CN220721063U - Slope sliding prevention device for rear matched trolley of shield tunneling machine - Google Patents

Abstract

The utility model relates to a slip-proof device for a trolley matched with a shield machine, which is applied to the technical field of wheel retaining devices and solves the technical problem of slip-proof of wheels of tunnel construction equipment, and comprises a stop piece arranged on a track, a fixing piece arranged on the wheel device and a connecting rod connected between the stop piece and the fixing piece, wherein the stop piece comprises a bottom plate positioned on the track and a baffle plate fixed on the bottom plate, a waist-shaped hole is formed in the fixing piece along the length direction of the track, one end of the connecting rod is fixedly provided with a rotating shaft, the other end of the connecting rod is fixedly connected with the stop piece, and the rotating shaft slides and rotates in the waist-shaped hole; when the wheels walk, the rotating shaft slides to one end of the waist-shaped hole, and the bottom plate is separated from the wheels; when the wheels walk backwards, the bottom plate is fixed, the rotating shaft slides in the waist-shaped holes, and the wheels are pressed on the bottom plate and lean against the baffle. The utility model has the advantages that the stop piece can synchronously walk on wheels, meanwhile, the trolley can be effectively prevented from sliding on a slope, and the safety is higher.

Description

Slope sliding prevention device for rear matched trolley of shield tunneling machine

Technical Field

The utility model relates to the technical field of wheel retaining devices, in particular to a slope sliding prevention device for a trolley matched with a shield machine.

Background

The shield construction is mainly divided into three stages, namely, starting, propelling and receiving and disassembling the machine. The shield machine is started in a downhill state, and the shield machine is received in an uphill state, so that a safety measure for preventing the shield machine trolley from sliding is needed in the process of disassembling and assembling the shield machine.

As shown in fig. 1, the shield tunneling machine receives a schematic diagram of a shutdown state, and after the main machine is disassembled, a section of the trolley 1 needs to be pulled out of the tunnel, and then the main machine is disassembled. Since the vehicle is in the ascending stage, the trolley 1 needs to be taken with a slope-slip prevention measure. The prior art measures are to insert the pads 13 on the rail behind the wheels 11, thus preventing the wheels from backing.

The measures can only be used when the trolley is stationary, and when the trolley is in a running process, the cushion blocks cannot synchronously move on the track along with the wheels, so that the following two problems are caused, and once the trolley is in a backward movement after a certain distance, the cushion blocks lose blocking effect under the action of inertia; or the operator is required to move the cushion block in real time, so that the personal risk of the operator is increased, and the operation specification is not met. In view of the above, it is desirable to design a new device for preventing the trolley from sliding down.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the device for preventing the trolley matched with the shield machine from sliding, which has the advantages that the stop piece can synchronously walk through wheels, meanwhile, the trolley is effectively prevented from sliding, and the safety is higher.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a shield constructs supporting platform truck in back and prevents swift current slope device, includes the mounting that sets up on the track, sets up mounting and connecting rod between mounting on wheel device, the mounting includes the bottom plate that is located on the track and fixes the baffle on the bottom plate, set up waist type hole along track length direction on the mounting, the one end of connecting rod is fixed with the pivot, the other end is fixed with the mounting, the pivot slides and rotates and set up in waist type hole; when the wheels walk, the rotating shaft slides to one end of the waist-shaped hole, and the bottom plate is separated from the wheels; when the wheels walk backwards, the bottom plate is fixed, the rotating shaft slides in the waist-shaped holes, and the wheels are pressed on the bottom plate and lean against the baffle.

Further set up: the connecting rod comprises a thread sleeve and threaded rods which are in threaded connection with the thread sleeve, and the threads of the two threaded rods are opposite threads; and rotating the threaded sleeve, and relatively moving the screw rod in the threaded sleeve.

Further set up: the waist-shaped hole is arranged downwards from one end close to the connecting rod to the other end in an inclined mode, when the rotating shaft is located at one end of a high position, the bottom plate is separated from the wheel, and one end, close to the wheel, of the bottom plate is separated from the track.

Further set up: the lower surface of the bottom plate is fixedly provided with a limiting plate clamped on the track.

Compared with the prior art, the utility model has the following beneficial effects:

1. the stopping device can synchronously walk forwards along with wheels but cannot synchronously walk backwards, so that potential safety hazards caused by moving the slope sliding device in real time by operators are avoided while the trolley is prevented from sliding on the slope;

2. the wheel rail is formed by splicing one section with one section, the front end of the stop piece is lifted in the forward walking process of the stop piece along with the wheels, the condition that the stop piece is blocked due to the dislocation of the rail is avoided, and the stop piece can walk smoothly along with the wheels;

3. the connecting rod can adjust length, further adjusts stopper front end perk height, satisfies walking under multiple operating mode, improves the universality.

Drawings

FIG. 1 is a schematic diagram of a shield machine in a background art in a receiving shutdown state;

FIG. 2 is a schematic view showing the overall structure of the present embodiment in cooperation with a wheel;

fig. 3 is a schematic perspective view of the present embodiment;

fig. 4 is a schematic view of the state of the stopper at the time of wheel rollback of the present embodiment;

fig. 5 is a schematic view of the state of the stopper when the wheel of the present embodiment is advanced.

In the figure: 1. a trolley; 11. a wheel; 12. a track; 13. a cushion block; 2. a stopper; 21. a bottom plate; 22. a baffle; 23. a limiting plate; 3. a connecting rod; 31. a screw; 32. a thread sleeve; 33. a rotating shaft; 34. a connecting plate; 4. a fixing member; 41. waist-shaped holes.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

Examples: referring to fig. 2-5, a device for preventing a supporting trolley behind a shield machine from sliding comprises a stop piece 2 arranged on a track 12, a fixing piece 4 arranged on a wheel 11 and a connecting rod 3 with two ends respectively connected to the stop piece 2 and the fixing piece 4. When the wheel 11 walks, the stop member 2 is driven to move simultaneously with the wheel 11 by the connecting rod 3.

Referring to fig. 2-5, the fixing member 4, in particular angle iron or steel plate, is welded to the frame structure of the wheel 11. The stopper 2 comprises a bottom plate 21 and a baffle 22 welded on the upper surface of the bottom plate 21, two limiting plates 23 are welded on the lower surface of the bottom plate 21, the track 12 is positioned in the middle of the two limiting plates 23, and the neutral gear of the two limiting plates 23 is larger than the width of the track 12. When the wheel 11 is retracted, the wheel presses against the bottom plate 21 and then abuts against the baffle 22, thereby preventing the wheel 11 from retracting. The front end of the bottom plate 21 is provided with an inclined plane, so that the bottom plate 21 and the baffle 22 slide on the rail 12 when the side edge of the bottom plate 21 is extruded when the wheel 11 is retracted, and the stop effect is lost.

Referring to fig. 3 to 5, the fixing member 4 is provided with a waist-shaped hole 41, one end of the waist-shaped hole 41, which is close to the connecting rod 3 and the stop member 2, is arranged in an upward inclined manner, and the waist-shaped hole 41 is integrally formed in a V shape, wherein one section is a horizontal section, and the other section is an inclined section. The two ends of the connecting piece are respectively fixedly provided with a rotating shaft 33 and a connecting plate 34, and the connecting plate 34 is welded with the connecting piece and the stop piece 2 at the same time; the rotating shaft 33 rotates and slides in the waist-shaped hole 41, and the diameter of the rotating shaft 33 is smaller than the width of the waist-shaped hole. When the wheel 11 advances, the stopper 2 is disengaged from the wheel 11; when the wheel 11 is retreated, the wheel 11 presses against the stopper 2, and the wheel 11 is prevented from retreating.

Referring to fig. 3-5, when the wheel 11 advances, the rotating shaft 33 is located at the highest point of the waist-shaped hole 41, at this time, the front end of the bottom plate 21 is tilted, and because the track 12 is formed by splicing, a small step exists, at this time, the front end of the bottom plate 21 is tilted, so that the whole stopper 2 and the wheel 11 walk synchronously. When the wheel 11 retreats, the stopper 2 stays on the rail 12, the rotation shaft 33 slides in the kidney-shaped hole 41, and the wheel 11 and the stopper 2 move relatively.

Referring to fig. 3 to 5, the connecting rod 3 includes a screw bush 32, screws 31 screwed in the screw bush 32, and the screws 31 are opposite in screw thread; the screw 31 relatively moves in the screw housing 32 by rotating the screw housing 32. The length of the purpose adjusting connecting rod 3 is set, the distance between the stop piece 2 and the wheel 11 needs to be controlled in the running process of the wheel 11 due to the difference of the sizes of the wheels 11, and at the moment, the position relationship between the stop piece 2 and the wheel 11 is further adjusted by adjusting the length of the connecting rod 3, so that the stop piece 2 can synchronously run with the wheel 11, and the stop function is met.

The implementation principle of the embodiment is as follows: through mounting 4 and connecting rod 3 for stopper 2 can only advance and can not the synchronous back with wheel 11, thereby ensure that stopper 2 is located the wheel 11 rear end in real time, and wheel 11 is contradicted immediately on stopper 2 after the back, plays the effect of preventing the platform truck slide slope.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims (4)

1. The utility model provides a shield constructs supporting platform truck in back and prevents swift current slope device which characterized in that: the device comprises a stop piece (2) arranged on a track (12), a fixing piece (4) arranged on a wheel (11) device and a connecting rod (3) connected between the stop piece (2) and the fixing piece (4), wherein the stop piece (2) comprises a bottom plate (21) arranged on the track (12) and a baffle plate (22) fixed on the bottom plate (21), a waist-shaped hole (41) is formed in the fixing piece (4) along the length direction of the track (12), one end of the connecting rod (3) is fixed with a rotating shaft (33), the other end of the connecting rod is fixed with the stop piece (2), and the rotating shaft (33) slides and rotates to be arranged in the waist-shaped hole (41);

when the wheels (11) walk, the rotating shaft (33) slides to one end of the waist-shaped hole (41), and the bottom plate (21) is separated from the wheels (11); when the wheels (11) walk backwards, the bottom plate (21) is not moved, the rotating shaft (33) slides in the waist-shaped holes (41), and the wheels (11) press on the bottom plate (21) and lean against the baffle plate (22).

2. The slip-preventing device for a rear supporting trolley of a shield tunneling machine according to claim 1, wherein: the connecting rod (3) comprises a thread sleeve (32) and screw rods (31) which are in threaded connection with the thread sleeve (32), wherein the threads of the two screw rods (31) are opposite threads; and rotating the thread sleeve (32), and relatively moving the screw rod (31) in the thread sleeve (32).

3. The slip-preventing device for a rear supporting trolley of a shield tunneling machine according to claim 1, wherein: the waist-shaped hole (41) is arranged downwards from one end close to the connecting rod (3) to the other end in an inclined mode, when the rotating shaft (33) is located at one end of a high position, the bottom plate (21) is separated from the wheel (11), and one end, close to the wheel (11), of the bottom plate (21) is separated from the track (12).

4. The slip-preventing device for a rear supporting trolley of a shield tunneling machine according to claim 1, wherein: and a limiting plate (23) clamped on the track (12) is fixed on the lower surface of the bottom plate (21).