Device for measuring abrasion loss of helical blade of shield tunneling machine

Abstract

A shield tunneling machine spiral blade abrasion loss measuring device comprises a bottom plate, a vertical supporting rod, a transverse support and a distance measuring sensor, the bottom plate is used for being attached to a spiral shaft, the vertical supporting rod is arranged on the bottom plate, the transverse support is arranged on the vertical supporting rod in the mode that the vertical position is adjustable, and the distance measuring sensor is arranged on the transverse support. The distance measuring sensor is arranged on the transverse support in a transverse position adjustable mode, and the distance measuring sensor is used for measuring the vertical distance between the distance measuring sensor and a measured object. According to the utility model, through the arrangement of the bottom frame, the transverse support and the vertical support rod, the distance measuring sensor can be stably arranged on the spiral shaft for measurement, the distance measuring sensor can effectively reduce the measurement error of the abrasion loss of the spiral blade and improve the measurement accuracy, in addition, the distance measuring sensor can realize the vertical and transverse position adjustment, and the measurement accuracy is improved. The device is simple in structure, high in flexibility and simple and convenient to operate, and can be quickly adjusted at each position of the spiral shaft to quickly measure the abrasion loss of the spiral blades at different positions, so that the measurement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical fields of shield machine manufacturing, maintenance and construction, in particular to a measuring device for the wear amount of the spiral blade of a shield machine. Background Technique

[0002] In the current construction of traffic tunnels and water conservancy tunnels, most tunnel construction uses shield machines for tunneling, which is a common construction method for underground tunneling. During shield construction, it is necessary to convey muck from the soil bin through a screw conveyor. During the process of the shield machine screw conveyor discharging muck, due to the continuous friction and collision between the muck and the hard objects in the muck and the spiral blade of the screw conveyor, the spiral blade will be worn after long-term use. Therefore, the spiral blade needs to be inspected and repaired after leaving the tunnel.

[0003] At present, during the inspection and repair process, the wear amount of the spiral blade is usually indirectly measured by using a combination of a right-angle ruler and a tape measure. Since the spiral shaft is cylindrical and the wear amounts of the spiral blades are different, the right-angle ruler measurement is likely to cause large data errors, which will result in large size deviations of the repaired spiral blades, causing rotation jamming of the screw conveyor or unqualified muck output, affecting the construction progress. Therefore, how to accurately measure the wear amount of the spiral blade is a technical problem that needs to be urgently solved by those skilled in the art. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a measuring device for the wear amount of the spiral blade of a shield machine, which can effectively reduce the measurement error of the wear amount of the spiral blade and improve the measurement efficiency.

[0005] In order to achieve the above object, the technical solution adopted by the utility model is: a measuring device for the wear amount of the spiral blade of a shield machine is provided, which includes a bottom plate, a vertical support rod, a horizontal bracket and a ranging sensor. The bottom plate is used to fit on the spiral shaft. The vertical support rod is arranged on the bottom plate. The horizontal bracket is vertically adjustably arranged on the vertical support rod. The ranging sensor is horizontally adjustably arranged on the horizontal bracket. The ranging sensor is used to measure the vertical distance from the measured object.

[0006] As a further improvement of the utility model, the bottom plate is an arc-shaped structure matching the diameter of the spiral shaft.

[0007] As a further improvement of the utility model, the vertical support rod is vertically arranged at the middle part of the circumcircle tangent to the bottom plate.

[0008] As a further improvement of the utility model, the vertical support rod is a lead screw, and an adjusting nut is threadedly connected to the vertical support rod. The horizontal bracket is vertically adjustably arranged on the vertical support rod through the adjusting nut.

[0009] As a further improvement of the present utility model, the adjusting nut includes a fastening nut and a vertical adjusting nut. An opening is provided on the transverse bracket, and the transverse bracket is penetrated through the vertical rod through the opening. The fastening nut and the vertical adjusting nut respectively press against the upper and lower sides of the transverse bracket to clamp the transverse bracket on the vertical rod.

[0010] As a further improvement of the present utility model, the transverse bracket is perpendicular to the vertical rod.

[0011] As a further improvement of the present utility model, a transverse guide groove is provided on the transverse bracket, and the distance measuring sensor is arranged on the transverse bracket through the transverse guide groove in a horizontally position-adjustable manner.

[0012] As a further improvement of the present utility model, it further includes a transverse adjusting nut. A threaded column is provided on the distance measuring sensor. After the threaded column passes through the transverse guide groove, it is threadedly connected with the transverse adjusting nut so that the distance measuring sensor is installed on the transverse bracket.

[0013] As a further improvement of the present utility model, the distance measuring sensor is a macro digital display sensor.

[0014] The beneficial effects of the present utility model are as follows: In the present utility model, through the settings of the chassis, the transverse bracket and the vertical rod, the distance measuring sensor can be stably arranged on the spiral shaft for measurement. By using the distance measuring sensor to measure the wear amount of the spiral blade, the measurement error of the wear amount of the spiral blade can be effectively reduced, and the measurement accuracy can be improved. In addition, the distance measuring sensor can realize vertical and horizontal position adjustment, with strong flexibility, simple and convenient operation, and can be quickly adjusted at various positions of the spiral shaft to quickly measure the wear amount of the spiral blades at different positions, thereby improving the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic plan view of the device of the present utility model;

[0016] Figure 2 It is a schematic three-dimensional view of the device of the present utility model;

[0017] Figure 3 It is a schematic view of the use state of the device of the present utility model;

[0018] Marking description: bottom plate 1, vertical rod 2, transverse bracket 3, transverse guide groove 31, distance measuring sensor 4, spiral shaft 5, spiral blade 51, fastening nut 6, vertical adjusting nut 7, transverse adjusting nut 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0020] As shown Figures 1-3 in the figure, a measuring device for the wear amount of the spiral blade of a shield machine includes a bottom plate 1, a vertical support rod 2, a horizontal bracket 3, and a ranging sensor 4.

[0021] The bottom plate 1 is an arc-shaped structure matching the diameter of the spiral shaft 5 and is used to fit on the spiral shaft 5.

[0022] The vertical support rod 2 is a lead screw. The vertical support rod 2 is vertically arranged at the center of the circumcircle of the bottom plate 1.

[0023] The horizontal bracket 3 is vertically arranged on the vertical support rod 2. An adjusting nut is connected to the vertical support rod 2 by threads, and the vertical position of the horizontal bracket 3 can be adjusted through the adjusting nut. Specifically, an opening is provided on the horizontal bracket 3, and the horizontal bracket 3 is passed through the vertical support rod 2 through the opening. The adjusting nut includes a fastening nut 6 and a vertical adjusting nut 7. The fastening nut 6 and the vertical adjusting nut 7 respectively press on the upper and lower sides of the horizontal bracket 3. By turning the vertical adjusting nut 7 to adjust the vertical position of the horizontal bracket 3, and then tightening the fastening nut 6 and the vertical adjusting nut 7, the horizontal bracket 3 is clamped on the vertical support rod 2 by the fastening nut 6 and the vertical adjusting nut 7.

[0024] The ranging sensor 4 is a macro digital display sensor. The ranging sensor 4 is arranged on the horizontal bracket 3 and is used to measure the vertical distance from the measured object, which refers to the spiral shaft 5 and the spiral blade 51. A horizontal guide groove 31 is provided on the horizontal bracket 3, and the ranging sensor 4 can be adjusted horizontally through the horizontal guide groove 31. Specifically, a threaded post is provided on the ranging sensor 4. After the threaded post passes through the horizontal guide groove 31, it is threadedly connected to the horizontal adjusting nut 8. The ranging sensor 4 moves along the horizontal guide groove 31 to achieve horizontal position adjustment, and then the ranging sensor 4 is installed on the horizontal bracket 3 by tightening the horizontal adjusting nut 8.

[0025] The usage steps of this device are as follows:

[0026] 1. When in use, first fit the bottom plate 1 on the spiral shaft 5; then adjust the vertical position of the horizontal bracket 3 through the fastening nut 6 and the vertical adjusting nut 7 so that the position of the horizontal bracket 3 is higher than the position of the spiral blade 51; at the same time, adjust the horizontal position of the ranging sensor 4 through the horizontal adjusting nut 8 so that the ranging sensor 4 is located above the spiral shaft 5, and measure the distance H1 from the ranging sensor 4 to the spiral shaft 5;

[0027] 2. After measuring the distance H1, adjust the position of the ranging sensor 4 so that the ranging sensor 4 is located above the spiral blade 51, measure the distance H2 from the ranging sensor 4 to the spiral blade 51, and subtracting H2 from H1 can obtain the actual height of the spiral blade 51.

[0028] Repeat the above steps one and two to measure the actual measured height of each spiral blade 51. According to the shield machine technical specification, compare the actual measured height of the spiral blade 51 to clearly record the actual wear amount of each spiral blade 51. Finally, weld wear-resistant blocks or surfacing wear-resistant welding wires according to the wear amounts of different spiral blades 51 to meet the dimensional requirements of the shield machine technical specification.

[0029] The above embodiments are only used to conveniently illustrate the present invention and do not impose any formal restrictions on the present invention. Any person with ordinary knowledge in the technical field, without departing from the technical features of the present invention, uses the technical content disclosed by the present invention to make equivalent embodiments with partial changes or modifications, and without departing from the technical feature content of the present invention, still belongs to the scope of the technical features of the present invention.

Claims

1. A measuring device for the wear amount of the spiral blade of a shield machine, characterized in that: It includes a bottom plate, vertical support rods, a horizontal bracket and a distance measuring sensor. The bottom plate is used to fit on the spiral shaft. The vertical support rods are arranged on the bottom plate. The horizontal bracket is vertically adjustably arranged on the vertical support rods. The distance measuring sensor is horizontally adjustably arranged on the horizontal bracket. The distance measuring sensor is used to measure the vertical distance from the measured object.

2. The measuring device for the wear amount of the spiral blade of a shield machine according to claim 1, characterized in that: The bottom plate is an arc-shaped structure matching the diameter of the spiral shaft.

3. The measuring device for the wear amount of the screw blade of a shield machine according to claim 2, characterized in that: The vertical support rods are vertically arranged at the middle of the circumcircle of the bottom plate.

4. A measuring device for the wear amount of the spiral blade of a shield machine according to claim 1, characterized in that: The vertical support rods are screw rods. An adjusting nut is threadedly connected to the vertical support rods. The horizontal bracket is vertically adjustably arranged on the vertical support rods through the adjusting nut.

5. The measuring device for the wear amount of the spiral blade of a shield machine according to claim 4, characterized in that: The adjusting nut includes a fastening nut and a vertical adjusting nut. An opening is provided on the horizontal bracket. The horizontal bracket is passed through the vertical support rods through the opening. The fastening nut and the vertical adjusting nut respectively press against the upper and lower sides of the horizontal bracket to clamp the horizontal bracket on the vertical support rods.

6. The measuring device for the wear amount of the spiral blade of a shield machine according to claim 1, wherein: The horizontal bracket is perpendicular to the vertical support rods.

7. A measuring device for the wear amount of the screw blade of a shield machine according to claim 1, characterized in that: A horizontal guide groove is provided on the horizontal bracket. The distance measuring sensor is horizontally adjustably arranged on the horizontal bracket through the horizontal guide groove.

8. A measuring device for the wear amount of the spiral blade of a shield machine according to claim 7, characterized in that: It further includes a horizontal adjusting nut. A threaded post is provided on the distance measuring sensor. After the threaded post passes through the horizontal guide groove, it is threadedly connected to the horizontal adjusting nut so that the distance measuring sensor is installed on the horizontal bracket.

9. A measuring device for the wear amount of the spiral blade of a shield machine according to claim 1, characterized in that: The distance measuring sensor is a macro digital display sensor.

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