A layer spacing adjustment mechanism and layer spacing measurement method for a double-layer component

Abstract

The present invention relates to the field of tunnel support structures, and specifically to a double-layer component interlayer spacing adjustment mechanism and interlayer spacing measurement method. The interlayer spacing adjustment mechanism includes: an inner layer component connector, a support frame, an outer layer component connector, a guide mechanism, and a linear drive. The support frame is fixedly connected to the inner layer component connector, and the outer layer component connector is movably connected to the support frame. The guide mechanism includes a guide scale and a guide sleeve. The guide scale is fixedly connected to the support frame, and the guide sleeve is fixedly connected to the outer layer component connector. The guide sleeve is sleeved on the outside of the guide scale. The linear drive drives the outer layer component connector to move along the radial direction of the inner layer component so that a known marker on the guide sleeve points to the scale on the surface of the guide scale. The embodiment of the present invention can infinitely adjust the interlayer spacing between the inner layer component and the outer layer component, and at the same time, the adjusted distance can be observed by an operator, thereby achieving readable adjustment.

Description

Technical Field

[0001] The present invention relates to the field of tunnel support structures, and in particular to a layer spacing adjustment mechanism and a layer spacing measurement method for a double-layer component. Background Art

[0002] In existing tunnel construction technology, the radial distance between the steel arch frame (inner layer component) and the longitudinal reinforcement (outer layer component) is usually fixed or adjusted in stages. This adjustment method has limitations and cannot meet the construction requirements of high precision and continuous adjustment.

[0003] In tunnel reinforcement and support systems, slight changes in the radial distance between inner and outer layer components may seriously affect the safety of the structure and construction efficiency. Traditional radial distance adjustment and measurement methods are complex to operate and have limited accuracy, making it difficult to meet the requirements of modern tunnel construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a layer spacing adjustment mechanism and a layer spacing measurement method for a double-layer component, so as to solve the problem of how to accurately control the radial distance between inner and outer layer components during tunnel construction.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A layer spacing adjustment mechanism for a double-layer component, comprising: an inner layer component connector for connecting the inner layer component; a support frame fixedly connected to the inner layer component connector for providing a support function; an outer layer component connector capable of being movably connected to the support frame along the radial direction of the inner layer component for connecting the outer layer component; a guide mechanism comprising a guide scale and a guide sleeve, the guide scale being fixedly connected to the support frame, the guide sleeve being fixedly connected to the outer layer component connector, the guide sleeve being sleeved on the outside of the guide scale to provide a guide function for the movement of the outer layer component connector; a linear drive fixedly connected to the support frame, the actuator of which is fixedly connected to the outer layer component connector, for driving the outer layer component connector to move along the radial direction of the inner layer component, so that the known marker on the guide sleeve points to the scale on the surface of the guide scale, thereby realizing the readable adjustment of the radial distance between the inner layer component and the outer layer component.

[0007] Furthermore, the support frame includes a base plate, a column, a positioning plate and a support plate, the column is made of channel steel, the base plate is arranged at one end of the outer side of the column, the positioning plate and the support plate are arranged at both ends of the inner side of the column, the base plate is fixedly connected to the column and the inner layer component connector, the linear drive and the guide scale are both fixedly connected to the positioning plate, and a through hole is provided on the support plate for the actuator of the linear drive and the guide sleeve to pass through, the actuator of the linear drive and the guide sleeve can both move through the support plate, and the outer layer component connector is located on the side of the support plate away from the positioning plate.

[0008] Furthermore, the linear drive is an electric push rod, the guide scale is a square rod, the guide sleeve is a square tube, and the scale is engraved on the visible surface of the guide scale.

[0009] Furthermore, the inner layer component is a steel arch frame, and the inner layer component connector is a rail car, and the rail car is used to move forward and backward along the steel arch frame.

[0010] Furthermore, the rail car includes a car body and at least two pairs of wheels, the wheels are rotatably arranged under the car body, the two pairs of wheels extend from both sides of the web of the steel arch frame to between the two wing plates of the steel arch frame, so that the rail car rides on the steel arch frame, and the car body is fixedly connected to the support frame.

[0011] Furthermore, the outer layer component is a longitudinal steel bar, and the outer layer component connector is a steel bar positioner, and the steel bar positioner is used to connect and position the longitudinal steel bar.

[0012] Furthermore, the steel bar positioner includes a positioning sleeve and a connecting piece, the positioning sleeve is used to fix the longitudinal steel bar, and the connecting piece is used to connect the positioning sleeve and the guide sleeve.

[0013] Furthermore, the connecting member includes a sling, a steering member, a bolt and a lifting ring, wherein the sling, the steering member and the bolt are an integral part, the sling and the bolt are perpendicular to each other, the sling is fixedly connected to one of the guide sleeves, the lifting ring is fixedly connected to the other guide sleeve, and the bolt passes through the actuator of the linear drive and the lifting ring in sequence, so that the actuator of the linear drive and the two guide sleeves are connected as one.

[0014] Furthermore, the positioning sleeve includes a coaxially connected steel bar positioning section and a threaded connection section. The steel bar positioning section is a fan-shaped sheet for providing support and positioning functions for the longitudinal steel bars. The threaded connection section is a sleeve with an internal thread for connecting the bolt.

[0015] A method for measuring the interlayer distance of an interlayer distance adjustment mechanism of a double-layer component is provided. The method is performed using the interlayer distance adjustment mechanism and comprises the following steps: Step 1: pre-installing the inner layer component connector on the inner layer component and installing the outer layer component on the outer layer component connector; Step 2: starting the linear drive to drive the outer layer component connector to move radially, while observing the scale pointed to by the known marker, and then calculating the interlayer distance of the double-layer component based on the reading.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] Provided are a layer spacing adjustment mechanism and a layer spacing measurement method for a double-layer component. The embodiments of the present invention can infinitely adjust the layer spacing between an inner layer component and an outer layer component, while allowing an operator to observe the adjusted distance, thereby achieving readable adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0019] Figure 1 A front view of an embodiment of the present invention;

[0020] Figure 2 A front view of a partial structure of a steel bar locator according to an embodiment of the present invention;

[0021] Figure 3 This is a front view of a spreader, a steering member, and a bolt according to an embodiment of the present invention. The solid lines in the figure are outer contours, and the dotted lines in the figure are threads.

[0022] Figure 4 This is a front view of a lifting ring according to an embodiment of the present invention, wherein the solid line in the figure is the outer contour of the lifting ring, and the dotted line in the figure is the inner contour of the lifting ring;

[0023] The numbers in the figure represent the following:

[0024] 1-steel arch frame; 11-web plate; 12-wing plate; 2-rail car; 21-car body; 22-wheel; 3-support frame; 31-base plate; 32-column; 33-positioning plate; 34-support plate; 4-rebar locator; 41-positioning sleeve; 411-rebar positioning section; 412-threaded connection section; 42-connector; 421-spreader; 422-steering member; 423-bolt; 424-lifting ring; 5-guide mechanism; 51-guide scale; 511-scale; 52-guide sleeve; 521-known marker; 6-linear drive. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The purpose of the present invention is to provide a layer spacing adjustment mechanism and a layer spacing measurement method for double-layer components. This embodiment takes the steel arch frame 1 (inner layer component) and longitudinal steel bars (outer layer component) of a tunnel as an example to illustrate how the layer spacing adjustment mechanism solves the problem of continuously and accurately adjusting and measuring the radial distance between the inner and outer layer components. Another purpose is to provide an easy-to-operate and high-precision layer spacing measurement method to meet the demand for precise control of the radial distance between the inner and outer layer components during tunnel construction, thereby improving construction quality and efficiency.

[0027] Combine Figure 1 , the layer spacing adjustment mechanism includes:

[0028] The rail car 2 is used to move forward and backward along the steel arch 1;

[0029] The support frame 3 is fixedly connected to the rail car 2 and is used to provide a support function;

[0030] A steel bar positioner 4 is movably connected to the support frame 3 along the radial direction of the steel arch 1 and is used to connect and position the longitudinal steel bars;

[0031] The guide mechanism 5 includes a guide scale 51 and a guide sleeve 52. The guide scale 51 is fixedly connected to the support frame 3, and the guide sleeve 52 is fixedly connected to the steel bar locator 4. The guide sleeve 52 is sleeved on the outside of the guide scale 51 to provide a guide function for the movement of the steel bar locator 4.

[0032] The linear drive 6 is fixedly connected to the support frame 3, and its actuator is fixedly connected to the steel bar locator 4, which is used to drive the steel bar locator 4 to move along the radial direction of the steel arch frame 1, so that the known marker 521 on the guide sleeve 52 points to the scale 511 on the surface of the guide scale 51, thereby realizing the readable adjustment of the radial distance between the steel arch frame 1 and the longitudinal steel bar.

[0033] When the radial distance between the steel arch 1 and the longitudinal reinforcement of the tunnel needs to be adjusted, the operation process of the layer distance measurement method is as follows:

[0034] Step 1: Pre-install the rail car 2 on the steel arch 1, install the longitudinal steel bars on the steel bar positioner 4, and move the rail car 2 along the steel arch 1 to move the longitudinal steel bars to a predetermined position.

[0035] Step 2: Start the linear drive 6 to drive the steel bar positioner 4 to move radially, while observing the scale 511 pointed by the known marker 521 to achieve precise movement of the longitudinal steel bar in the radial direction.

[0036] Specifically, in the above embodiment:

[0037] The guide scale 51 is a square rod, the guide sleeve 52 is a square tube, and the scale 511 is engraved on the visible surface of the guide scale 51 for easy reading by the operator. The known marker 521 on the guide sleeve 52 refers to the end of the guide sleeve 52. The known marker 521 points to the scale 511 on the surface of the guide scale 51, which means that the end face of the guide sleeve 52 and the scale 511 overlap.

[0038] The rail car 2 includes a body 21 and at least two pairs of wheels 22. The wheels 22 are rotatably arranged under the body 21. The two pairs of wheels 22 extend from both sides of the web 11 of the steel arch frame 1 to between the two flanges 12 of the steel arch frame 1, so that the rail car 2 rides on the steel arch frame 1. The body 21 of the rail car 2 is fixedly connected to the support frame 3, which is a stable mobile platform for the layer spacing adjustment mechanism.

[0039] The support frame 3 includes a base plate 31, a column 32, a positioning plate 33 and a support plate 34. The column 32 is made of channel steel. The base plate 31 is arranged at one end of the outer side of the column 32, and the positioning plate 33 and the support plate 34 are arranged at both ends of the inner side of the column 32. The base plate 31 is fixedly connected to the column 32 and the body 21 of the rail car 2. The linear drive 6 and the guide scale 51 are both fixedly connected to the positioning plate 33. The support plate 34 is provided with a through hole for the actuator and the guide sleeve 52 of the linear drive 6 to pass through. The actuator and the guide sleeve 52 of the linear drive 6 can both move through the support plate 34. The steel bar locator 4 is located on the side of the support plate 34 away from the positioning plate 33.

[0040] The steel bar positioner 4 includes a positioning sleeve 41 and a connecting piece 42 . The positioning sleeve 41 is used to fix the longitudinal steel bars, and the connecting piece 42 is used to connect the positioning sleeve 41 and the guide sleeve 52 .

[0041] The connecting part 42 includes a sling 421, a steering part 422, a bolt 423 and a lifting ring 424, wherein the sling 421, the steering part 422 and the bolt 423 are an integrated part, the sling 421 and the bolt 423 are perpendicular to each other, the sling 421 is fixedly connected to one guide sleeve 52, the lifting ring 424 is fixedly connected to the other guide sleeve 52, and the bolt 423 passes through the actuator of the linear drive 6 and the lifting ring 424 in sequence, so that the actuator of the linear drive 6 and the two guide sleeves 52 are connected as one.

[0042] The positioning sleeve 41 includes a coaxially connected steel bar positioning section 411 and a threaded connection section 412 . The steel bar positioning section 411 is a fan-shaped sheet used to provide support and positioning functions for the longitudinal steel bars. The threaded connection section 412 is a sleeve with internal threads used to connect the bolts 423 .

[0043] The linear drive 6 adopts an electric push rod, and the body of the electric push rod is fixed on the positioning plate 33 by bolts, nuts and washers.

[0044] The steel arch frame 1 and the longitudinal reinforcement in this embodiment are examples of inner and outer layer components. This embodiment is not limited to application to the steel arch frame 1 and the longitudinal reinforcement. It is only necessary to replace the rail car 2 with other inner layer component connectors and replace the reinforcement positioner 4 with other outer layer component connectors to make the layer spacing adjustment mechanism applicable to other double-layer components.

[0045] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the embodiments of the present invention.

Claims

1. A layer spacing adjustment mechanism for a double-layer component, characterized in that: include: Inner layer component connector, used for connecting inner layer components; A support frame (3) fixedly connected to the inner layer component connector; An outer layer component connector, capable of being movably connected to the support frame (3) along the radial direction of the inner layer component, and used for connecting the outer layer component; A guide mechanism (5) comprising a guide scale (51) and a guide sleeve (52), wherein the guide scale (51) is fixedly connected to the support frame (3), and the guide sleeve (52) is fixedly connected to the outer component connector, and the guide sleeve (52) is sleeved on the outside of the guide scale (51) to provide a guide function for the movement of the outer component connector; a linear drive (6) fixedly connected to the support frame (3), wherein the actuator is fixedly connected to the outer layer component connector and is used to drive the outer layer component connector to move along the radial direction of the inner layer component so that the known marker (521) on the guide sleeve (52) points to the scale (511) on the surface of the guide scale (51); The support frame (3) comprises a base plate (31), a column (32), a positioning plate (33) and a support plate (34), wherein the base plate (31) is arranged at one end outside the column (32), the positioning plate (33) and the support plate (34) are arranged at two ends inside the column (32), the base plate (31) is fixedly connected to the column (32) and the inner layer component connector, the linear drive (6) and the guide scale (51) are both fixedly connected to the positioning plate (33), the support plate (34) is provided with a through hole for the actuator of the linear drive (6) and the guide sleeve (52) to pass through, the actuator of the linear drive (6) and the guide sleeve (52) are both able to move through the support plate (34), and the outer layer component connector is located on a side of the support plate (34) away from the positioning plate (33); The outer layer component is a longitudinal steel bar, and the outer layer component connector is a steel bar positioner (4), and the steel bar positioner (4) is used to connect and position the longitudinal steel bar; The steel bar positioner (4) comprises a positioning sleeve (41) and a connecting piece (42), wherein the positioning sleeve (41) is used to fix the longitudinal steel bar, and the connecting piece (42) is used to connect the positioning sleeve (41) and the guide sleeve (52); The connecting member (42) includes a sling (421), a steering member (422), a bolt (423) and a lifting ring (424), wherein the sling (421), the steering member (422) and the bolt (423) are an integral part, the sling (421) and the bolt (423) are perpendicular to each other, the sling (421) is fixedly connected to one of the guide sleeves (52), the lifting ring (424) is fixedly connected to the other guide sleeve (52), and the bolt (423) passes through the actuator of the linear drive (6) and the lifting ring (424) in sequence, so that the actuator of the linear drive (6) and the two guide sleeves (52) are connected as one.

2. A layer spacing adjustment mechanism for a double-layer component according to claim 1, characterized in that: The linear drive (6) is an electric push rod, the guide scale (51) is a square rod, the guide sleeve (52) is a square tube, and the scale (511) is engraved on the visible surface of the guide scale (51).

3. The layer spacing adjustment mechanism of a double-layer component according to claim 1, characterized in that: The inner layer component is a steel arch frame (1), the inner layer component connector is a rail car (2), and the rail car (2) is used to advance and retreat along the steel arch frame (1).

4. The layer spacing adjustment mechanism of a double-layer component according to claim 3, characterized in that: The rail vehicle (2) comprises a vehicle body (21) and at least two pairs of wheels (22), wherein the wheels (22) are rotatably arranged below the vehicle body (21), and the two pairs of wheels (22) extend from both sides of the web (11) of the steel arch frame (1) to between the two wing plates (12) of the steel arch frame (1), so that the rail vehicle (2) rides on the steel arch frame (1) and travels, and the vehicle body (21) is fixedly connected to the support frame (3).

5. The layer spacing adjustment mechanism of a double-layer component according to claim 4, characterized in that: The positioning sleeve (41) comprises a coaxially connected steel bar positioning section (411) and a threaded connection section (412); the steel bar positioning section (411) is a fan-shaped sheet body used to provide support and positioning functions for the longitudinal steel bars; the threaded connection section (412) is a sleeve with an internal thread used to connect the bolt (423).

6. A method for measuring the interlayer distance of an interlayer distance adjustment mechanism of a double-layer component, characterized in that: The layer distance measurement method is performed using the layer distance adjustment mechanism according to claim 1, and the layer distance measurement method comprises the following steps: Step 1: pre-install the inner layer component connector on the inner layer component, and install the outer layer component on the outer layer component connector; Step 2: Start the linear drive (6) to drive the outer layer component connector to move radially, while observing the scale (511) pointed by the known marker (521), and then calculate the layer distance of the double-layer component based on the reading.

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