Supporting device for gob-side entry retaining working face flexible formwork

Abstract

The utility model relates to a supporting device for a gob-side entry retaining working face flexible formwork, which comprises a top beam formwork supporting mechanism, a stand column and a base formwork supporting mechanism, the top beam formwork supporting mechanism is fixedly connected to the top of the stand column through a column cap, a pin shaft and a stand column ball head, and the base formwork supporting mechanism is fixedly connected to the bottom of the stand column through a column socket, a pin shaft and a stand column cylinder bottom; the top beam formwork supporting mechanism comprises a top beam, a rollover jack, a rollover beam, a plurality of supporting spring hooks, a long rod and a short rod; the supporting spring hook is arranged at the far end of the rollover beam and comprises a supporting plate, a sleeve, a spring and a spring shaft. According to the utility model, the design is ingenious, the structure is simple, the good roof contact of the flexible die and the omnibearing fixation of the die supporting meshes under the condition that the top plate is uneven are realized, the operation difficulty is greatly reduced, the labor intensity of workers is reduced, the production efficiency is improved, and compared with the prior art, the device has good market prospect and development space.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine underground support equipment technical field especially for along empty lane working face flexible mould's supporting device for along empty lane. BACKGROUND

[0002] Along empty lane is the lane arrangement mode that adopts certain support mode behind the coal mining face, keeps the mining roadway along the edge of the goaf and serves the next working face. At present, the along empty lane technology that is more applied is the flexible mould concrete along empty lane technology. The flexible mould concrete along empty lane technology is that the flexible mould bag is made in advance with the fiber fabric, the flexible mould bag is placed at the lane keeping position, the concrete is injected into the flexible mould bag through the filling pump, the surplus water is discharged by utilizing the water permeable and grout impermeable characteristics of the flexible mould bag, the water cement ratio is reduced, the support strength of the concrete is improved, and a concrete continuous wall type support structure is formed at the lane keeping position of the goaf. The technology is adopted by most coal mines because of the fast lane forming speed and excellent lane keeping quality.

[0003] The flexible mould support is an important link of the along empty lane technology, and the quality of the flexible mould support directly influences the lane forming speed and the concrete wall quality. Before the concrete filling, the flexible mould is connected with the roof net firmly, the flexible mould bag is supported by the unit type support on the side of the pedestrian, the flexible mould bag is fixed by the anchor rod on the side of the goaf, the flexible mould bag is fixed by the metal mesh before the filling, and the verticality of the filling wall in the direction of the trend and the height is ensured.

[0004] The existing support mode of the flexible mould has the following problems: (1) the side adjusting jack and the inclined support jack of the existing base cannot limit the support mould net, the verticality of the filling wall in the direction of the trend and the height is not easy to ensure, and the concrete wall forming is poor; (2) the flexible mould bag is easy to fall during the pouring of the concrete, the roof connection effect is not good, and the lane forming quality is influenced.

[0005] How to design a supporting device for along empty lane working face flexible mould, which is ingenious in design, simple in structure, can realize good roof connection of the flexible mould and limiting of the support mould net, ensure the verticality and quality of the flexible mould after forming, is simple to operate, reduces the labor intensity and cost, and solves the problems. UTILITY MODEL CONTENTS

[0006] In order to solve the existing side adjustment jack and inclined strut jack cannot limit the support mold mesh, the filling wall trend direction and height direction perpendicularity is not easy to guarantee, the concrete wall forming is poor, the flexible mold bag is easy to fall during pouring concrete, the top joint effect is not good, and the like technical problems influence the quality of the roadway forming, the utility model provides a support device for flexible mold of gob-side entry retaining working face, to realize the clever design, simple structure, realize the good top joint of flexible mold and the limitation of support mold mesh, guarantee the perpendicularity and quality of flexible mold after forming, simple operation, reduce the labor intensity and the cost.

[0007] The utility model discloses a technical scheme that is adopted for solving the above technical problem: a support device for flexible mold of gob-side entry retaining working face, including roof beam support mould mechanism, stand and base support mould mechanism, and the roof beam support mould mechanism is fixedly connected at the top of stand through column cap, pin shaft, stand ball head, and the base support mould mechanism is fixedly connected at the bottom of stand through column nest, pin shaft, stand cylinder bottom, the roof beam support mould mechanism includes roof beam, side turnover jack, side turnover beam, a plurality of support spring hooks, long rod and short rod, and the lower end surface of roof beam is provided with a plurality of trunnion plates, and the fixed end of side turnover jack is connected on the left trunnion plate through pin shaft, and the fixed end of side turnover beam is connected on the right trunnion plate through pin shaft, and the fixed end of long rod is connected on the middle trunnion plate through pin shaft, and the free end of side turnover jack is connected on one end of short rod through pin shaft, and the other end of short rod is connected on the ear plate of side turnover beam lower part through pin shaft, and the free end of long rod is also connected on the other end of short rod through pin shaft, and side turnover jack, side turnover beam, long rod and short rod constitute multi-connecting rod telescopic mechanism, and through the telescopic of side turnover jack piston rod, the turnover of long rod, short rod and side turnover beam is driven, the support spring hook is set up at the distal end of side turnover beam, and the support spring hook includes support plate, sleeve, spring, spring shaft, a plurality of row holes are formed in support plate, and the support spring hook is fixed on side turnover beam through row hole and fixed pin, the sleeve is fixedly welded on the outer end of support plate and inclines outward, the spring shaft is installed in sleeve, and spring is arranged around spring shaft.

[0008] As the further optimization scheme of the above support device for flexible mold of gob-side entry retaining working face, the number of row holes in the support plate is four to six.

[0009] As the further optimization scheme of the above support device for flexible mold of gob-side entry retaining working face, the base support mould mechanism includes base, a plurality of ratchet tensioners and a plurality of basket bolts, the fixed end of ratchet tensioner is connected on the side plate of base through lifting ring, and the fixed end of basket bolt is connected on the bottom plate of base through ear seat, and the distance between support mould mesh and base of support device is adjusted by changing the length of basket bolt and ratchet tensioner, so as to limit the support mould mesh.

[0010] As further optimization scheme of the support device for flexible form along the gob-side entry retaining working face, the number of the ratchet tensioners is four groups, and the number of the basket bolts is two.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] I. The utility model discloses a top beam formwork mechanism, a stand and a base formwork mechanism, and the top beam formwork mechanism is fixedly connected to the top of the stand through a column cap, a pin shaft and a stand ball head, and the base formwork mechanism is fixedly connected to the bottom of the stand through a column nest, a pin shaft and a stand cylinder bottom.

[0013] II. The support spring hook can guarantee that the flexible form bag is well connected to the top when the roof is uneven.

[0014] III. The basket bolt and the ratchet tensioner arranged on the base formwork mechanism can limit the support formwork mesh.

[0015] IV. When the distance between the support formwork mesh and the base of the support device changes, the length of the basket bolt and the ratchet tensioner can be adjusted to guarantee the limitation of the support formwork mesh.

[0016] V. The basket bolt and the ratchet tensioner are convenient to adjust, simple to operate and low in price. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a front view structure schematic view of the utility model;

[0019] Figure 3 It is a three-dimensional schematic view of the utility model in use;

[0020] Figure 4 It is a side view schematic view of the utility model in use;

[0021] Figure 5 It is a top beam formwork mechanism bottom view structure schematic view;

[0022] Figure 6 It is a top beam formwork mechanism front view structure schematic view;

[0023] Figure 7 It is a base formwork mechanism three-dimensional structure schematic view;

[0024] Figure 8 It is a spring support hook front view;

[0025] Figure 9is a spring support hook sectional view;

[0026] Marked in the figure: 1, roof beam formwork mechanism, 2, stand, 3, base formwork mechanism, 4, flexible form, 5, formwork mesh, 6, roof beam, 7, side tipping jack, 8, side tipping beam, 9, support spring hook, 10, base, 11, ratchet tensioner, 12, basket bolt, 13, support plate, 14, sleeve, 15, spring, 16, spring shaft, 17, long rod, 18, short rod. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model will be further explained in detail below in combination with the drawings.

[0028] As shown in the figure, the support device for flexible form along the empty roadway working face, including roof beam formwork mechanism 1, stand 2 and base formwork mechanism 3, roof beam formwork mechanism 1 is fixedly connected through column cap, pin shaft, stand ball head at the top of stand 2, and base formwork mechanism 3 is fixedly connected through column nest, pin shaft, stand cylinder bottom at the bottom of stand 2;The roof beam formwork mechanism 1 includes roof beam 6, side tipping jack 7, side tipping beam 8, multiple support spring hooks 9, long rod 17 and short rod 18, the lower end surface of roof beam 6 is provided with multiple trunnion plates, the fixed end of side tipping jack 7 is connected on the left trunnion plate through pin shaft, the fixed end of side tipping beam 8 is connected on the right trunnion plate through pin shaft, the fixed end of long rod 17 is connected on the middle trunnion plate through pin shaft, the free end of side tipping jack 7 is connected on one end of short rod 18 through pin shaft, the other end of short rod 18 is connected on the ear plate of the lower part of side tipping beam 8 through pin shaft, and the free end of long rod 17 is also connected on the other end of short rod 18 through pin shaft, and side tipping jack 7, side tipping beam 8, long rod 17 and short rod 18 constitute a multi-linkage telescopic mechanism, which drives the overturning of long rod 17, short rod 18 and side tipping beam 8 through the telescoping of the piston rod of side tipping jack 7;The support spring hook 9 is arranged at the distal end of side tipping beam 8, and the support spring hook 9 includes support plate 13, sleeve 14, spring 15 and spring shaft 16, a plurality of row holes are formed in the support plate 13, and the support spring hook 9 is fixed on the side tipping beam 8 through the row holes and fixed pins;The sleeve 14 is fixedly welded on the outer end of support plate 13 outwardly inclined, the spring shaft 16 is installed in the sleeve 14, and the spring 15 is arranged around the spring shaft 16.

[0029] The number of row holes in the support plate 13 is four to six.

[0030] The base formwork mechanism 3 includes base 10, multiple groups of ratchet tensioners 11 and multiple basket bolts 12, the fixed end of ratchet tensioner 11 is connected on the side plate of base 10 through a lifting ring, the fixed end of basket bolt 12 is connected on the bottom plate of base 10 through an ear seat, and the distance between formwork mesh and support device base is adjusted by changing the length of basket bolt 12 and ratchet tensioner 11, so that the formwork mesh is limited.

[0031] The number of the ratchet tensioners 11 is four groups, and the number of the basket bolts 12 is two.

[0032] The use process of the device is as follows: as shown in Figure 3 、 4 , Figure 3 is a three-dimensional schematic view of the use state of the utility model; Figure 4 is a side view schematic view of the use state of the utility model; first, the upper part of the flexible formwork bag 4 and the anchor rod of the top plate are bound well, the stand column 2 is lifted, the side tipping jack 7 is stretched out, and the supporting spring hook 9 hooks the round steel of the flexible formwork bag 4 under the action of the side tipping jack 7, and the flexible formwork bag is tied into the top plate. The front part of the spring shaft 16 designed as a blunt cone hooks the flexible formwork, and under the action of the side tipping jack 7, the flexible formwork bag 4 can be tied into the top plate without being broken, and when the top plate is not flat, the spring shaft 16 can be connected to the top under the action of the hook spring 15, so that the flexible formwork 4 is well connected to the top.

[0033] The support formwork mesh 5 is installed between the flexible formwork 4 and the base support formwork mechanism 3, after the upper part of the flexible formwork 4 is connected to the top, the other end of the ratchet tensioner 11 and the basket bolt 12 on the base support formwork mechanism 3 is connected with the support formwork mesh 5, and the length of the ratchet tensioner 11 and the basket bolt 12 is adjusted, so that the fixing of the support formwork mesh can be completed.

[0034] In actual application, the length of the supporting plate 13 of the supporting spring hook 9 can be changed, and the number of the row holes can be increased, so that the installation of the flexible formwork 4 with different distances can be adapted. The number of the ratchet tensioner 11 and the basket bolt 12 on the base support formwork mechanism 3 can be increased or reduced according to the needs.

[0035] The utility model has the advantages of clever design, simple structure, good connection of the flexible formwork under the condition of the uneven top plate, all-round fixing of the support formwork mesh, greatly reduced operation difficulty, reduced labor intensity, improved production efficiency, solved problems that the existing base side adjusting jack and inclined bracing jack cannot limit the support formwork mesh, the flexible formwork bag is easy to fall during pouring of concrete, the connection effect is not good, the filling wall trend direction square and the height direction perpendicularity are not easy to guarantee, the quality of the formed roadway is affected, and the formed concrete wall is poor. For the prior art, the utility model has good market prospect and development space.

[0036] The preferred specific embodiments and examples of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments and examples, and various changes can be made within the knowledge range of the person skilled in the art without departing from the concept of the utility model.

Claims

1. A support device for a flexible formwork on a gob-side entry retaining working surface, characterized by: The invention comprises a top beam formwork mechanism (1), a column (2) and a base formwork mechanism (3), wherein the top beam formwork mechanism (1) is fixedly connected to the top of the column (2) through a column cap, a pin shaft and a column ball head, and the base formwork mechanism (3) is fixedly connected to the bottom of the column (2) through a column socket, a pin shaft and a column cylinder bottom; the top beam formwork mechanism (1) comprises a top beam (6), a rollover jack (7), a rollover beam (8), a plurality of support spring hooks (9), a long rod (17 ) and a short rod (18), a plurality of trunnion plates are provided on the lower end surface of the top beam (6), the fixed end of the rollover jack (7) is connected to the trunnion plate on the left side through a pin, the fixed end of the rollover beam (8) is connected to the trunnion plate on the right side through a pin, the fixed end of the long rod (17) is connected to the middle trunnion plate through a pin, the free end of the rollover jack (7) is connected to one end of the short rod (18) through a pin, and the other end of the short rod (18) is connected to the trunnion plate through a pin. The long rod (17) is connected to the ear plate at the lower part of the rollover beam (8), and the free end of the long rod (17) is also connected to the other end of the short rod (18) through a pin shaft. The rollover jack (7), the rollover beam (8), the long rod (17) and the short rod (18) constitute a multi-link telescopic mechanism. The long rod (17), the short rod (18) and the rollover beam (8) are driven to flip by the expansion and contraction of the piston rod of the rollover jack (7); the support spring hook (9) is arranged at the far end of the rollover beam (8), and the support spring hook (9) includes a support plate (13), a sleeve (14), a spring (15), and a spring shaft (16). The support plate (13) is provided with a plurality of rows of holes, and the support spring hook (9) is fixed to the rollover beam (8) through the rows of holes and the fixing pin; the sleeve (14) is fixedly welded to the outer end of the support plate (13) in an outward tilt, and the spring shaft (16) is installed in the sleeve (14), and the spring shaft (16) is surrounded by a spring (15).

2. The support device for the flexible formwork of the gob-side entry retaining working face according to claim 1, characterized in that: The number of holes in the support plate (13) is four to six.

3. The supporting device for the flexible formwork of the gob-side entry retaining working face according to claim 1, characterized in that: The base mold support mechanism (3) includes a base (10), multiple groups of ratchet tensioners (11) and multiple basket bolts (12), the fixed ends of the ratchet tensioners (11) are connected to the side plates of the base (10) through hanging rings, and the fixed ends of the basket bolts (12) are connected to the bottom plate of the base (10) through ear seats. By changing the lengths of the basket bolts (12) and the ratchet tensioners (11), the distance between the mold support mesh and the base of the support device is adjusted to achieve position limiting of the mold support mesh.

4. The supporting device for the flexible formwork of the gob-side entry retaining working face according to claim 3, characterized in that: The number of the ratchet tensioners (11) is four groups, and the number of the turnbuckle bolts (12) is two.

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