Roller slideway ventilation structure of secondary lining trolley

Abstract

The utility model relates to the technical field of tunnel lining construction, and discloses a secondary lining trolley roller slide way ventilation structure which comprises a wind bag, the wind bag penetrates through a lining trolley, fixing frames are arranged at the positions, corresponding to the two ends of the lining trolley, of the wind bag in a sleeved mode, and guide assemblies are arranged between the inner sides of the fixing frames and the wind bag. The guide assembly comprises a plurality of rolling shafts distributed in the circumferential direction of the inner side wall of the fixing frame, a rotating shaft penetrates through the middles of the rolling shafts, the two ends of the rotating shaft are connected with supporting rods correspondingly, the ends, away from the rotating shaft, of the supporting rods are connected with the fixing frame, and a plurality of strip-shaped grooves are formed in the surfaces of the rolling shafts in the length direction; the outer side wall of the fixing frame is connected with a lining trolley. According to the utility model, the fixed frame and the guide component are arranged in a matched manner, so that the fold sections, possibly existing at the two ends of the secondary lining trolley, of the wind bag are shaped and guided, the wind bag is prevented from being bent and wrinkled in the walking process of the lining trolley, and the ventilation cross section of the wind bag is kept unchanged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel lining construction technical field, concretely is a secondary lining trolley roller axle slide way ventilation structure. BACKGROUND

[0002] In the tunnel excavation process, ventilation is a key link, timely ventilation after blasting can blow away the gun smoke and dust particles, can accelerate the reduction of the concentration of toxic and harmful gases, makes the temperature, relative humidity and flow rate of tunnel internal air reach the construction requirement such as prescribed standard. The existing tunnel ventilation mode usually adopts the combination form of ventilator and wind bag, the wind bag passes through the tunnel lining trolley, and under the drive of the ventilator, carries out construction ventilation to the tunnel interior, but in the actual operation process, the wind bag has the crumpling section at the both ends of the tunnel lining trolley, can cause the change of ventilation section, causes the local wind resistance to increase obviously, and the wind volume loss is more, influences the ventilation effect of tunnel construction. SUMMARY

[0003] The utility model discloses a secondary lining trolley roller axle slide way ventilation structure to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a secondary lining trolley roller axle slide way ventilation structure, including wind bag, the wind bag passes through lining trolley, and the fixed frame is set up to the corresponding position of wind bag with lining trolley both ends, be equipped with the guide assembly between fixed frame inboard and wind bag, the guide assembly includes the plurality of roller axle that distributes along the inboard wall of fixed frame circumferentially, the middle part of roller axle is penetrated and is arranged the pivot, the both ends of pivot are connected with support rod respectively, the end of support rod away from pivot is connected with fixed frame, the surface of roller axle is set up with a plurality of strip grooves along the length direction, the outboard wall of fixed frame is connected with lining trolley.

[0005] Make the following improvement in the application scheme, the fixed frame is equipped with cavity, the rack plate is rotatably installed in the cavity, the ring groove is seted up on the inboard wall of fixed frame, the ring groove is communicated with the cavity, support rod passes through ring groove and is connected with rack plate, the one side of rack plate is engaged and is connected with drive gear.

[0006] Make the following improvement in the application scheme, the top of fixed frame is equipped with motor, the output shaft of motor is connected with drive gear.

[0007] Make the following improvement in the application scheme, the part of wind bag except the part in lining trolley interior is seted up with ventilation tube, the inner diameter of ventilation tube is greater than the outer diameter of wind bag.

[0008] The improvement is that the inner top of the ventilation cylinder is provided with a plurality of groups of slide tracks in the length direction, the slide tracks are provided with pulley hooks, and the wind bag is provided with connecting rings matched with the pulley hooks.

[0009] The improvement is that the pulley hook comprises a moving frame, a pulley shaft and a connecting plate are arranged on the inner side of the moving frame, a pulley is sleeved on the pulley shaft, a fixed rod is rotatably connected to the bottom of the connecting plate, a hook is connected to the lower end of the fixed rod, and a buckle is hinged to the hook.

[0010] Compared with the prior art, the secondary lining trolley roller slide track ventilation structure has the following beneficial effects:

[0011] The fixing frame and the guide assembly are matched to shape and guide the possible folding sections of the wind bag at the two ends of the secondary lining trolley, so that the wind bag is prevented from being bent and wrinkled during the running of the lining trolley, the ventilation cross section of the wind bag remains unchanged, the tunnel construction ventilation can be continuously provided, the ventilation effect of the tunnel construction is not affected, the construction safety is ensured, the lining trolley does not need to be removed and walked again after the wind is stopped and the wind bag is removed at any time, and the wind bag is not damaged or has no leakage, so that the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a connection diagram of the lining trolley of the utility model;

[0013] Figure 2 It is a sectional view of the utility model;

[0014] Figure 3 It is a structural diagram of the roller;

[0015] Figure 4 It is a connection diagram of the ventilation cylinder and the wind bag;

[0016] Figure 5 It is a structural diagram of the pulley hook.

[0017] In the drawing: 1, wind bag; 11, connecting ring; 2, lining trolley; 3, fixing frame; 31, cavity; 32, rack plate; 33, ring groove; 34, driving gear; 4, roller; 41, rotating shaft; 42, supporting rod; 43, strip-shaped groove; 5, ventilation cylinder; 51, slide track; 6, pulley hook; 61, moving frame; 62, connecting plate; 63, pulley; 64, fixed rod; 65, hook; 66, buckle. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model.

[0019] As shown in the figure, Figures 1-5 A secondary lining trolley roller slide ventilation structure mainly consists of a wind bag 1 and a fixed frame 3, the wind bag 1 passes through a lining trolley 2, the lining trolley 2 includes a side mould and a main door frame, wherein the main door frame is located inside the side mould, the fixed frame 3 is sleeved on the wind bag 1 at the position corresponding to the two ends of the lining trolley 2 and is fixedly connected with the main door frame;

[0020] The front end of the wind bag 1 is fixedly connected with the outer end face of the fixed frame 3, and a guide assembly is arranged between the inner side of the fixed frame 3 and the wind bag 1, the guide assembly includes a plurality of rollers 4 distributed in the circumferential direction of the inner side wall of the fixed frame 3, the wind bag 1 is shaped and guided by the rollers 4, so that the wind bag 1 does not generate an angle of folding at this position, and meanwhile the friction force of the inner wall of the ventilation opening of the wind bag 1 and the fixed frame 3 can be reduced, a rotating shaft 41 is arranged through the middle part of the roller 4, the two ends of the rotating shaft 41 are respectively connected with support rods 42, the ends of the support rods 42 away from the rotating shaft 41 are connected with the fixed frame 3, a plurality of strip-shaped grooves 43 are formed in the length direction of the surface of the roller 4, the outer side wall of the fixed frame 3 is connected with the lining trolley 2, a cavity 31 is arranged in the fixed frame 3, a rack plate 32 is rotatably arranged in the cavity 31, a ring groove 33 is formed in the inner side wall of the fixed frame 3 and communicates with the cavity 31, the support rods 42 pass through the ring groove 33 and are connected with the rack plate 32, a drive gear 34 is engagedly connected to one side of the rack plate 32, a motor is arranged at the top end of the fixed frame 3, the output shaft of the motor is connected with the drive gear 34, and the motor is used in the same speed and direction as the lining trolley 2.

[0021] A ventilation cylinder 5 is sleeved on the part of the wind bag 1 except the part located inside the lining trolley 2, the inner diameter of the ventilation cylinder 5 is larger than the outer diameter of the wind bag 1, and the ventilation cylinder 5 is fixedly arranged on the tunnel side wall; a plurality of groups of slides 51 are formed in the length direction of the inner top of the ventilation cylinder 5, a pulley hook 6 is arranged in the slide 51, and a connecting ring 11 matched with the pulley hook 6 is arranged on the wind bag 1; the pulley hook 6 includes a moving frame 61, the outer two ends of the moving frame 61 are provided with sliding blocks, the moving frame can slide in the ventilation cylinder 5 through the cooperation of the sliding blocks and the slides, a pulley shaft and a connecting plate 62 are arranged in the inner side of the moving frame 61, a pulley 63 is sleeved on the pulley shaft, a fixed rod 64 is rotatably connected to the bottom of the connecting plate 2, a hook 65 is connected to the lower end of the fixed rod 64, and a buckle 66 is hingedly connected to the hook 65.

[0022] The above embodiments are only some of the embodiments of the utility model, but not all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

Claims

1. A secondary lining trolley roller slide ventilation structure, characterized by: The utility model provides a wind bag (1) passes through lining trolley (2), and the fixed frame (3) is set on the wind bag (1) with lining trolley (2) corresponding position opposite both ends, and the guide assembly is arranged between the inside of fixed frame (3) and wind bag (1), the guide assembly includes a plurality of roll axes (4) that are distributed in the circumferential direction of the inside wall of fixed frame (3), the middle part of roll axis (4) is provided with a rotating shaft (41), the both ends of rotating shaft (41) are connected with support rod (42) respectively, the one end of support rod (42) away from rotating shaft (41) is connected with fixed frame (3), a plurality of strip grooves (43) are formed on the surface of roll axis (4) along the length direction, and the outside wall of fixed frame (3) is connected with lining trolley (2).

2. A secondary lining trolley roller track ventilation structure according to claim 1, characterised in that: The fixed frame (3) is provided with a cavity (31) inside, the rack plate (32) is rotatably installed in the cavity (31), the ring groove (33) is formed on the inside wall of fixed frame (3), the ring groove (33) is communicated with the cavity (31), the support rod (42) passes through the ring groove (33) and is connected with the rack plate (32), and the one side of rack plate (32) is connected with the driving gear (34) in meshing.

3. A secondary lining trolley roller track ventilation structure according to claim 2, characterised in that: The fixed frame (3) is provided with a motor at the top end, and the output shaft of the motor is connected with the driving gear (34).

4. The secondary lining jumbo trolley roller track ventilation structure according to claim 1, characterized in that: The part of wind bag (1) except the part located in the inside of lining trolley (2) is sleeved with a ventilation tube (5), and the inner diameter of ventilation tube (5) is greater than the outer diameter of wind bag (1).

5. A secondary lining trolley roller track ventilation arrangement according to claim 4, characterised in that: A plurality of slide grooves (51) are formed on the inner top of ventilation tube (5) along the length direction, the pulley hook (6) is installed in the slide groove (51), and the connecting ring (11) is arranged on the wind bag (1) and matched with the pulley hook (6).

6. A secondary lining trolley roller track ventilation structure according to claim 5, characterised in that: The pulley hook (6) comprises a moving frame (61), a pulley shaft and a connecting plate (62) are arranged on the inside of moving frame (61), a pulley (63) is sleeved on the pulley shaft, a fixed rod (64) is rotatably connected to the bottom of connecting plate (62), a hook (65) is connected to the lower end of fixed rod (64), and a buckle (66) is hingedly connected to the hook (65).

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