Layer distance adjusting mechanism and layer distance measuring method of double-layer component

Abstract

The invention relates to the field of tunnel supporting structures, in particular to a layer distance adjusting mechanism of a double-layer component and a layer distance measuring method.The layer distance adjusting mechanism comprises an inner-layer component connector, a supporting frame, an outer-layer component connector, a guiding mechanism and a linear driver, and the supporting frame is fixedly connected to the inner-layer component connector; the outer-layer component connector can be movably connected to the supporting frame, the guide mechanism comprises a guide scale and a guide sleeve, the guide scale is fixedly connected to the supporting frame, the guide sleeve is fixedly connected to the outer-layer component connector, and the guide sleeve is connected to the outer side of the guide scale in a sleeving mode; the linear driver drives the outer-layer component connector to move in the radial direction of the inner-layer component, so that the known marker on the guide sleeve points to the scales on the surface of the guide ruler. According to the embodiment of the invention, the layer distance between the inner-layer component and the outer-layer component can be adjusted in a stepless manner, and meanwhile, an operator can observe the adjusted distance, so that readable adjustment is realized.

Description

Technical Field

[0001] The 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 requirements of high-precision and continuously adjustable construction.

[0003] In tunnel reinforcement and support systems, slight changes in the radial distance between inner and outer layer components may seriously affect the safety and construction efficiency of the structure. 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 in tunnel construction.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A layer spacing adjustment mechanism for a double-layer component, comprising: an inner layer component connector, used to connect the inner layer component; a support frame, fixedly connected to the inner layer component connector, used to provide 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, used to connect the outer layer component; a guide mechanism, comprising a guide ruler and a guide sleeve, the guide ruler is fixedly connected to the support frame, the guide sleeve is fixedly connected to the outer layer component connector, the guide sleeve is sleeved on the outside of the guide ruler to provide a guide function for the movement of the outer layer component connector; a linear drive, fixedly connected to the support frame, and its actuator is fixedly connected to the outer layer component connector, used to drive 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 ruler, thereby realizing the readable adjustment of the radial distance between the inner layer component and the outer layer component.

[0006] 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, the support plate is provided with a through hole 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.

[0007] 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.

[0008] 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.

[0009] Furthermore, the rail vehicle includes a body and at least two pairs of wheels, wherein the wheels are rotatably arranged under the body, and the two pairs of wheels extend from both sides of the web of the steel arch frame to between two wing plates of the steel arch frame, respectively, so that the rail vehicle rides on the steel arch frame, and the body is fixedly connected to the support frame.

[0010] 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 bars.

[0011] Furthermore, the steel bar positioner includes a positioning sleeve and a connecting piece, wherein 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.

[0012] Furthermore, the connecting member includes a hanger, a steering member, a bolt and a lifting ring, wherein the hanger, the steering member and the bolt are an integral part, the hanger and the bolt are perpendicular to each other, the hanger 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 a whole.

[0013] 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 body, used to provide support and positioning functions for the longitudinal steel bars, and the threaded connection section is a sleeve with internal threads, used to connect the bolts.

[0014] A method for measuring the interlayer distance of an interlayer distance adjustment mechanism of a double-layer component, wherein the interlayer distance measurement method is performed using the interlayer distance adjustment mechanism, and the method comprises the following steps: step one, 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 two, 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 according to the reading.

[0015] Compared with the prior art, this application has the following beneficial effects: 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, and an operator can observe the adjusted distance at the same time, thereby realizing readable adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a front view of an embodiment of the present invention; Figure 2 A front view of a partial structure of a steel bar locator according to an embodiment of the present invention; Figure 3 It is a front view of a hanger, a steering member and a bolt according to an embodiment of the present invention, wherein the solid lines in the figure are outer contours and the dotted lines in the figure are threads; Figure 4 It is a front view of a lifting ring of 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; The numbers in the figure represent the following: 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 positioner; 41-positioning sleeve; 411-rebar positioning section; 412-threaded connection section; 42-connector; 421-hanging device; 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

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] 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. This embodiment takes the steel arch frame 1 (inner layer component) and the longitudinal steel bar (outer layer component) of the 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 and improve construction quality and efficiency.

[0020] Combination Figure 1 , the layer spacing adjustment mechanism includes: The rail car 2 is used to move forward and backward along the steel arch frame 1; A support frame 3, fixedly connected to the rail vehicle 2, for providing a support function; A steel bar positioner 4, which 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; 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 positioner 4. The guide sleeve 52 is sleeved on the outer side of the guide scale 51 to provide a guide function for the movement of the steel bar positioner 4. 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 bars.

[0021] When the radial distance between the steel arch frame 1 and the longitudinal reinforcement of the tunnel needs to be adjusted, the operation flow of the layer distance measurement method is as follows: Step 1: pre-install the rail car 2 on the steel arch 1, install the longitudinal steel bars on the steel bar positioner 4, move the rail car 2 along the steel arch 1, and move the longitudinal steel bars to a predetermined position.

[0022] Step 2: Start the linear drive 6 to drive the steel bar positioner 4 to move radially, and at the same time observe the scale 511 pointed to by the known marker 521 to achieve precise radial movement of the longitudinal steel bar.

[0023] Specifically, in the above embodiments: 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 to facilitate reading by the operator. The known marker 521 on the guide sleeve 52 refers to the end of the guide sleeve 52, and the scale 511 on the surface of the guide scale 51 pointed to by the known marker 521 refers to the overlap between the end face of the guide sleeve 52 and the scale 511.

[0024] The rail vehicle 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 wing plates 12 of the steel arch frame 1, respectively, so that the rail vehicle 2 rides on the steel arch frame 1. The body 21 of the rail vehicle 2 is fixedly connected to the support frame 3, which is a stable mobile platform for the layer spacing adjustment mechanism.

[0025] 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 vehicle 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 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.

[0026] 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 .

[0027] The connecting member 42 includes a hanger 421, a steering member 422, a bolt 423 and a lifting ring 424, wherein the hanger 421, the steering member 422 and the bolt 423 are an integrated member, the hanger 421 and the bolt 423 are perpendicular to each other, the hanger 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 a whole.

[0028] 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 body 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 .

[0029] 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.

[0030] The steel arch frame 1 and the longitudinal reinforcement in this embodiment are examples of inner and outer components. This embodiment is not limited to application to the steel arch frame 1 and the longitudinal reinforcement. It only needs to replace the rail car 2 with other inner component connectors and the reinforcement positioner 4 with other outer component connectors to make the layer spacing adjustment mechanism applicable to other double-layer components.

[0031] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope 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 essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A layer spacing adjustment mechanism for a double-layer component, characterized in that: include: An inner layer component connector, used for connecting inner layer components; A support frame (3) fixedly connected to the inner layer component connector and used to provide a support function; 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 layer 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 layer component connector; A linear drive (6) is fixedly connected to the support frame (3), and its 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), thereby realizing the readable adjustment of the radial distance between the inner layer component and the outer layer component.

2. A layer spacing adjustment mechanism for a double-layer component according to claim 1, characterized in that: The support frame (3) comprises a bottom plate (31), a column (32), a positioning plate (33) and a support plate (34); the column (32) is made of channel steel; the bottom plate (31) is arranged at one end of the outside of the column (32); the positioning plate (33) and the support plate (34) are arranged at two ends of the inside of the column (32); the bottom 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) can pass through the support plate (34) to move; and the outer layer component connector is located on a side of the support plate (34) away from the positioning plate (33).

3. The layer spacing adjustment mechanism of 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).

4. 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), and the inner layer component connector is a rail vehicle (2). The rail vehicle (2) is used to move forward and backward along the steel arch frame (1).

5. The layer spacing adjustment mechanism of a double-layer component according to claim 4, 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 two wing plates (12) of the steel arch frame (1), respectively, 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).

6. The layer spacing adjustment mechanism of a double-layer component according to claim 1, characterized in that: 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 bars.

7. A layer spacing adjustment mechanism for a double-layer component according to claim 6, characterized in that: 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 bars, and the connecting piece (42) is used to connect the positioning sleeve (41) and the guide sleeve (52).

8. The layer spacing adjustment mechanism of a double-layer component according to claim 7, characterized in that: The connecting member (42) comprises 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 a whole.

9. The layer spacing adjustment mechanism of a double-layer component according to claim 8, 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).

10. 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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