Segment crane positioning device

Abstract

The utility model discloses a segment crane positioning device, which is characterized in that the movement distance of a movable frame is calculated more accurately through the arrangement of a tooth groove and a gear, a certain resistance can be provided through the meshing effect when the movable frame stops, the sliding risk is reduced, and the movable frame can be pressed through a pressing structure and an anti-sliding mechanism. When the moving frame stops suddenly, resistance is provided for the moving frame after the moving frame stops suddenly, so that the moving wheels are prevented from sliding, and meanwhile the position can be locked.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe segment cranes, in particular to a pipe segment crane positioning device. Background Art

[0002] The segment crane is a lifting device inside the shield machine that is responsible for lifting the segments. The segment crane moves along the track to transfer and transport the segments and stops when it reaches the designated position.

[0003] The existing segment crane needs to use a positioning device when it stops. The moving distance is identified by an absolute encoder set at the running wheel. The position of the segment crane is obtained by the number of rotations of the shaft on which the running wheel is installed. However, when braking, the crane running wheel will slip slightly on the track, which can easily lead to inaccurate positioning. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a segment crane positioning device, which adopts the technical solution of comprising an H-shaped track, a moving frame, a connecting box, a moving wheel, a lifting mechanism, a driving motor, an encoder, a track mounting plate, a tooth groove, a gear, a pressing structure and an anti-skid mechanism; the H-shaped track is two on the left and right, and the moving frames are also two on the left and right, both of which are placed in coordination with the H-shaped track, a connecting box is fixed between the moving frames on the left and right sides, a moving wheel is rotatably installed in the moving frame, which is driven by a motor in the connecting box, and is in contact with and supported by the bottom of the upper groove of the H-shaped track, a driving motor is installed on the moving frame to drive the lifting mechanism below, and the outer wall of the H-shaped track is integrally formed with a track mounting plate, through which Connected to the supporting structure, the supporting structure here is a common vertical frame or mounting frame, an encoder is installed on the mobile frame on the right, a tooth groove is arranged on the track mounting plate on the right, a gear is installed on the outer rotation of the mobile frame on the right, the gear is meshed with the tooth groove, and the gear shaft on which the gear is installed is connected to the encoder, that is, in the process of movement of the mobile frame, the position is determined by the number of rotations of the gear shaft where the gear is located, which is more accurate, and the meshing of the gear and the tooth groove is helpful to reduce the risk of the moving wheel sliding in the upper groove of the H-shaped track, and a pressing structure and an anti-skid mechanism are arranged on the mobile frame on the left, and the setting of the anti-skid mechanism and the pressing structure enables the mobile frame to stop stably when it stops in an emergency, and avoids the phenomenon of sliding after the moving wheel is locked.

[0005] As a preferred technical solution of the utility model, the pressing structure includes an electric push rod and a top pressure plate. The electric push rod is fixedly installed on the top of the left movable frame. The top pressure plate is fixed on the output end of the electric push rod. The electric push rod is powered by a battery and electrically connected to the encoder. The top pressure plate is made of rigid material.

[0006] As an optimal technical solution of the utility model, the anti-skid mechanism includes a wing plate, a front shaft body, a rear shaft body, a cross-sectional trapezoidal block, a spring and a groove. The left wall of the left movable frame is an integrally formed wing plate, and the wing plate is provided with two through holes, the front shaft body and the rear shaft body pass through the through holes, and the lower end is fixedly connected to the cross-sectional trapezoidal block, and a spring is connected between the cross-sectional trapezoidal block and the wing plate, and the whole is sleeved outside the front shaft body, and grooves are evenly distributed on the left track mounting plate. When the movable frame moves along the H-shaped track, the cross-sectional trapezoidal block will continuously extend to and leave the groove under the action of the spring. This process can provide a certain blocking force when the movable frame is to stop, so that it will not slide easily. When the movable frame stops, the pressing structure is enabled at the same time to press the top pressing plate down, press the front shaft body to move the cross-sectional trapezoidal block down, so that it is pressed against the upper surface of the track mounting plate to achieve locking. If the cross-sectional trapezoidal block corresponds to the position of the groove at this time, it is pushed in the groove to achieve better position locking, and the electric push rod can be reset when moving again.

[0007] As a preferred technical solution of the utility model, the interface between the trapezoidal block and the groove is an isosceles trapezoid, which is wide at the top and narrow at the bottom, and the hypotenuses are parallel to each other.

[0008] As a preferred technical solution of the utility model, the inclined surface of the trapezoidal block is coated with a layer of smooth material.

[0009] The beneficial effects of the utility model are as follows: the calculation of the moving distance of the mobile frame is more accurate through the arrangement of the tooth grooves and the gears, and a certain resistance can be provided when the mobile frame stops through the meshing action to reduce the risk of sliding, and the pressing structure and the anti-skid mechanism can provide resistance after the mobile frame stops suddenly to prevent the moving wheels from sliding, and the position can be locked at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is the front view of the utility model;

[0012] Figure 3 It is a schematic diagram of the left structure of the utility model.

[0013] In the figure: H-shaped track 1, moving frame 2, connecting box 3, moving wheel 31, lifting mechanism 4, driving motor 5, encoder 9, track mounting plate 6, tooth groove 7, gear 8, gear 9, electric push rod 10, top pressure plate 11, wing plate 12, front shaft 13, rear shaft 14, cross-section trapezoidal block 15, spring 16, groove 17. DETAILED DESCRIPTION

[0014] Example 1

[0015] like Figures 1 to 3As shown, the utility model discloses a segment crane positioning device, which adopts a technical solution including an H-shaped track 1, a moving frame 2, a connecting box 3, a moving wheel 31, a lifting mechanism 4, a driving motor 5, an encoder 9, a track mounting plate 6, a tooth groove 7, a gear 8, a pressing structure and an anti-skid mechanism. The H-shaped track 1 is divided into two left and right tracks, and the moving frames 2 are also divided into two left and right tracks, which are both placed in coordination with the H-shaped track 1. A connecting box 3 is fixed between the moving frames 2 on the left and right sides, and a moving wheel 31 is rotatably installed in the moving frame 2, which is driven by an electric motor in the connecting box 3. The machine is driven, and it contacts and supports the bottom of the upper groove of the H-shaped track 1. A driving motor 5 is installed on the mobile frame 2 to drive the lifting mechanism 4 below. The outer wall of the H-shaped track 1 is integrally formed with a track mounting plate 6, which is connected to the supporting structure. An encoder 9 is installed on the right mobile frame 2, and a tooth groove 7 is provided on the right track mounting plate 6. A gear 8 is installed on the outer rotation of the right mobile frame 2, and the gear 8 is meshed with the tooth groove 7. The gear shaft on which the gear 8 is installed is connected to the encoder 9. A pressing structure and an anti-slip mechanism are provided on the left mobile frame 2.

[0016] As a preferred technical solution of the utility model, the pressing structure includes an electric push rod 10 and a top pressure plate 11. The electric push rod 10 is fixedly installed on the top of the left movable frame 2. The top pressure plate 11 is fixed on the output end of the electric push rod 10. The electric push rod 10 is powered by a battery and is electrically connected to the encoder 9. The top pressure plate 11 is made of rigid material.

[0017] As a preferred technical solution of the utility model, the anti-slip mechanism includes a wing plate 12, a front shaft 13, a rear shaft 14, a cross-sectional trapezoidal block 15, a spring 16 and a groove 17. The left side wall of the left movable frame 2 is integrally formed with the wing plate 12. The wing plate 12 has two through holes. The front shaft 13 and the rear shaft 14 pass through the through holes. The lower ends are fixedly connected to the cross-sectional trapezoidal block 15. A spring 16 is connected between the cross-sectional trapezoidal block 15 and the wing plate 12, and the whole is sleeved outside the front shaft 13.

[0018] As a preferred technical solution of the utility model, the interface between the trapezoidal block 15 and the groove 17 is an isosceles trapezoid, which is wide at the top and narrow at the bottom, and the hypotenuses are parallel to each other.

[0019] As a preferred technical solution of the utility model, the inclined surface of the trapezoidal block 15 is coated with a layer of smooth material.

[0020] The working principle of the utility model: when in use, the position is determined by the number of rotations of the gear shaft where the gear 9 is located, which is more accurate, and the meshing of the gear 9 and the tooth groove 7 is arranged to reduce the risk of the moving wheel 31 sliding in the upper groove of the H-shaped track 1. When the moving frame 2 moves along the H-shaped track 1, the cross-sectional trapezoidal block 15 will continuously extend to the groove 17 and leave the groove 17 under the action of the spring 16. This process can provide a certain blocking force when the moving frame 2 is to stop, so that it will not slide easily. When the moving frame stops, the pressing structure is enabled at the same time to press the top pressure plate 11 downward, and the front side shaft 13 is pressed to move the cross-sectional trapezoidal block 15 downward, so that it is pressed against the upper surface of the track mounting plate 6 to achieve locking. If the cross-sectional trapezoidal block 15 corresponds to the position of the groove 17 at this time, it will bounce into the groove 17 under the action of the spring 16 to achieve better position locking, and the electric push rod 10 can be reset when moving again.

[0021] Components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A segment crane positioning device, comprising an H-shaped track (1), a moving frame (2), a connecting box (3), a moving wheel (31), a lifting mechanism (4), a driving motor (5) and an encoder (9), characterized in that: The invention comprises a track mounting plate (6), a tooth groove (7), a gear (8), a pressing structure and an anti-slip mechanism; the H-shaped track (1) is divided into two on the left and right sides, and the moving frame (2) is also divided into two on the left and right sides, and both are placed in cooperation with the H-shaped track (1); a connecting box (3) is fixed between the moving frames (2) on the left and right sides; a moving wheel (31) is rotatably mounted in the moving frame (2), which is driven by a motor in the connecting box (3) and is in contact with and supported by the bottom of the upper groove of the H-shaped track (1); a driving motor (5) is installed on the moving frame (2) to rotate the moving wheel (31) on the lower side of the moving frame (2); The lifting mechanism (4) on the right side is used for driving; the outer wall of the H-shaped track (1) is integrally formed with a track mounting plate (6), which is connected to the supporting structure through the track mounting plate; an encoder (9) is installed on the right side of the moving frame (2); a tooth groove (7) is provided on the right side of the track mounting plate (6); a gear (8) is installed on the outer rotation of the right side of the moving frame (2), the gear (8) is meshed with the tooth groove (7), and the gear shaft on which the gear (8) is installed is connected to the encoder (9); a pressing structure and an anti-slip mechanism are provided on the left side of the moving frame (2).

2. A segment crane positioning device according to claim 1, characterized in that: The pressing structure comprises an electric push rod (10) and a top pressing plate (11); the electric push rod (10) is fixedly mounted on the top of the left movable frame (2); and the top pressing plate (11) is fixed on the output end of the electric push rod (10).

3. A segment crane positioning device according to claim 2, characterized in that: The electric push rod (10) is powered by a battery and is electrically connected to the encoder (9); the top pressing plate (11) is made of a rigid material.

4. A segment crane positioning device according to claim 1, characterized in that: The anti-slip mechanism comprises a wing plate (12), a front shaft body (13), a rear shaft body (14), a cross-sectional trapezoidal block (15), a spring (16) and a groove (17); the grooves (17) are evenly distributed on the left track mounting plate (6); the left side wall of the left side moving frame (2) is integrally formed with a wing plate (12); two through holes are opened on the wing plate (12); the front shaft body (13) and the rear shaft body (14) pass through the through holes, and the lower ends are fixedly connected to the cross-sectional trapezoidal block (15); a spring (16) is connected between the cross-sectional trapezoidal block (15) and the wing plate (12), and the spring (16) is integrally sleeved outside the front shaft body (13).

5. A segment crane positioning device according to claim 4, characterized in that: The interfaces of the trapezoidal block (15) and the groove (17) are both isosceles trapezoidal, wider at the top and narrower at the bottom, and the hypotenuses are parallel to each other.

6. A segment crane positioning device according to claim 5, characterized in that: The inclined surface of the trapezoidal-section block (15) is coated with a layer of smooth material.

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