Deviation rectifying device of tube push bench

Abstract

The invention relates to the technical field of deviation rectifying devices, and discloses a tube push bench deviation rectifying device which comprises a plurality of deviation rectifying mechanisms arranged on a tube push bench body and used for adjusting the direction of the tube push bench body and further comprises at least two sets of protection mechanisms located on the tube push bench body, and the deviation rectifying mechanisms are located between the two sets of protection mechanisms and used for adjusting the direction of the tube push bench body. The protection mechanism component is used for driving the deviation rectifying mechanism to move in the direction of the cross section of the pipe jacking machine body so that the deviation rectifying mechanism can reach different positions, the self-locking mechanism is used for controlling whether the deviation rectifying mechanism moves along with the protection mechanism component or not, and when the deviation rectifying mechanism does not move along with the protection mechanism component, the mechanism locks the two ends of the deviation rectifying mechanism to the pipe jacking machine body for deviation rectifying. The positions of the deviation rectifying mechanisms are adjusted in a sliding mode, so that the deviation rectifying mechanisms can move to different directions of the cross section of the tube push bench body, the utilization rate of all the deviation rectifying mechanisms is kept at an average value, and serious loss of individual deviation rectifying mechanisms is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deviation rectification devices, in particular to a pipe jacking machine deviation rectification device. BACKGROUND

[0002] When the pipe jacking machine passes through a soil layer with uneven soil (such as homogeneous clay and sand layer), the force around the pipe is not balanced, which leads to the risk of deviation due to soil layer differences. The outer shield of the pipe jacking machine includes a front shield, a middle shield and a tail shield, and the tail shield is connected with the first section of the pipe laid.

[0003] The main function of the deviation rectification device is to rectify the deviation if the axis deviates by a certain angle during the pushing process, so as to correct the posture of the rectangular pipe. The common deviation rectification device is an active hinged deviation cylinder. The front shield and the middle shield are fixedly connected, the middle shield and the tail shield can move within a certain range, one end of the active hinged deviation cylinder is connected to the front shield, and the other end is connected to the tail shield; a plurality of deviation cylinders are arranged along the cross section of the tail shield, and the arrangement of the deviation cylinders mainly considers the rationality of the structure to meet the effect of up and down and left and right deviation of the front shield. For example, if the pipe jacking machine deviates downward, it needs to be rectified upward, and the bottom cylinder group or the two side deviation cylinders are also involved in jacking to improve the pushing force.

[0004] In the prior art, when laying some soil layers, due to the soil quality, the pipe jacking machine will always deviate to one side, which leads to high utilization rate of the deviation cylinder on one side and low utilization rate of the deviation cylinder on the other side. The unilateral deviation cylinder is greatly worn, and the maintenance interval of the equipment is short. SUMMARY

[0005] The purpose of the present application is to provide a pipe jacking machine deviation rectification device to solve the problems in the prior art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a pipe jacking machine deviation rectification device, comprising: A deviation rectification mechanism is provided, which is arranged on the pipe jacking machine body and used for adjusting the direction of the pipe jacking machine body. A protection mechanism is provided, which is arranged on the pipe jacking machine body and used for driving the deviation rectification mechanism to move along the cross section direction of the pipe jacking machine body, so that the deviation rectification mechanism can reach different positions. A self-locking mechanism is arranged, which is used for controlling whether the deviation rectification mechanism moves with the protection mechanism, and locking the two ends of the deviation rectification mechanism on the pipe jacking machine body when not moving, so as to rectify the deviation.

[0007] Further, the pipe jacking machine body includes a front shield, a middle shield and a tail shield, the front shield and the middle shield are fixedly connected, the middle shield and the tail shield are movably connected, and the tail shield is connected with the first section of the pipe laid.

[0008] Furthermore, the two sets of protection mechanisms are respectively located on the middle shield or the tail shield. Each protection mechanism includes a support frame, which is fixed on the corresponding middle shield or tail shield. The support frame is equipped with a motor, a slide, a chain, and several rotating shafts. The several rotating shafts are arranged along the inner side of the slide. Each rotating shaft is coaxially equipped with a sprocket, with a gap between adjacent sprockets. The output shaft of the motor is connected to one of the rotating shafts. The chain meshes with the outer side of the several sprockets, so that the movement trajectory of the chain matches the movement trajectory of the correction mechanism in the slide.

[0009] Furthermore, the correction mechanism includes a correction cylinder, with an active hinge base at each end of the correction cylinder. The active hinge base is provided with a sliding shaft, and the sliding shaft is provided with a limiting block. The sliding shaft is restricted in the slide groove by the active hinge base and the limiting block.

[0010] Furthermore, the self-locking mechanism includes a double-outlet cylinder, several positioning seats one and positioning seats two. The double-outlet cylinder is set on the limiting block. The positioning seats one is located at the corresponding correction cylinder arrangement point on the support frame. Each link of the chain is provided with at least one positioning seat two. One end of the double-outlet cylinder is inserted into the positioning seat one or the positioning seat two.

[0011] Furthermore, the positioning seat one and the positioning seat two are respectively provided with insertion hole one and insertion hole two. The direction of insertion hole one is set according to the location of the positioning seat one, so that the corresponding output shaft of the double output shaft cylinder is tightly inserted into insertion hole one.

[0012] Furthermore, the aforementioned correction mechanisms are divided into four groups, arranged at the top, bottom, and both sides along the cross-sectional direction of the pipe jacking machine body.

[0013] Furthermore, there are 28 correction cylinders, with 8 correction cylinders at the top, 12 correction cylinders at the bottom, and 4 correction cylinders on each side along the cross-sectional direction of the pipe jacking machine body.

[0014] Furthermore, the correction angle of the correction mechanism is 1.2° left and right and 2° up and down.

[0015] Furthermore, the total thrust of the 28 correction cylinders is 8972t.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention includes several correction mechanisms mounted on the main body of a pipe jacking machine for adjusting its orientation. It also includes at least two sets of protective mechanisms located on the main body, with the correction mechanisms positioned between them. These mechanisms move along the cross-sectional direction of the pipe jacking machine body, allowing them to reach different positions. The invention further includes a self-locking mechanism to control whether the correction mechanism follows the movement of the protective mechanisms. When not following, this mechanism locks both ends of the correction mechanism onto the pipe jacking machine body for correction. By sliding and adjusting the position of the correction mechanisms, this invention allows them to move to different directions along the cross-section of the pipe jacking machine body, maintaining the utilization rate of all correction mechanisms at an average level and reducing severe wear and tear on individual correction mechanisms. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the pipe jacking machine body in one embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the cross-section of the tail shield in one embodiment of the present invention; Figure 4 This is a truncated plan view according to one embodiment of the present invention; Figure 5 This is a truncated perspective view according to one embodiment of the present invention; Figure 6 for Figure 5 Enlarged view at point B in the middle; In the diagram: 1. Correction mechanism; 2. Pipe jacking machine body; 3. Protection mechanism; 4. Self-locking mechanism; 10. Correcting cylinder; 11. Active hinged base; 12. Sliding shaft; 13. Limit block; 20. Front shield; 21. Middle shield; 22. Tail shield; 30. Support frame; 31. Motor; 32. Slide rail; 33. Chain; 34. Shaft; 35. Sprocket; 40. Double-output cylinder; 41. Positioning seat one; 42. Positioning seat two; 43. Insertion hole one; 44. Insertion hole two. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] See Figures 1-6The present invention provides a technical solution: a pipe jacking machine correction device, comprising: a correction mechanism 1, wherein a plurality of such mechanisms are provided and disposed on the pipe jacking machine body 2, for adjusting the direction of the pipe jacking machine body 2; The protection mechanism 3 is provided in at least two sets, located on the adjusting pipe jacking machine body 2. The correction mechanism 1 is located between the two sets of protection mechanisms 3, and is used to drive the correction mechanism 1 to move along the cross-sectional direction of the pipe jacking machine body 2 so that the correction mechanism 1 can reach different positions. The self-locking mechanism 4 is used to control whether the correction mechanism 1 moves with the protection mechanism 3, and when it does not move with the correction mechanism 1, it locks both ends of the correction mechanism 1 onto the pipe jacking machine body 2 for correction.

[0020] Furthermore, the pipe jacking machine body 2 includes a front shield 20, a middle shield 21 and a tail shield 22. The front shield 20 and the middle shield 21 are fixedly connected, the middle shield 21 is movably connected to the tail shield 22, and the tail shield 22 is connected to the first section of pipe being laid.

[0021] It should be noted that several correction mechanism 1 locations are set along the cross-sectional direction of the pipe jacking machine body 2. When the correction mechanism 1 is fixed at the corresponding location, refer to... Figure 3 The location of the correction mechanism 1 is indicated by the markings on the sliding shaft 12 to ensure its corrective function. Of the two sets of protection mechanisms 3, one set is located on the middle shield 21 and the other set is located on the tail shield 22. The two ends of the correction mechanism 1 slide within the protection mechanisms 3 at both ends. By adjusting the position of the correction mechanism 1 through sliding, it can be moved to different directions of the cross-section of the pipe jacking machine body 2, maintaining the utilization rate of all correction mechanisms 1 at an average value and reducing severe wear and tear on individual correction mechanisms 1.

[0022] Furthermore, the two sets of protection mechanisms 3 are respectively located on the middle shield 21 or the tail shield 22. Each protection mechanism 3 includes a support frame 30, which is fixed on the corresponding middle shield 21 or tail shield 22. The support frame 30 is provided with a motor 31, a slide 32, a chain 33, and several rotating shafts 34. The several rotating shafts 34 are arranged along the inner side of the slide 32. A sprocket 35 is coaxially provided on each rotating shaft 34. There is a gap between two adjacent sprockets 35. The output shaft of the motor 31 is connected to one of the rotating shafts 34. The chain 33 is engaged on the outer side of the several sprockets 35, so that the movement trajectory of the chain 33 is adapted to the movement trajectory of the correction mechanism 1 in the slide 32.

[0023] This design, for reference Figure 2 and Figures 4-6The support frame 30 is equipped with several sprockets 35 to outline the rotation trajectory of the chain 33, so that during the rotation of the correction mechanism 1 driven by the chain 33, the rotation trajectory of the correction mechanism 1 coincides with the trajectory of the slide groove 32, thereby improving the smoothness of the correction mechanism 1 when moving in the slide groove 32; the output shaft of the motor 31 drives a sprocket 35 connected to it to rotate, the sprocket 35 drives the chain 33 to rotate, and the chain 33 drives all the sprockets 35 to rotate synchronously, thereby realizing the transmission of power; the output shaft of the motor 31 can rotate in the opposite direction.

[0024] Furthermore, the correction mechanism 1 includes a correction cylinder 10, with an active hinge base 11 at each end of the correction cylinder 10. The active hinge base 11 is provided with a sliding shaft 12, and the sliding shaft 12 is provided with a limiting block 13. The sliding shaft 12 is restricted in the slide groove 32 by the active hinge base 11 and the limiting block 13.

[0025] This design, for reference Figure 6 The correction cylinder 10 is telescopic because it is provided with an active hinge base 11 at each end, which realizes the active hinge of the correction cylinder 10 and better adjusts the adjustment angle of the correction cylinder 10; and through the groove formed by the active hinge base 11, the sliding shaft 12 and the limiting block 13, the correction cylinder 10 is restricted to slide along the slide groove 32, but will not separate from the slide groove 32.

[0026] Furthermore, the self-locking mechanism 4 includes a double-outlet cylinder 40, several positioning seats 1 41 and positioning seats 2 42. The double-outlet cylinder 40 is disposed on the limiting block 13. The positioning seats 1 41 are located at the corresponding positioning points of the correction cylinders 10 on the support frame 30. Each link of the chain 33 is provided with at least one positioning seat 2 42. One end of the double-outlet cylinder 40 is inserted into the positioning seat 1 41 or the positioning seat 2 42.

[0027] Furthermore, the positioning seat 41 and the positioning seat 42 are respectively provided with insertion hole 43 and insertion hole 44. The direction of insertion hole 43 is set according to the location of the positioning seat 41, so that the corresponding output shaft of the double output shaft cylinder 40 is tightly inserted into insertion hole 43.

[0028] This design, for reference Figures 5-6When one end of the double-outlet cylinder 40 is fully extended, the other end is fully retracted. The two ends of the double-outlet cylinder 40 are end a and end b, respectively. 1. When end a is inserted into the positioning seat 1 41, end b must be separated from the positioning seat 2 42. Due to the restriction of the insertion hole 1 43, the double-outlet cylinder 40 and the correction mechanism 1 are fixed at a certain arrangement point of the correction mechanism 1 on the support frame 30. Here, end a of the double-outlet cylinder 40 is tightly inserted into the insertion hole 1 43. Tight insertion means that the two are in close contact to avoid loose connection and shaking. 2. When end b is inserted into the positioning seat 2 42, end a must be separated from the positioning seat 1 41. Due to the restriction of the insertion hole 2 44, the double-outlet cylinder 40, the correction mechanism 1 and the positioning seat 2 42 are driven by the chain 33 to move forward along the slide groove 32. Because the distance between the two correction mechanisms 1 at the arrangement points is not fixed, during the process of adjusting the position of the correction mechanism 1, that is, during the process of the chain 33 driving the correction mechanism 1 forward, when some correction mechanisms 1 reach the adjusted target arrangement point, in order not to affect the movement of the remaining correction mechanisms 1, end a needs to be inserted into the positioning seat 41 to fix the correction mechanism 1 that has reached the target arrangement point. Then, the motor 31 continues to rotate forward or reverse to adjust the remaining correction mechanisms 1 to move to the target arrangement point. In this process, the correction mechanisms 1 may be fixed in multiple batches, and the motor 31 may need to be flipped. Through the design of the target arrangement point and the design of the rotation direction and mileage of the motor 31, the situation where any two double-output shaft cylinders 40 need to be placed side by side can be avoided, thus avoiding the need for the correction mechanism 1 to be flipped. Through the design of the target arrangement point and the design of the rotation direction of the motor 31, the correction mechanism 1 can be prevented from being trapped on the track and unable to be adjusted during the adjustment process.

[0029] Furthermore, the aforementioned correction mechanisms 1 are divided into four groups, arranged at the top, bottom, and sides along the cross-sectional direction of the pipe jacking machine body 2.

[0030] Furthermore, there are 28 correction cylinders 10, with 8 correction cylinders 10 arranged at the top, 12 correction cylinders 10 arranged at the bottom, and 4 correction cylinders 10 arranged on each side along the cross-sectional direction of the pipe jacking machine body 2.

[0031] Furthermore, the correction angle of the correction mechanism 1 is 1.2° left and right and 2° up and down.

[0032] Furthermore, the total thrust of the 28 correction cylinders 10 is 8972t.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0034] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more.

[0036] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A pipe jacking machine correction device, characterized in that, include: The correction mechanism (1) is provided in several parts and is set on the pipe jacking machine body (2) to adjust the direction of the pipe jacking machine body (2); The protection mechanism (3) is provided in at least two sets, located on the adjusting pipe jacking machine body (2). The correction mechanism (1) is located between the two sets of protection mechanisms (3) and is used to drive the correction mechanism (1) to move along the cross-sectional direction of the pipe jacking machine body (2) so that the correction mechanism (1) can reach different positions. The self-locking mechanism (4) is used to control whether the correction mechanism (1) moves with the protection mechanism (3), and when it does not follow, it locks both ends of the correction mechanism (1) onto the pipe jacking machine body (2) for correction.

2. The pipe jacking machine correction device according to claim 1, characterized in that, The main body (2) of the pipe jacking machine includes a front shield (20), a middle shield (21) and a tail shield (22). The front shield (20) and the middle shield (21) are fixedly connected. The middle shield (21) and the tail shield (22) are movably connected. The tail shield (22) is connected to the first section of pipe being laid.

3. The pipe jacking machine correction device according to claim 2, characterized in that, The two sets of protection mechanisms are located on the middle shield (21) or the tail shield (22) respectively. The protection mechanism (3) includes a support frame (30), which is fixed on the corresponding middle shield (21) or tail shield (22). The support frame (30) is provided with a motor (31), a slide (32), a chain (33) and several rotating shafts (34). Several rotating shafts (34) are arranged along the inner side of the slide (32). A sprocket (35) is coaxially provided on the rotating shaft (34). There is a gap between two adjacent sprockets (35). The output shaft of the motor (31) is connected to one of the rotating shafts (34). The chain (33) meshes with the outer side of several sprockets (35) so that the movement trajectory of the chain (33) matches the movement trajectory of the correction mechanism (1) in the slide (32).

4. The pipe jacking machine correction device according to claim 3, characterized in that, The correction mechanism (1) includes a correction cylinder (10), and each end of the correction cylinder (10) is provided with an active hinge base (11). The active hinge base (11) is provided with a sliding shaft (12), and the sliding shaft (12) is provided with a limiting block (13). The sliding shaft (12) is restricted in the slide groove (32) by the active hinge base (11) and the limiting block (13).

5. The pipe jacking machine correction device according to claim 4, characterized in that, The self-locking mechanism (4) includes a double-outlet cylinder (40), several positioning seats one (41) and positioning seats two (42). The double-outlet cylinder (40) is set on the limiting block (13). The positioning seat one (41) is located at the corresponding positioning point of the correction cylinder (10) on the support frame (30). Each link of the chain (33) is provided with at least one positioning seat two (42). One end of the double-outlet cylinder (40) is inserted into the positioning seat one (41) or the positioning seat two (42).

6. The pipe jacking machine correction device according to claim 1, characterized in that, The positioning seat one (41) and positioning seat two (42) are respectively provided with insertion hole one (43) and insertion hole two (44). The direction of insertion hole one (43) is set according to the arrangement point of positioning seat one (41) so that the corresponding output shaft of the double output shaft cylinder (40) is tightly inserted into insertion hole one (43).

7. The pipe jacking machine correction device according to claim 1, characterized in that, The aforementioned correction mechanisms (1) are divided into four groups, arranged at the top, bottom and sides respectively along the cross-sectional direction of the pipe jacking machine body (2).

8. The pipe jacking machine correction device according to claim 4, characterized in that, There are 28 correction cylinders (10). Along the cross-sectional direction of the pipe jacking machine body (2), 8 correction cylinders (10) are set at the top, 12 correction cylinders (10) are set at the bottom, and 4 correction cylinders (10) are set on each side.

9. The pipe jacking machine correction device according to claim 1, characterized in that, The correction angle of the correction mechanism (1) is 1.2° left and right and 2° up and down.

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