CN201802421U

CN201802421U - Device for fixing beam support of U-shaped steel support for tunnel

Info

Publication number: CN201802421U
Application number: CN2010205573933U
Authority: CN
Inventors: 陶方新
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-12
Filing date: 2010-10-12
Publication date: 2011-04-20
Anticipated expiration: 2020-10-12

Abstract

The utility model discloses a device for fixing beam support of U-shaped steel support for tunnel so disposed that the device is composed of two U-shaped steel clamps for clamping the same U-shaped steel, a positioner for the beam support, and a locating plate, wherein each U-shaped steel clamp is composed of two tong arms in corresponding arrangement, a tension screw rod for adjusting opening and closing of the tong arms, an axle sleeve, and a nut, the lower end portion of the tong arm being in hinging engagement with a lug mounted on the upper end surface of the locating plate through a hinging shaft, the axle sleeve and a the nut being respectively disposed on the external surfaces in the lower portion of the two tong arms and being in hinging engagement with the tong arms, the axle sleeve being sleeved on the cylindrical portion of the tension screw rod and being position-restricted by a boss, the nut and the screw rod portion of the tension screw rod engaging with each other through screw thread, the cylindrical portion of the tension screw rod being provided with a cross through hole for adjusting the tension screw rod. The utility model enables a convenient adjustment of angles of frame, combined with safety, reliability, flexible adjustment, simple structure, firm fixing, fast reaching of beam support, and quick and convenient mounting and dismounting.

Description

U shaped steel roadway support forestope fastening devices

Technical field

The utility model relates to a kind of underworkings operation fastening devices, is specifically related to a kind of U shaped steel roadway support forestope fastening devices.

Background technology

At present, in the underworkings operation,, improve the coal-face intensity of crossheading supporting up and down for improving operating environment.The driving face of coal seam, thin seam mining and the separate zone production of tunnel and " utmost point three is soft " about the work plane all adopts the arch collapsible timbering supporting of U shaped steel half garden.U shaped steel half garden arch radius is 1200mm, tunnel clear span 2400mm, clear height 2600mm, net section 6m ²Relatively poor because of engineering geological conditions, pressure is big, and the roadway deformation amount is 90mm/ days, has to keep in repair repeatedly, but when removing U type canopy and setting up new canopy, the wall caving roof fall accident takes place easily.In order to prevent the roof fall side falling accident, coal mining enterprise often uses two clips fixedly to visit girder steel before the π type.Though stopped the generation of roof accident and empty useful event.But, use this clip fixedly forestope have following shortcoming: 1, because the clip space is certain, do not have flexibility, wanting must also need proprietary material to the forestope fixation, the consumption of waste material with plank back of the body reality.2, in the time of need moving forward forestope, clip is removed difficulty, and needs many people operate reach together during mobile forestope.3, when top board has pressure to make deformation of timbering, the forestope clip unloads to get off, and forestope clip and forestope have to be stayed on the top board like this, can not reuse again, causes the forestope clip to lose.So both increase the cost input, wasted manpower and materials again.

The utility model content

The purpose of this utility model is to provide a kind of can make things convenient for adjusting bracket canopy angle, safe and reliable, regulates flexibly, simple in structure, fixation, convenience, and the forestope speed of advancement is fast, installation, convenient disassembly, U shaped steel roadway support forestope fastening devices efficiently.

For achieving the above object, the utility model is by the following technical solutions:

A kind of U shaped steel roadway support forestope fastening devices wherein, is made up of two U shaped steel clamp, forestope locator and location-plates that are used to hold same U shaped steel; Described each U shaped steel clamp by two corresponding tong arms that are provided with, the tensioning screw mandrel, axle sleeve and the nut that are used to regulate the tong arm opening and closing form, the journal stirrup that the bottom of tong arm is provided with by hinging supporting shaft and location-plate upper surface is hinged join and, axle sleeve, nut be located at respectively on the lateral surface of two tong arm bottoms and with tong arm hinged join and, axle sleeve is sleeved on the cylindrical portion of tensioning screw mandrel and is spacing by boss, the screw mandrel position threaded engagement of nut and tensioning screw mandrel, the cylinder-shaped end of tensioning screw mandrel is provided with the cross-hole that is used to regulate the tensioning screw mandrel; The jaw position of tong arm upper end is arranged with the buckle U type draw-in groove that is used to hold U shaped steel fore shaft, and the corresponding surface of two tong arms is provided with and the corresponding inclined-plane of U shaped steel sheet pile lateral surface.

Further, described forestope locator is by taking over a business to regulate screw mandrel, taking over a business to form, fixedlying connected with the lower surface of taking over a business in upper end that take over a business to regulate screw mandrel, takes over a business the adjusting screw mandrel and be located at the tapped through hole threaded engagement in two location-plate centres between the U shaped steel clamp; The bottom of taking over a business to regulate screw mandrel is provided with and is used to regulate the cross-hole of taking over a business to regulate screw mandrel.

Further, described location-plate both sides are provided with and are used to place and the forestope support tube of mobile forestope, and the forestope support tube is sleeved on the back shaft that is fixedly connected on the location-plate both sides.

The beneficial effects of the utility model are:

Owing to adopt such scheme, when the construction working face is gone on, regulate the adjusting screw mandrel, the angle of adjusting bracket shed is safe and reliable easily, regulates flexibly; After the installation, can be fixed on tightly on the U type canopy, and be not easy loose or dislocation, improve the security reliability of face timbering greatly.The adjusting screw mandrel is taken over a business in adjusting, makes to take over a business to move down, and can timely forestope be moved forward, in the time of a few minutes, face roof is controlled, made top board be difficult for inbreak, fixed convenience, the reach forestope is short service time, has saved the labour hour of workman's supporting.Not only can alleviate working strength of workers, also improve operating efficiency.

Even if face roof pressure is big, deformation of timbering is serious, when clamp are squeezed, regulate the tensioning screw mandrel, tong arm is opened naturally, can be easy to lay down clamp, can not abandon, dismantle safe and efficient because of the pressure of face roof and the distortion pressurized of support shed.Installing or dismantling does not need to use any aid, and only needing a steel rod to insert cross-hole can operate.Adopt the location-plate both sides to be provided with to be used to and place and the forestope support tube of mobile forestope.When placement, reach or forestope, the forestope support tube uses as slideway, avoids damaging.

The utility model is simple in structure, and cost is low, and is easy to use, flexible operation, quickness and high efficiency.According to existing maintenance works and excavation work measuring and calculating, a driving face operating time can shorten 15 ~ 20 minutes; Can save 540 of man-hours every year,, save 64800 yuan every year at least according to 120 yuan of calculating of each down-hole worker.Economic benefit is considerable, promotes the use of fine.

The utility model is after the constructor of coal road driving, rock gangway developing, road maintenance work plane is blowing out, no matter be temporary lining, or during frame U steel bracket permanent support, installation work face top board, stop the empty top of driving face, leaked the top phenomenon, guarantee worker's personal safety, alleviated worker's labour intensity, improved operating efficiency.

Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following manual, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is a right view of the present utility model;

Fig. 3 is the utility model application state schematic diagram.

The specific embodiment

As accompanying drawing 1, Fig. 2, shown in Figure 3, the utility model is made up of two U shaped steel clamp 15, forestope locator 16, location-plates 9 that are used to hold same U shaped steel.Each U shaped steel clamp 15 is by two corresponding tong arms 3 that are provided with, be used to regulate the tensioning screw mandrel 5 of tong arm opening and closing, axle sleeve 4 and nut 6 are formed, the journal stirrup that the bottom of tong arm 3 is provided with by hinging supporting shaft 7 and location-plate 9 upper surfaces is hinged join and, axle sleeve 4, nut 6 be located at respectively on the lateral surface of two tong arm 3 bottoms and with tong arm 3 hinged join and, axle sleeve 4 is sleeved on the cylindrical portion of tensioning screw mandrel 5 and is spacing by boss 14, the screw mandrel position threaded engagement of nut 6 and tensioning screw mandrel 5, the cylinder-shaped end of tensioning screw mandrel 5 is provided with the cross-hole 10 that is used to regulate the tensioning screw mandrel; The corresponding surface that the jaw position of tong arm 3 upper ends is arranged with 1, two tong arm 3 of buckle U type draw-in groove that is used to hold U shaped steel fore shaft is provided with and the corresponding inclined-plane 18 of U shaped steel sheet pile lateral surface, and purpose is to cooperate buckle U type draw-in groove 1 to hold U shaped steel securely.

Forestope locator 16 is by take over a business regulating screw mandrel 11, taking over a business 12 and form, fixedlying connected with the lower surface of taking over a business 12 in upper end that take over a business to regulate screw mandrel 11, takes over a business adjusting screw mandrel 11 and be located at the tapped through hole threaded engagement in two location-plate 9 centres between the U shaped steel clamp; The bottom of taking over a business to regulate screw mandrel 11 is provided with and is used to regulate the cross-hole 17 of taking over a business to regulate screw mandrel.

Location-plate 9 both sides are provided with and are used to place and the forestope support tube 8 of mobile forestope 13, and the forestope support tube is sleeved on the back shaft that is fixedly connected on the location-plate both sides, damages when avoiding moving forward, and accelerates translational speed.

During use, 4 buckle U type draw-in grooves 1 with U shaped steel clamp 15 both sides are hooked on the U shaped steel 2 of back timber earlier, regulate tensioning screw mandrel 5, and U shaped steel clamp 15 are securely fixed on the U shaped steel 2.Adjusting takes over a business to regulate screw mandrel 11, make 12 to move down, lift forestope 13, forestope 13 is passed U shaped steel clamp 15 along the space between the tong arm 3 to be placed on the forestope support tube 8, adjusting takes over a business to regulate screw mandrel 11, make on 12 and move, make forestope 13 be securely fixed in U shaped steel 2 and take over a business between 12.

When needing mobile forestope 13, adjusting takes over a business to regulate screw mandrel 11, take over a business 12 and move down, make forestope 13 loosening, forestope 13 is moved forward toward tunneling direction, and perpendicular to the cross section, tunnel, moving to needs the position, regulates and takes over a business to regulate screw mandrel 11, takes over a business on 12 and moves, after making forestope 13 fixations, above forestope 13, set up U shaped steel 2 again.

When needing dismounting forestope 13, regulate and take over a business to regulate screw mandrel 11, take over a business 12 and move down, make forestope 13 loosening, extract forestope 13 out, and be placed on tunnel one side.When needing dismounting U shaped steel clamp 15, regulate tensioning screw mandrel 5, make the tong arm 3 of U shaped steel clamp 15 loosening, take down after breaking away from U shaped steel 2, and be placed on tunnel one side and get final product.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. a U shaped steel roadway support forestope fastening devices is characterized in that: be made up of two U shaped steel clamp (15), forestope locator (16) and location-plates (9) that are used to hold same U shaped steel; Described each U shaped steel clamp (15) are by two corresponding tong arms (3) that are provided with, be used to regulate the tensioning screw mandrel (5) of tong arm opening and closing, axle sleeve (4) and nut (6) are formed, the journal stirrup that the bottom of tong arm (3) is provided with by hinging supporting shaft (7) and location-plate (9) upper surface is hinged join and, axle sleeve (4), nut (6) be located at respectively on the lateral surface of two tong arms (3) bottom and with tong arm (3) hinged join and, axle sleeve (4) is sleeved on the cylindrical portion of tensioning screw mandrel (5) and is spacing by boss (14), the screw mandrel position threaded engagement of nut (6) and tensioning screw mandrel (5), the cylinder-shaped end of tensioning screw mandrel (5) is provided with the cross-hole (10) that is used to regulate the tensioning screw mandrel; The jaw position of tong arm (3) upper end is arranged with the buckle U type draw-in groove (1) that is used to hold U shaped steel fore shaft, and the corresponding surface of two tong arms (3) is provided with and the corresponding inclined-plane of U shaped steel sheet pile lateral surface (18).

2. U shaped steel roadway support forestope fastening devices according to claim 1, it is characterized in that: described forestope locator (16) is by take over a business regulating screw mandrel (11), taking over a business (12) and form, fixedlying connected with the lower surface of taking over a business (12) in upper end that take over a business to regulate screw mandrel (11), takes over a business adjusting screw mandrel (11) and be located at the tapped through hole threaded engagement in two location-plate (9) centres between the U shaped steel clamp; The bottom of taking over a business to regulate screw mandrel (11) is provided with and is used to regulate the cross-hole (17) of taking over a business to regulate screw mandrel.

3. U shaped steel roadway support forestope fastening devices according to claim 1, it is characterized in that: described location-plate (9) both sides are provided with the forestope support tube (8) that is used for placement and mobile forestope (13), and the forestope support tube is sleeved on the back shaft that is fixedly connected on the location-plate both sides.