Pipe jacking starting gradient adjusting device and method

Abstract

The invention belongs to the technical field of pipe jacking processes, and discloses a pipe jacking starting gradient adjusting device and method. The pipe jacking starting gradient adjusting device comprises a base, an adjusting assembly, a launching rack and a rotary driving mechanism, the adjusting assembly comprises a wedge-shaped adjusting seat and a wedge-shaped adjusting piece which are stacked, the wedge-shaped adjusting seat is rotatably arranged on the base in the vertical direction, and the wedge-shaped adjusting piece is rotatably arranged on the wedge-shaped adjusting seat in the vertical direction; the wedge-shaped adjusting seat is provided with a vertically inclined first inclined surface, the wedge-shaped adjusting part is provided with a second inclined surface with the same inclination degree as the first inclined surface, and the first inclined surface is attached to the second inclined surface; the launching rack is arranged at the top of the wedge-shaped adjusting piece and is in running fit with the wedge-shaped adjusting piece; and the rotary driving mechanism is used for driving the wedge-shaped adjusting seat and the wedge-shaped adjusting piece to rotate. According to the pipe jacking starting gradient adjusting device and method, the accuracy of pipe jacking starting gradient adjusting is guaranteed, and the adjustable range of the pipe jacking starting gradient is widened.

Description

Technical Field

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

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

[0003] At present, the adjustment of the slope of the jacking pipe is usually carried out by adjusting the height of the jacking pipe moving track and installing a slope adjustment device at the starting position of the jacking pipe. The height adjustment of the jacking pipe moving track mainly involves padding different numbers or different heights of iron felts under the track to change the slope of the track, so as to change the slope of the pipeline installed on the moving track. However, due to the limitation of the height of the iron felt, the slope adjustment accuracy of this method is low, and the iron felt will be easily deformed after being repeatedly acted on by multiple sections of the pipeline, affecting the slope of the pipeline. The existing slope adjustment device mainly uses jacking equipment such as jacks to change the height of both ends of the pipeline to achieve the adjustment of the starting slope of the jacking pipe. However, these jacking structures themselves have a certain height and can only drive the end of the pipeline to move upward, resulting in the adjustable angle of the starting slope of the jacking pipe and the starting height of the jacking pipe being limited, making the flexibility of adjusting the starting slope of the jacking pipe poor.

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

[0005] The purpose of the present invention is to provide a pipe jacking starting slope adjustment device and adjustment method, which ensure the accuracy of pipe jacking starting slope adjustment, expand the adjustable range of pipe jacking starting slope, and improve the flexibility and versatility of the pipe jacking starting slope adjustment device.

[0006] To achieve this object, the present invention adopts the following technical solutions:

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

[0008] Base;

[0009] The adjustment assembly comprises a stacked wedge-shaped adjustment seat and a wedge-shaped adjustment member, wherein the wedge-shaped adjustment seat is rotatably arranged on the base around a vertical direction, the wedge-shaped adjustment member is rotatably arranged on the wedge-shaped adjustment seat around a vertical direction, and the rotation axis of the wedge-shaped adjustment seat is colinear with the rotation axis of the wedge-shaped adjustment member, the wedge-shaped adjustment seat is provided with a vertically inclined first inclined surface, the wedge-shaped adjustment member is provided with a second inclined surface with the same inclination as the first inclined surface, and the first inclined surface is in contact with the second inclined surface;

[0010] A launching frame is arranged on the top of the wedge-shaped adjusting member and is rotatably matched with the wedge-shaped adjusting member, and the launching frame extends along the launching direction;

[0011] The rotation driving mechanism is arranged on the base and connected with the wedge-shaped adjusting seat and the wedge-shaped adjusting member, and is used for driving the wedge-shaped adjusting seat and the wedge-shaped adjusting member to rotate.

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

[0013] Optionally, the first transmission assembly includes a first gear and a first rack that are meshed with each other, the first gear is connected to the output end of the first driving member, the first rack is arranged on the groove wall of the first mounting groove, and extends along the circumference of the first mounting groove; the second transmission assembly includes a second gear and a second rack that are meshed with each other, the second gear is connected to the output end of the second driving member, the second rack is arranged on the groove wall of the second mounting groove, and extends along the circumference of the second mounting groove.

[0014] Optionally, a vertically extending limit shaft is provided on the base, and the limit shaft passes through the wedge-shaped adjustment seat, the wedge-shaped adjustment member and the launching frame, and the limit shaft is rotationally matched with the wedge-shaped adjustment seat, the wedge-shaped adjustment member and the launching frame.

[0015] Optionally, a spherical limiting portion is provided at the end of the limiting shaft, a through hole is provided on the launching frame, the spherical limiting portion is located in the through hole, and the top surface of the spherical limiting portion protrudes from the through hole, and the outer wall of the spherical limiting portion contacts and slides with the hole wall of the through hole.

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

[0017] Optionally, lubricant is injected between the first inclined surface and the second inclined surface, 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 launching frame.

[0018] Optionally, a launching slot extending along the launching direction is provided on the launching frame, and the top pipe can be installed in the launching slot.

[0019] Optionally, a plurality of limit members are provided on both sides of the launch frame along a preset direction, and the limit members on both sides of the launch frame are arranged symmetrically, the launch frame is clamped by the limit 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 a jacking pipe is provided, wherein the starting slope of a jacking pipe is adjusted by using the above-mentioned starting slope adjusting device of the jacking pipe, and the method comprises the following steps:

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

[0022] S2, controlling the rotary drive mechanism to drive the wedge-shaped adjustment seat and the wedge-shaped adjustment member to rotate, the thickness of the wedge-shaped adjustment seat and the wedge-shaped adjustment member along the launching direction changes, and the wedge-shaped adjustment member drives the launching frame to tilt;

[0023] S3. After the inclination degree of the launching frame along the launching direction is the same as the starting slope, the rotating driving mechanism is controlled to stop driving the wedge-shaped adjusting seat and the wedge-shaped adjusting member to rotate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a device and method for adjusting the starting slope of a top pipe, wherein the cross-sectional shapes of a wedge-shaped adjustment seat and a wedge-shaped adjustment member are both wedge-shaped, and the first inclined surface and the second inclined surface are inclined in the vertical direction, so that the wedge-shaped adjustment seat and the wedge-shaped adjustment member are both structures with variable cross-sections along the launching direction, and the thickness of any part of the wedge-shaped adjustment seat and the wedge-shaped adjustment member along the launching direction is different. Therefore, when the rotary drive mechanism drives the wedge-shaped adjustment seat and the wedge-shaped adjustment member to rotate around the vertical direction, the position of the thinnest part of the wedge-shaped adjustment seat and the wedge-shaped adjustment member in the plane changes, so that the thickness of each part of the wedge-shaped adjustment seat and the wedge-shaped adjustment member along the launching direction changes, and then the thickness of each part of the stacked wedge-shaped adjustment seat and the wedge-shaped adjustment member along the launching direction also changes, that is, the inclination degree of the top surface of the wedge-shaped adjustment member along the launching direction changes, thereby realizing the adjustment of the inclination slope of the launch stand, that is, completing the adjustment of the starting slope of the top rod. During the rotation of the wedge-shaped adjustment seat and the wedge-shaped adjustment piece, the height of the top surface of the wedge-shaped adjustment piece at either end along the launching direction can be adjusted at will within the range of the sum of the minimum thickness of the wedge-shaped adjustment seat and the minimum thickness of the wedge-shaped adjustment piece to the sum of the maximum thickness of the wedge-shaped adjustment seat and the maximum thickness of the wedge-shaped adjustment piece, thereby expanding the adjustable range of the top pipe launching slope and improving the flexibility and versatility of the top pipe launching slope adjustment device; moreover, when driven by the rotating drive mechanism, the wedge-shaped adjustment seat and the wedge-shaped adjustment piece can be rotated to any position and stopped, so that the launching frame can be tilted at any angle, thereby ensuring the accuracy of the top pipe launching slope adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0028] Figure 3 It is a structural schematic diagram of a wedge-shaped adjustment seat of a jacking pipe starting slope adjustment device provided by the present invention;

[0029] Figure 4 It is a structural schematic diagram of the jacking starting slope adjustment device provided by the present invention;

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

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

[0032] Figure 7 The present invention is a flowchart of a method for adjusting the starting slope of a pipe jacking provided by the present invention.

[0033] In the figure:

[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 member; 221. Second mounting groove;

[0036] 3. Launching rack; 31. Launching 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 parts. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Embodiment 1

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

[0046] See also Figure 1 , Figure 2 and Figure 3 The jacking pipe starting slope adjustment device comprises a base 1, an adjustment assembly 2, a launching frame 3 and a rotating drive mechanism 4. The adjustment assembly 2 comprises a stacked wedge-shaped adjustment seat 21 and a wedge-shaped adjustment member 22. The wedge-shaped adjustment seat 21 rotates in a vertical direction ( Figure 1 The wedge-shaped adjusting member 22 is rotatably arranged on the base 1 around the vertical direction, and the rotation axis of the wedge-shaped adjusting member 21 is colinear with the rotation axis of the wedge-shaped adjusting member 22. The wedge-shaped adjusting member 21 is provided with a vertically inclined first inclined surface 211, and the wedge-shaped adjusting member 22 is provided with a second inclined surface with the same inclination as the first inclined surface 211, and the first inclined surface 211 is fitted with the second inclined surface; the launching frame 3 is arranged on the top of the wedge-shaped adjusting member 22 and is rotatably matched with the wedge-shaped adjusting member 22, and the launching frame 3 is arranged along the launching direction ( Figure 1 rotation drive mechanism 4 is disposed on the base 1 and is 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.

[0047] In the device for adjusting the starting slope of the top pipe provided in this embodiment, the cross-sectional shapes of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 are both wedge-shaped, and the first inclined surface 211 and the second inclined surface are inclined in the vertical direction, so that the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 are both structures with variable cross-sections along the launching direction, and the thickness of any part of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 along the launching direction is different. Therefore, when the rotary drive mechanism 4 drives the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 to rotate around the vertical direction, the position of the thinnest part of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 in the plane changes, so that the thickness of each part of the wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 along the launching direction changes, and then the thickness of each part of the stacked wedge-shaped adjusting seat 21 and the wedge-shaped adjusting member 22 along the launching direction also changes, that is, the inclination degree of the top surface of the wedge-shaped adjusting member 22 along the launching direction changes, thereby realizing the adjustment of the inclination slope of the launching frame 3, that is, completing the adjustment of the starting slope of the top rod. During the rotation of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment piece 22, the height of the top surface of the wedge-shaped adjustment piece 22 at either end along the launching direction can be adjusted at will within the range of the sum of the minimum thickness of the wedge-shaped adjustment seat 21 and the minimum thickness of the wedge-shaped adjustment piece 22 to the sum of the maximum thickness of the wedge-shaped adjustment seat 21 and the maximum thickness of the wedge-shaped adjustment piece 22, thereby expanding the adjustable range of the top pipe launching slope and improving the flexibility and versatility of the top pipe launching slope adjustment device; moreover, under the drive of the rotating drive mechanism 4, the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment piece 22 can rotate to any position and stop, so that the launching frame 3 can be tilted at any angle, thereby ensuring the accuracy of the top pipe launching slope adjustment.

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

[0049] For example, see Figure 3The wedge-shaped adjusting piece 22 and the wedge-shaped adjusting seat 21 are both wedge-shaped blocks with a circular cross-section, and the rotation axes of the wedge-shaped adjusting piece 22 and the wedge-shaped adjusting seat 21 are both the centers of the circles, so that the wedge-shaped adjusting piece 22 and the wedge-shaped adjusting seat 21 can maintain a completely stacked state with each other no matter which position they are rotated to, the wedge-shaped adjusting piece 22 can be stably supported by the wedge-shaped adjusting seat 21, and the launching frame 3 can be stably supported by the wedge-shaped adjusting piece 22, which effectively prevents the launching frame 3 from tipping over during the rotation process and ensures the stability of the launching frame 3.

[0050] Optionally, see Figure 1 and Figure 2 A first mounting groove 212 is provided on the wedge-shaped adjustment seat 21, and a second mounting groove 221 corresponding to the first mounting groove 212 is provided on the wedge-shaped adjustment member 22. The rotation drive 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 arranged in the first mounting groove 212, and the second driving member 42 is arranged in the second mounting groove 221. The output end of the first driving member 41 is connected to the wedge-shaped adjustment seat 21 through the first transmission assembly 43, which is used to drive the wedge-shaped adjustment seat 21 to rotate. The output end of the second driving member 42 is connected to the wedge-shaped adjustment member 22 through the second transmission assembly 44, which is used to drive the wedge-shaped adjustment member 22 to rotate. Such an arrangement enables the rotation of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to be driven independently without affecting each other. Therefore, when adjusting the starting slope of the jacking pipe, the staff can either drive only the wedge-shaped adjustment seat 21 to rotate, or drive the wedge-shaped adjustment member 22 to rotate independently, or drive the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to rotate simultaneously, thereby further expanding the adjustable range of the starting slope of the jacking pipe. When the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 are driven to rotate simultaneously, the efficiency of adjusting the starting slope of the jacking pipe can also be improved, which is convenient for use on the construction site.

[0051] In this embodiment, refer to 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 driving member 41. The first rack 432 is arranged on the groove wall of the first mounting groove 212 and extends along the circumference of 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 driving member 42. The second rack 442 is arranged on the groove wall of the second mounting groove 221 and extends along the circumference of the second mounting groove 221. The first driving member 41 drives the first gear 431 to rotate. The first driving member 41 remains stationary. The first gear 431 will drive the first rack 432 to move along its extension direction. The first rack 432 drives the wedge-shaped adjustment seat 21 to rotate around the central axis of the first mounting groove 212. The rotation principle of the wedge-shaped adjustment member 22 is the same as that of the wedge-shaped adjustment seat 21, which will not be repeated here.

[0052] Exemplarily, both the first driving member 41 and the second driving member 42 are motors. The first driving member 41 is mounted on the base 1 , and the second driving 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 members 41 are arranged in the first installation groove 212, and the plurality of first driving members 41 are arranged at intervals along the circumference of the first installation groove 212. A plurality of second driving members 42 are arranged in the second installation groove 221, and the plurality of second driving members 42 are arranged at intervals along the circumference of the second installation groove 221. The weight of the launching frame 3 and the top pipe is relatively large. The arrangement of the plurality of first driving members 41 and the plurality of second driving members 42 can provide a large power for the rotation of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22, so that the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 can still rotate smoothly under the action of a large load.

[0054] Optionally, see Figure 2 The base 1 is provided with a vertically extending limit shaft 5, which is passed through the wedge-shaped adjustment seat 21, the wedge-shaped adjustment member 22 and the launcher 3, and the limit shaft 5 is rotationally matched with the wedge-shaped adjustment seat 21, the wedge-shaped adjustment member 22 and the launcher 3. With such a configuration, the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 can only rotate around the limit shaft 5 when rotating, so as to limit the movement of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 in the horizontal direction, and prevent the wedge-shaped adjustment member 22 from separating from the wedge-shaped adjustment seat 21, which affects the adjustment of the starting slope and the accuracy of the starting slope; the limit shaft 5 is passed through the launcher 3 and rotationally matched with the launcher 3, which can limit the movement of the launcher 3 in the horizontal direction, and avoid affecting the inclination of the launcher 3.

[0055] In this embodiment, refer to Figure 2 and Figure 4The end of the limiting shaft 5 is provided with a spherical limiting portion 51, and a through hole is provided on the launch frame 3. The spherical limiting portion 51 is located in the through hole, and the top of the spherical limiting portion 51 protrudes from the through hole. The outer wall of the spherical limiting portion 51 contacts and slides with the hole wall of the through hole. The outer wall of the spherical limiting portion 51 is an arc surface. Even if the spherical limiting portion 51 contacts the hole wall of the through hole, the outer wall of the spherical limiting portion 51 and the hole wall of the through hole can slide smoothly, and the tilting of the launch frame 3 will not be affected. The top of the spherical limiting portion 51 protrudes from the through hole. On the one hand, the portion of the spherical limiting portion 51 with the largest cross-sectional diameter along the launching direction can be located in the through hole, thereby preventing the spherical limiting portion 51 from being separated from the through hole and preventing the launching frame 3 from moving, thereby limiting the vertical and horizontal displacements of the launching frame 3. On the other hand, the top surface of the spherical limiting portion 51 is arc-shaped. Even if the top of the spherical limiting portion 51 protrudes from the through hole, the protruding portion of the spherical limiting portion 51 will not affect the movement of the jacking pipe on the launching frame 3, so that the jacking pipe can be smoothly ejected.

[0056] Exemplarily, the cross-sectional shapes of the first mounting groove 212 and the second mounting groove 221 are both circular rings, and the limiting member 6 passes through the inner holes of the annular first mounting groove 212 and the inner holes of the annular second mounting groove 221 .

[0057] In an alternative embodiment, see Figure 3 and Figure 5 A plurality of first ball grooves 213 are arranged on the first inclined surface 211 or the second inclined surface, a plurality of second ball grooves are arranged on the bottom of the wedge-shaped adjustment seat 21 or the base 1, a plurality of third ball grooves are arranged on the top of the wedge-shaped adjustment member 22 or the bottom of the launching frame 3, and a plurality of rollable balls are arranged in the first ball groove 213, the second ball groove and the third ball groove. By such arrangement, when the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 rotate, the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 can both drive the balls in the first ball groove 213 to roll, the wedge-shaped adjustment seat 21 can drive the balls in the second ball groove to rotate, and the wedge-shaped adjustment member 22 can drive the balls in the third ball groove to rotate, so as to reduce the friction between the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22, between the wedge-shaped adjustment seat 21 and the base 1, and between the wedge-shaped adjustment member 22 and the launching frame 3, reduce the power consumed by the rotating drive mechanism 4, and prevent the base 1, the wedge-shaped adjustment seat 21, the wedge-shaped adjustment member 22 and the launching frame 3 from being worn.

[0058] For example, see Figure 3 The cross-sectional shapes of the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 are both circular, and the cross-sectional shape of the first ball groove 213 is a circular ring. When a plurality of first ball grooves 213 are provided, the diameters of the first ball grooves 213 are different, and the plurality of first ball grooves 213 are arranged concentrically; when a plurality of second ball grooves and third ball grooves are provided, the arrangement method is the same as that of the first ball groove 213, and will not be repeated here.

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

[0060] In another optional embodiment, 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 launch frame 3, so as to reduce the friction between the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22, between the wedge-shaped adjustment seat 21 and the base 1, and between the wedge-shaped adjustment member 22 and the launch frame 3, reduce the power consumed by the rotation drive mechanism 4, and prevent the base 1, the wedge-shaped adjustment seat 21, the wedge-shaped adjustment member 22 and the launch frame 3 from being worn.

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

[0062] Optionally, see Figure 5 and Figure 6 A launching slot 31 extending along the launching direction is provided on the launching frame 3, and the jacking pipe can be installed in the launching slot 31. The slot wall of the launching slot 31 can constrain the moving direction of the jacking pipe so that the jacking pipe can only move along the launching direction.

[0063] In this embodiment, refer to Figure 6 The hole penetrates through the bottom wall of the launch slot 31 , and the top of the spherical limiting portion 51 protrudes from the bottom surface of the launch slot 31 .

[0064] Optionally, see Figure 4 and Figure 6 , the launcher 3 moves in a preset direction ( Figure 6 A plurality of stoppers 6 are provided on both sides of the launch frame 3 (in the Y direction), and the stoppers 6 on both sides of the launch frame 3 are arranged symmetrically, and the launch frame 3 is clamped by the stoppers 6 on both sides thereof to prevent the launch frame 3 from rotating during the rotation of the wedge-shaped adjustment member 22, thereby ensuring the stability of the installation of the launch frame 3 and the accuracy of the initial slope adjustment. Among them, the preset direction is perpendicular to the launch direction.

[0065] For example, see Figure 4 The limiting member 6 is a plate body, four limiting members 6 are provided, two limiting members 6 are provided on each side of the launching frame 3 along the preset direction, and the two limiting members 6 on each side of the launching frame 3 along the preset direction are spaced apart along the launching direction.

[0066] Embodiment 2

[0067] like Figure 7 As shown, this embodiment provides a method for adjusting the starting slope of a jacking pipe, using the jacking pipe starting slope adjusting device of embodiment 1 to adjust the starting slope of the jacking pipe, comprising the following steps:

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

[0069] 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 along the launching direction changes, and the wedge-shaped adjustment member 22 drives the launching frame 3 to tilt;

[0070] S3, after the inclination degree of the launch rack 3 along the launch direction is the same as the initial launch slope, the rotation drive mechanism 4 is controlled to stop driving the wedge-shaped adjustment seat 21 and the wedge-shaped adjustment member 22 to rotate;

[0071] S4. Use a lifting device such as a crane to install the jacking pipe into the launching slot 31 of the launching frame 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 embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A device for adjusting the starting slope of a jacking pipe, characterized in that: include: Base (1); An adjustment assembly (2) comprises a stacked wedge-shaped adjustment seat (21) and a wedge-shaped adjustment member (22), wherein the wedge-shaped adjustment seat (21) is rotatably arranged on the base (1) around a vertical direction, and the wedge-shaped adjustment member (22) is rotatably arranged on the wedge-shaped adjustment seat (21) around a vertical direction, and the rotation axis of the wedge-shaped adjustment seat (21) and the rotation axis of the wedge-shaped adjustment member (22) are colinear, the wedge-shaped adjustment seat (21) is provided with a first inclined surface (211) inclined vertically, and the wedge-shaped adjustment member (22) is provided with a second inclined surface having the same inclination as the first inclined surface (211), and the first inclined surface (211) is in contact with the second inclined surface; A launching frame (3) is arranged on the top of the wedge-shaped adjusting member (22) and is rotatably matched with the wedge-shaped adjusting member (22), and the launching frame (3) extends along the launching direction; A rotation drive mechanism (4) is arranged on the base (1) and connected to the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22), and is used for driving the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) to rotate.

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

3. The device for adjusting the starting slope of the jacking pipe according to claim 2, characterized in that: The first transmission assembly (43) comprises a first gear (431) and a first rack (432) meshing with each other, the first gear (431) being connected to the output end of the first driving member (41), the first rack (432) being arranged on the groove wall of the first mounting groove (212) and extending along the circumference of the first mounting groove (212); the second transmission assembly (44) comprises a second gear (441) and a second rack (442) meshing with each other, the second gear (441) being connected to the output end of the second driving member (42), the second rack (442) being arranged on the groove wall of the second mounting groove (221) and extending along the circumference of the second mounting groove (221).

4. The device for adjusting the starting slope of the jacking pipe according to claim 1, characterized in that: The base (1) is provided with a vertically extending limit shaft (5), the limit shaft (5) is passed through the wedge-shaped adjustment seat (21), the wedge-shaped adjustment member (22) and the launching frame (3), and the limit shaft (5) is rotatably matched with the wedge-shaped adjustment seat (21), the wedge-shaped adjustment member (22) and the launching frame (3).

5. The device for adjusting the starting slope of the jacking pipe according to claim 4, characterized in that: A spherical limiting portion (51) is provided at the end of the limiting shaft (5), a through hole is provided on the launching frame (3), the spherical limiting portion (51) is located in the through hole, and the top surface of the spherical limiting portion (51) protrudes from the through hole, and the outer wall of the spherical limiting portion (51) contacts and slidably fits with the hole wall of the through hole.

6. The device for adjusting the starting slope of the jacking pipe 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 adjustment seat (21) or the base (1), a plurality of third ball grooves are provided on the top of the wedge-shaped adjustment member (22) or the bottom of the launching frame (3), and a plurality of rollable balls are provided in the first ball groove (213), the second ball groove and the third ball groove.

7. The device for adjusting the starting slope of the jacking pipe 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 launch frame (3).

8. The device for adjusting the starting slope of a jacking pipe according to any one of claims 1 to 7, characterized in that: The launching frame (3) is provided with a launching slot (31) extending along the launching direction, and the top pipe can be installed in the launching slot (31).

9. The device for adjusting the starting slope of a jacking pipe according to any one of claims 1 to 7, characterized in that: The launch frame (3) is provided with a plurality of limit members (6) on both sides along a preset direction, and the limit members (6) on both sides of the launch frame (3) are symmetrically arranged, the launch frame (3) is clamped by the limit members (6) on both sides, and the preset direction is perpendicular to the launch direction.

10. A method for adjusting the starting slope of a pipe jacking, characterized in that: Using the jacking pipe starting slope adjustment device according to any one of claims 1 to 9 to adjust the starting slope of the jacking pipe comprises the following steps: S1. Determine the starting slope required for pipe jacking according to construction requirements; S2, controlling the rotation drive mechanism (4) to drive the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) to rotate, so that the thickness of the wedge-shaped adjustment seat (21) and the wedge-shaped adjustment member (22) changes along the launching direction, and the wedge-shaped adjustment member (22) drives the launching frame (3) to tilt; S3, after the inclination degree of the launching frame (3) along the launching direction is the same as the starting slope, the rotating drive mechanism (4) is controlled to stop driving the wedge-shaped adjusting seat (21) and the wedge-shaped adjusting member (22) to rotate.

Images