Pipe launching slope adjusting device and adjusting method

Abstract

The application belongs to the technical field of pipe jacking process, and discloses a pipe jacking initial slope adjusting device and adjusting method. The pipe jacking initial slope adjusting device comprises a base, an adjusting assembly, a launching rack and a rotary driving mechanism. The adjusting assembly comprises a laminated wedge-shaped adjusting seat and a wedge-shaped adjusting piece. The wedge-shaped adjusting seat is rotatably arranged around the vertical direction on the base, and the wedge-shaped adjusting piece is rotatably arranged around the vertical direction on the wedge-shaped adjusting seat. A first inclined surface is arranged on the wedge-shaped adjusting seat and is vertically inclined. A second inclined surface with the same inclination as the first inclined surface is arranged on the wedge-shaped adjusting piece, and the first inclined surface is in close contact with the second inclined surface. The launching rack is arranged on the top of the wedge-shaped adjusting piece and is in rotary cooperation with the wedge-shaped adjusting piece. The rotary driving mechanism is used for driving the wedge-shaped adjusting seat and the wedge-shaped adjusting piece to rotate. The pipe jacking initial slope adjusting device and adjusting method ensure the accuracy of the pipe jacking initial slope adjustment and expand the adjustable range of the pipe jacking initial slope.

Description

Technical Field

[0001] This invention relates to the field of pipe jacking technology, and in particular to a pipe jacking starting slope adjustment device and adjustment method. Background Technology

[0002] Pipe jacking is a trenchless construction method that uses jacking force and the weight of the pipe itself to pass through obstacles such as soil, rock, rivers, roads, and buildings to achieve the purpose of tunnel excavation or pipeline laying. It is widely used in tunnel excavation. Before pipe jacking construction, the starting slope of the jacking machine needs to be adjusted to accurately control the jacking direction of the jacking machine, ensuring the smooth advancement of the jacking machine and the quality of tunnel excavation.

[0003] Currently, the adjustment of pipe jacking slope typically employs two methods: adjusting the height of the pipe jacking moving track and installing a slope adjustment device at the starting position of the pipe jacking. Adjusting the height of the moving track mainly involves placing iron felt of varying numbers or heights under the track to change its slope, thereby altering the slope of the pipe installed on the moving track. However, this method is limited by the height of the iron felt, resulting in low slope adjustment accuracy. Furthermore, the iron felt is prone to deformation after being subjected to repeated impacts from multiple pipe sections, affecting the pipe's slope. Existing slope adjustment devices primarily utilize jacks or other lifting equipment to change the height at both ends of the pipe to adjust the starting slope of the pipe jacking. However, these lifting structures themselves have a limited height and can only move the ends of the pipe upwards, restricting both the adjustable angle and the starting height of the pipe jacking, thus limiting the flexibility of adjusting the starting slope.

[0004] Therefore, there is an urgent need for a device and method for adjusting the starting slope of pipe jacking to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe jacking starting slope adjustment device and adjustment method, which ensures the accuracy of pipe jacking starting slope adjustment, expands the adjustable range of pipe jacking starting slope, and improves the flexibility and versatility of the pipe jacking starting slope adjustment device.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, a pipe jacking starting slope adjustment device is provided, comprising:

[0008] Base;

[0009] The adjustment assembly includes a stacked wedge-shaped adjustment seat and a wedge-shaped adjustment member. The wedge-shaped adjustment seat is rotatably disposed on the base about the vertical direction, and the wedge-shaped adjustment member is rotatably disposed on the wedge-shaped adjustment seat about the vertical direction. The rotation axis of the wedge-shaped adjustment seat and the rotation axis of the wedge-shaped adjustment member are collinear. The wedge-shaped adjustment seat is provided with a first inclined surface that is vertically inclined, and the wedge-shaped adjustment member is provided with a second inclined surface that has the same degree of inclination as the first inclined surface. The first inclined surface and the second inclined surface are in contact.

[0010] The launcher is mounted on top of the wedge-shaped adjusting member and rotates with the wedge-shaped adjusting member; the launcher extends along the launch direction.

[0011] A rotary drive mechanism is mounted on the base and connected to the wedge-shaped adjusting seat and the wedge-shaped adjusting component, used to drive the wedge-shaped adjusting seat and the wedge-shaped adjusting component to rotate.

[0012] Optionally, the wedge-shaped adjusting seat is provided with a first mounting groove, and the wedge-shaped adjusting member is provided with a second mounting groove corresponding to the first mounting groove. The rotary driving mechanism includes a first driving member, a second driving member, a first transmission assembly, and a second transmission assembly. The first driving member is disposed in the first mounting groove, and the second driving member is disposed in the second mounting groove. The output end of the first driving member is connected to the wedge-shaped adjusting seat through the first transmission assembly to drive the wedge-shaped adjusting seat to rotate. The output end of the second driving member is connected to the wedge-shaped adjusting member through the second transmission assembly to drive the wedge-shaped adjusting member to rotate.

[0013] Optionally, the first transmission assembly includes a meshing first gear and a first rack, the first gear being connected to the output end of the first drive member, and the first rack being disposed on the groove wall of the first mounting groove and extending circumferentially along the first mounting groove; the second transmission assembly includes a meshing second gear and a second rack, the second gear being connected to the output end of the second drive member, and the second rack being disposed on the groove wall of the second mounting groove and extending circumferentially along the second mounting groove.

[0014] Optionally, a vertically extending limiting shaft is provided on the base, and the limiting shaft passes through the wedge-shaped adjusting seat, the wedge-shaped adjusting component and the launcher, and the limiting shaft is rotatably engaged with the wedge-shaped adjusting seat, the wedge-shaped adjusting component and the launcher.

[0015] Optionally, the end of the limiting shaft is provided with a spherical limiting part, the launcher is provided with a through hole, the spherical limiting part is located in the through hole, and the top surface of the spherical limiting part protrudes out of the through hole, and the outer wall of the spherical limiting part contacts and slides with the hole wall of the through hole.

[0016] Optionally, a plurality of first ball grooves are provided on the first or second inclined surface, a plurality of second ball grooves are provided on the bottom of the wedge-shaped adjusting seat or the base, and a plurality of third ball grooves are provided on the top of the wedge-shaped adjusting member or the bottom of the launching frame. A plurality of rotatable balls are provided in the first, second, and third ball grooves.

[0017] Optionally, lubricant is applied between the first and second inclined surfaces, between the bottom surface of the wedge-shaped adjustment seat and the base, and between the top surface of the wedge-shaped adjustment member or the bottom surface of the launcher.

[0018] Optionally, the launcher is provided with a launch slot extending along the launch direction, and the top tube can be installed in the launch slot.

[0019] Optionally, the launcher is provided with several limiting members on both sides along the preset direction, and the limiting members on both sides of the launcher are arranged symmetrically. The launcher is clamped by the limiting members on both sides, and the preset direction is perpendicular to the launch direction.

[0020] On the other hand, a method for adjusting the starting slope of pipe jacking is provided, which uses the aforementioned pipe jacking starting slope adjustment device to adjust the starting slope of the pipe jacking, including the following steps:

[0021] S1. Determine the starting slope required for pipe jacking according to construction requirements;

[0022] S2. Control the rotary drive mechanism to drive the wedge-shaped adjustment seat and the wedge-shaped adjustment component to rotate. The thickness of the wedge-shaped adjustment seat and the wedge-shaped adjustment component changes along the launch direction. The wedge-shaped adjustment component causes the launcher to tilt.

[0023] S3. Once the launcher's tilt along the launch direction is the same as the initial slope, control the rotary drive mechanism to stop driving the wedge adjustment seat and wedge adjustment component to rotate.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] This invention provides a device and method for adjusting the launching slope of a jacking pipe. Both the wedge-shaped adjusting seat and the wedge-shaped adjusting component have wedge-shaped cross-sections. The first and second inclined surfaces are inclined vertically, making both the wedge-shaped adjusting seat and the wedge-shaped adjusting component have variable cross-sections along the launching direction. The thickness of the wedge-shaped adjusting seat and the wedge-shaped adjusting component varies at any point along the launching direction. Therefore, when the rotary drive mechanism drives the wedge-shaped adjusting seat and the wedge-shaped adjusting component to rotate vertically, the position of the thinnest point of the wedge-shaped adjusting seat and the wedge-shaped adjusting component changes in the plane, causing the thickness of the wedge-shaped adjusting seat and the wedge-shaped adjusting component to change at various points along the launching direction. Consequently, the overall thickness of the stacked wedge-shaped adjusting seat and the wedge-shaped adjusting component also changes at various points along the launching direction, that is, the degree of inclination of the top surface of the wedge-shaped adjusting component along the launching direction changes, thereby achieving the adjustment of the launching frame's inclination slope, i.e., completing the adjustment of the launching slope of the jacking pipe. During the rotation of the wedge-shaped adjusting seat and the wedge-shaped adjusting component, the height of any end of the top surface of the wedge-shaped adjusting component along the launch direction can be freely adjusted within the range of the sum of the minimum thickness of the wedge-shaped adjusting seat and the minimum thickness of the wedge-shaped adjusting component to the sum of the maximum thickness of the wedge-shaped adjusting seat and the maximum thickness of the wedge-shaped adjusting component. This expands the adjustable range of the jacking pipe starting slope and improves the flexibility and versatility of the jacking pipe starting slope adjustment device. Moreover, under the drive of the rotary drive mechanism, the wedge-shaped adjusting seat and the wedge-shaped adjusting component can be rotated to any position and stop, allowing the launcher to tilt at any angle, ensuring the accuracy of the jacking pipe starting slope adjustment. Attached Figure Description

[0026] Figure 1 This is a first cross-sectional view of the pipe jacking initiation slope adjustment device provided by the present invention;

[0027] Figure 2 This is a second cross-sectional view of the pipe jacking initiation slope adjustment device provided by the present invention;

[0028] Figure 3 This is a schematic diagram of the wedge-shaped adjusting seat of the jacking initiation slope adjusting device provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the pipe jacking initiation slope adjustment device provided by the present invention;

[0030] Figure 5 This is a front view of the pipe jacking initiation slope adjustment device provided by the present invention;

[0031] Figure 6 This is a side view of the pipe jacking initiation slope adjustment device provided by the present invention;

[0032] Figure 7 This is a flowchart of the pipe jacking initiation slope adjustment method provided by the present invention.

[0033] In the picture:

[0034] 1. Base;

[0035] 2. Adjustment assembly; 21. Wedge-shaped adjustment seat; 211. First inclined surface; 212. First mounting groove; 213. First ball groove; 22. Wedge-shaped adjustment element; 221. Second mounting groove;

[0036] 3. Launch pad; 31. Launch slot;

[0037] 4. Rotary drive mechanism; 41. First drive member; 42. Second drive member; 43. First transmission assembly; 431. First gear; 432. First rack; 44. Second transmission assembly; 441. Second gear; 442. Second rack;

[0038] 5. Limiting shaft; 51. Spherical limiting part;

[0039] 6. Limiting components. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0044] Example 1

[0045] like Figures 1 to 6 As shown, this embodiment provides a pipe jacking starting slope adjustment device, which ensures the accuracy of pipe jacking starting slope adjustment, expands the adjustable range of pipe jacking starting slope, and improves the flexibility and versatility of the pipe jacking starting slope adjustment device.

[0046] See Figure 1 , Figure 2 and Figure 3 The pipe jacking starting slope adjustment device includes a base 1, an adjustment assembly 2, a launcher 3, and a rotary drive mechanism 4. The adjustment assembly 2 includes stacked wedge-shaped adjustment seats 21 and wedge-shaped adjustment components 22. The wedge-shaped adjustment seats 21 rotate around the vertical direction ( Figure 1 The wedge-shaped adjusting member 22 is rotatably mounted on the base 1 in the Z direction. The wedge-shaped adjusting member 22 is rotatably mounted on the wedge-shaped adjusting seat 21 in the vertical direction, with the rotation axis of the wedge-shaped adjusting seat 21 and the rotation axis of the wedge-shaped adjusting member 22 collinear. The wedge-shaped adjusting seat 21 has a vertically inclined first inclined surface 211, and the wedge-shaped adjusting member 22 has a second inclined surface with the same degree of inclination as the first inclined surface 211. The first inclined surface 211 and the second inclined surface are in contact. The launcher 3 is mounted on top of the wedge-shaped adjusting member 22 and rotates in cooperation with it. The launcher 3 is positioned along the launch direction (Z direction). Figure 1 The rotation drive mechanism 4 is located on the base 1 and connected to the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22, and is used to drive the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to rotate.

[0047] The jacking pipe launching slope adjustment device provided in this embodiment has a wedge-shaped cross-section for both the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22. The first inclined surface 211 and the second inclined surface are inclined in the vertical direction, making both the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 have variable cross-sections along the launching direction. The thickness of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 is different at any part along the launching direction. Therefore, when the rotary drive mechanism 4 drives the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to rotate around the vertical direction, the position of the thinnest part of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 changes in the plane, causing the thickness of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to change at various parts along the launching direction. Consequently, the overall thickness of the stacked wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 also changes at various parts along the launching direction. That is, the inclination degree of the top surface of the wedge-shaped adjustment member 22 along the launching direction changes, thereby realizing the adjustment of the tilt slope of the launching frame 3, that is, completing the adjustment of the jacking pipe launching slope. During the rotation of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22, the height of any end of the top surface of the wedge-shaped adjusting component 22 along the launch direction can be freely adjusted within the range of the sum of the minimum thickness of the wedge-shaped adjusting seat 21 and the minimum thickness of the wedge-shaped adjusting component 22 to the sum of the maximum thickness of the wedge-shaped adjusting seat 21 and the maximum thickness of the wedge-shaped adjusting component 22. This expands the adjustable range of the jacking pipe starting slope and improves the flexibility and versatility of the jacking pipe starting slope adjustment device. Moreover, under the drive of the rotary drive mechanism 4, the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22 can be rotated to any position and stop, so that the launcher 3 can tilt at any angle, ensuring the accuracy of the jacking pipe starting slope adjustment.

[0048] Specifically, see Figure 1 When the minimum thickness of the wedge-shaped adjusting seat 21 coincides with the minimum thickness of the wedge-shaped adjusting member 22, and is located at one end along the launch direction, the initial slope of the jacking pipe reaches its maximum; see reference. Figure 2 When the minimum thickness of the wedge-shaped adjusting seat 21 coincides with the maximum thickness of the wedge-shaped adjusting member 22, or vice versa, the launcher 3 can be in a horizontal state, and the initial slope of the jacking pipe is zero. In this embodiment, the operator can determine the inclination degree of the first inclined surface 211 of the wedge-shaped adjusting seat 21 according to the requirements of the initial slope of the jacking pipe.

[0049] For example, see Figure 3Both the wedge-shaped adjusting member 22 and the wedge-shaped adjusting seat 21 are wedge-shaped blocks with a circular cross-section. The rotation axis of the wedge-shaped adjusting member 22 and the rotation axis of the wedge-shaped adjusting seat 21 are both their centers. Therefore, the wedge-shaped adjusting member 22 and the wedge-shaped adjusting seat 21 can maintain a completely stacked state no matter which position they rotate to. The wedge-shaped adjusting member 22 can be stably supported by the wedge-shaped adjusting seat 21, and the launcher 3 can be stably supported by the wedge-shaped adjusting member 22, effectively preventing the launcher 3 from overturning during rotation and ensuring the stability of the launcher 3.

[0050] Optionally, see Figure 1 and Figure 2 The wedge-shaped adjusting seat 21 is provided with a first mounting groove 212, and the wedge-shaped adjusting member 22 is provided with a second mounting groove 221 corresponding to the first mounting groove 212. The rotary driving mechanism 4 includes a first driving member 41, a second driving member 42, a first transmission assembly 43, and a second transmission assembly 44. The first driving member 41 is disposed in the first mounting groove 212, and the second driving member 42 is disposed in the second mounting groove 221. The output end of the first driving member 41 is connected to the wedge-shaped adjusting seat 21 through the first transmission assembly 43 for driving the wedge-shaped adjusting seat 21 to rotate. The output end of the second driving member 42 is connected to the wedge-shaped adjusting member 22 through the second transmission assembly 44 for driving the wedge-shaped adjusting member 22 to rotate. This configuration allows the rotation of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22 to be driven independently without affecting each other. Therefore, when adjusting the starting slope of the pipe jacking, the operator can drive the wedge-shaped adjusting seat 21 to rotate alone, drive the wedge-shaped adjusting component 22 to rotate alone, or drive both the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22 to rotate simultaneously. This further expands the adjustable range of the starting slope of the pipe jacking. When the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22 are driven to rotate simultaneously, the efficiency of adjusting the starting slope of the pipe jacking can also be improved, making it convenient for use on the construction site.

[0051] In this embodiment, see Figure 1 and Figure 2The first transmission assembly 43 includes a meshing first gear 431 and a first rack 432. The first gear 431 is connected to the output end of the first drive member 41, and the first rack 432 is disposed on the groove wall of the first mounting groove 212 and extends circumferentially along the first mounting groove 212. The second transmission assembly 44 includes a meshing second gear 441 and a second rack 442. The second gear 441 is connected to the output end of the second drive member 42, and the second rack 442 is disposed on the groove wall of the second mounting groove 221 and extends circumferentially along the second mounting groove 221. The first drive member 41 drives the first gear 431 to rotate, while the first drive member 41 remains stationary. The first gear 431 drives the first rack 432 to move along its extension direction, and the first rack 432 drives the wedge-shaped adjusting seat 21 to rotate around the central axis of the first mounting groove 212. The rotation principle of the wedge-shaped adjusting member 22 is the same as that of the wedge-shaped adjusting seat 21, and will not be described again here.

[0052] For example, both the first drive member 41 and the second drive member 42 are motors. The first drive member 41 is mounted on the base 1, and the second drive member 42 is mounted on the first inclined surface 211 of the wedge-shaped adjustment seat 21.

[0053] Further, see Figure 1 A plurality of first driving components 41 are disposed in the first mounting slot 212, and the plurality of first driving components 41 are arranged at intervals along the circumference of the first mounting slot 212. A plurality of second driving components 42 are disposed in the second mounting slot 221, and the plurality of second driving components 42 are arranged at intervals along the circumference of the second mounting slot 221. The launcher 3 and the top tube are both heavy. The arrangement of the plurality of first driving components 41 and the plurality of second driving components 42 can provide greater power for the rotation of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22, so that the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting component 22 can still rotate smoothly under the action of a large load.

[0054] Optionally, see Figure 2 A vertically extending limiting shaft 5 is provided on the base 1. The limiting shaft 5 passes through the wedge-shaped adjusting seat 21, the wedge-shaped adjusting member 22, and the launcher 3. The limiting shaft 5 is rotatably engaged with the wedge-shaped adjusting seat 21, the wedge-shaped adjusting member 22, and the launcher 3. This arrangement ensures that the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 can only rotate around the limiting shaft 5 when rotating, thereby restricting the horizontal movement of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 and preventing the wedge-shaped adjusting member 22 from separating from the wedge-shaped adjusting seat 21, which would affect the adjustment and accuracy of the initial slope. The limiting shaft 5 passes through the launcher 3 and is rotatably engaged with the launcher 3, which can restrict the horizontal movement of the launcher 3 and avoid affecting the tilt of the launcher 3.

[0055] In this embodiment, see Figure 2 and Figure 4The end of the limiting shaft 5 is provided with a spherical limiting part 51. The launcher 3 is provided with a through hole. The spherical limiting part 51 is located in the through hole, and the top of the spherical limiting part 51 protrudes from the through hole. The outer wall of the spherical limiting part 51 contacts and slides with the hole wall of the through hole. The outer wall of the spherical limiting part 51 is an arc-shaped surface. Even if the spherical limiting part 51 contacts the hole wall of the through hole, the outer wall of the spherical limiting part 51 can slide smoothly with the hole wall of the through hole without affecting the tilt of the launcher 3. The top of the spherical limiting part 51 protrudes from the perforation. On the one hand, this allows the part of the spherical limiting part 51 with the largest cross-sectional diameter along the firing direction to be located inside the perforation, preventing the spherical limiting part 51 from detaching from the perforation and preventing the launcher 3 from moving. This achieves the limitation of the vertical and horizontal displacement of the launcher 3. On the other hand, the top surface of the spherical limiting part 51 is arc-shaped. Even if the top of the spherical limiting part 51 protrudes from the perforation, the protruding part of the spherical limiting part 51 will not affect the movement of the top tube on the launcher 3, so that the top tube can be smoothly ejected.

[0056] For example, the cross-sectional shape of the first mounting groove 212 and the second mounting groove 221 is annular, and the limiting member 6 passes through the inner hole of the annular first mounting groove 212 and the inner hole of the annular second mounting groove 221.

[0057] In an optional embodiment, see [link to relevant documentation] Figure 3 and Figure 5 A plurality of first ball grooves 213 are provided on the first inclined surface 211 or the second inclined surface, a plurality of second ball grooves are provided on the bottom of the wedge-shaped adjusting seat 21 or the base 1, and a plurality of third ball grooves are provided on the top of the wedge-shaped adjusting member 22 or the bottom of the launching frame 3. A plurality of rolling balls are provided in the first ball groove 213, the second ball groove and the third ball groove. This configuration ensures that when the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 rotate, both the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 can drive the balls in the first ball groove 213 to roll, the wedge-shaped adjusting seat 21 can drive the balls in the second ball groove to rotate, and the wedge-shaped adjusting member 22 can drive the balls in the third ball groove to rotate. This reduces the friction between the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22, between the wedge-shaped adjusting seat 21 and the base 1, and between the wedge-shaped adjusting member 22 and the launcher 3. It also reduces the power consumed by the rotary drive mechanism 4 and prevents the base 1, the wedge-shaped adjusting seat 21, the wedge-shaped adjusting member 22, and the launcher 3 from being worn.

[0058] For example, see Figure 3 Both the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 have circular cross-sectional shapes. The first ball groove 213 has an annular cross-sectional shape. When there are multiple first ball grooves 213, the diameters of the first ball grooves 213 are different, and the multiple first ball grooves 213 are arranged concentrically. The arrangement of the second ball groove and the third ball groove is the same as that of the first ball groove 213 when there are multiple first ball grooves, which will not be described again here.

[0059] In this embodiment, the first ball groove 213 and the second ball groove are both provided on the wedge-shaped adjusting seat 21, and the third ball groove is provided on the wedge-shaped adjusting member 22.

[0060] In another optional embodiment, lubricant is applied between the first inclined surface 211 and the second inclined surface, between the bottom surface of the wedge-shaped adjusting seat 21 and the base 1, and between the top surface of the wedge-shaped adjusting member 22 or the bottom surface of the launcher 3, to reduce the friction between the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22, between the wedge-shaped adjusting seat 21 and the base 1, and between the wedge-shaped adjusting member 22 and the launcher 3, thereby reducing the power consumed by the rotary drive mechanism 4 and preventing wear on the base 1, the wedge-shaped adjusting seat 21, the wedge-shaped adjusting member 22, and the launcher 3.

[0061] For example, lubricating oil is used as the lubricant.

[0062] Optionally, see Figure 5 and Figure 6 The launcher 3 is provided with a launch slot 31 extending along the launch direction. The top tube can be installed in the launch slot 31. The slot wall of the launch slot 31 can constrain the movement direction of the top tube so that the top tube can only move along the launch direction.

[0063] In this embodiment, see Figure 6 The perforation penetrates the bottom wall of the launching slot 31, and the top of the spherical limiting part 51 protrudes from the bottom surface of the launching slot 31.

[0064] Optionally, see Figure 4 and Figure 6 Launcher 3 is positioned along a preset direction ( Figure 6 Several limiting members 6 are provided on both sides of the launcher 3 (in the Y direction), and the limiting members 6 on both sides of the launcher 3 are symmetrically arranged. The launcher 3 is clamped by the limiting members 6 on both sides to prevent the launcher 3 from rotating during the rotation of the wedge-shaped adjusting member 22, thus ensuring the stability of the launcher 3 installation and the accuracy of the initial slope adjustment. The preset direction is perpendicular to the launch direction.

[0065] For example, see Figure 4 The limiting member 6 is made of plate, and there are four limiting members 6. Two limiting members 6 are provided on each side of the launcher 3 along the preset direction, and the two limiting members 6 on each side of the launcher 3 along the preset direction are spaced apart along the launch direction.

[0066] Example 2

[0067] like Figure 7 As shown, this embodiment provides a method for adjusting the starting slope of pipe jacking. The method uses the pipe jacking starting slope adjustment device from Embodiment 1 to adjust the starting slope of the pipe jacking, and includes the following steps:

[0068] S1. Determine the starting slope required for pipe jacking according to construction requirements;

[0069] S2. Control the rotation drive mechanism 4 to drive the wedge adjustment seat 21 and the wedge adjustment component 22 to rotate. The thickness of the wedge adjustment seat 21 and the wedge adjustment component 22 changes along the launch direction. The wedge adjustment component 22 causes the launcher 3 to tilt.

[0070] S3. After the tilt of the launcher 3 along the launch direction is the same as the initial slope, control the rotary drive mechanism 4 to stop driving the wedge adjustment seat 21 and the wedge adjustment component 22 to rotate.

[0071] S4. Use hoisting equipment such as a crane to install the jacking pipe into the launch slot 31 of the launcher 3.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for adjusting the starting slope of pipe jacking, characterized in that, include: Base (1); The adjustment assembly (2) includes a stacked wedge-shaped adjustment seat (21) and a wedge-shaped adjustment member (22). The wedge-shaped adjustment seat (21) is rotatably disposed on the base (1) about the vertical direction. The wedge-shaped adjustment member (22) is rotatably disposed on the wedge-shaped adjustment seat (21) about the vertical direction. The rotation axis of the wedge-shaped adjustment seat (21) and the rotation axis of the wedge-shaped adjustment member (22) are collinear. The wedge-shaped adjustment seat (21) is provided with a first inclined surface (211) that is vertically inclined. The wedge-shaped adjustment member (22) is provided with a second inclined surface that has the same degree of inclination as the first inclined surface (211). The first inclined surface (211) and the second inclined surface are in contact. The launcher (3) is located on top of the wedge-shaped adjusting member (22) and rotates with the wedge-shaped adjusting member (22). The launcher (3) extends along the launch direction. A rotary drive mechanism (4) is disposed on the base (1) and connected to the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) for driving the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) to rotate; Both the wedge-shaped adjusting seat (21) and the wedge-shaped adjusting member (22) are structures with variable cross-sections along the firing direction, and the thickness of the wedge-shaped adjusting seat (21) and the wedge-shaped adjusting member (22) is different at any part along the firing direction.

2. The pipe jacking starting slope adjustment device according to claim 1, characterized in that, The wedge-shaped adjusting seat (21) is provided with a first mounting groove (212), and the wedge-shaped adjusting member (22) is provided with a second mounting groove (221) corresponding to the first mounting groove (212). The rotary driving mechanism (4) includes a first driving member (41), a second driving member (42), a first transmission assembly (43), and a second transmission assembly (44). The first driving member (41) is disposed in the first mounting groove (212), and the second driving member (42) is disposed in the second mounting groove (221). The output end of the first driving member (41) is connected to the wedge-shaped adjusting seat (21) through the first transmission assembly (43) to drive the wedge-shaped adjusting seat (21) to rotate. The output end of the second driving member (42) is connected to the wedge-shaped adjusting member (22) through the second transmission assembly (44) to drive the wedge-shaped adjusting member (22) to rotate.

3. The pipe jacking starting slope adjustment device according to claim 2, characterized in that, The first transmission assembly (43) includes a meshing first gear (431) and a first rack (432). The first gear (431) is connected to the output end of the first drive member (41). The first rack (432) is disposed on the groove wall of the first mounting groove (212) and extends circumferentially along the first mounting groove (212). The second transmission assembly (44) includes a meshing second gear (441) and a second rack (442). The second gear (441) is connected to the output end of the second drive member (42). The second rack (442) is disposed on the groove wall of the second mounting groove (221) and extends circumferentially along the second mounting groove (221).

4. The pipe jacking starting slope adjustment device according to claim 1, characterized in that, The base (1) is provided with a vertically extending limiting shaft (5), which passes through the wedge-shaped adjusting seat (21), the wedge-shaped adjusting member (22) and the launcher (3). The limiting shaft (5) is rotatably engaged with the wedge-shaped adjusting seat (21), the wedge-shaped adjusting member (22) and the launcher (3).

5. The pipe jacking starting slope adjustment device according to claim 4, characterized in that, The end of the limiting shaft (5) is provided with a spherical limiting part (51), the launcher (3) is provided with a through hole, the spherical limiting part (51) is located in the through hole, and the top surface of the spherical limiting part (51) protrudes from the through hole. The outer wall of the spherical limiting part (51) contacts and slides with the hole wall of the through hole.

6. The pipe jacking starting slope adjustment device according to claim 1, characterized in that, A plurality of first ball grooves (213) are provided on the first inclined surface (211) or the second inclined surface, a plurality of second ball grooves are provided on the bottom of the wedge-shaped adjusting seat (21) or the base (1), and a plurality of third ball grooves are provided on the top of the wedge-shaped adjusting member (22) or the bottom of the launching frame (3). A plurality of rotatable balls are provided in the first ball groove (213), the second ball groove and the third ball groove.

7. The pipe jacking starting slope adjustment device according to claim 1, characterized in that, Lubricant is injected between the first inclined surface (211) and the second inclined surface, between the bottom surface of the wedge-shaped adjustment seat (21) and the base (1), and between the top surface of the wedge-shaped adjustment member (22) or the bottom surface of the launcher (3).

8. The pipe jacking starting slope adjustment device according to any one of claims 1-7, characterized in that, The launcher (3) is provided with a launch slot (31) extending along the launch direction, and the top tube can be installed in the launch slot (31).

9. The pipe jacking starting slope adjustment device according to any one of claims 1-7, characterized in that, The launcher (3) is provided with several limiting members (6) on both sides along the preset direction, and the limiting members (6) on both sides of the launcher (3) are arranged symmetrically. The launcher (3) is clamped by the limiting members (6) on both sides, and the preset direction is perpendicular to the launch direction.

10. A method for adjusting the starting slope of pipe jacking, characterized in that, Adjusting the starting slope of the jacking pipe using the pipe jacking starting slope adjustment device as described in any one of claims 1-9 includes the following steps: S1. Determine the starting slope required for pipe jacking according to construction requirements; S2. Control the rotary drive mechanism (4) to drive the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) to rotate. The thickness of the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) changes along the launching direction. The wedge-shaped adjustment member (22) drives the launching frame (3) to tilt. S3. After the degree of inclination of the launcher (3) along the launch direction is the same as the initial slope, control the rotary drive mechanism (4) to stop driving the wedge adjustment seat (21) and the wedge adjustment member (22) to rotate.

Images