Pipe jacking machine with multi-degree-of-freedom anti-rotation deviation rectifying structure

Abstract

The utility model discloses a pipe push bench with a multi-degree-of-freedom anti-rotation deviation rectifying structure, which comprises a front shell and a rear shell, the front shell is hinged with the front end of a deviation rectifying oil cylinder, the tail end of the deviation rectifying oil cylinder is hinged on the rear shell, an anti-rotation component is arranged between the front shell and the rear shell, and the anti-rotation component is connected with the front shell and the rear shell. The anti-rotation assembly comprises anti-rotation clamping grooves, anti-rotation inserting blocks and anti-rotation clamping plates. The anti-rotation clamping grooves are formed in the two sides of the front-section shell in a bilateral symmetry mode with the axis of the front-section shell as the center. The width of the anti-rotation inserting blocks is smaller than the width of the opening of the anti-rotation clamping groove, and the anti-rotation inserting blocks are arranged on the two sides of the rear-section shell in a bilateral symmetry mode with the axis of the rear-section shell as the center. The anti-rotation clamping plate is hinged to the tail end of the pin shaft and connected into the anti-rotation clamping groove in a sliding mode. According to the pipe jacking machine, the reaction torque of the cutter head can be evenly transmitted, the reliability of the deviation rectifying structure of the pipe jacking machine is improved, faults such as oil leakage and damage caused by the torque effect on the deviation rectifying oil cylinder are prevented, and the working effect of the deviation rectifying structure of the pipe jacking machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline laying construction equipment, and in particular to a pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure. Background Art

[0002] The pipe jacking machine is a kind of equipment for trenchless pipeline laying construction, which can be used for the construction of various pipelines crossing rivers, roads, railways and buildings. Its jacking direction is adjusted by the correction system. The correction cylinder can correct the jacking direction of the machine head to ensure that the construction trajectory meets the design requirements. The first section of the shell is connected to the second section of the shell by a correction cylinder, and the anti-torque of the cutter disc is generally transmitted through the anti-rotation pin. However, during the construction process, the anti-rotation pin of the correction structure of the existing pipe jacking machine has the following problems: 1. The anti-rotation pin slot and the pin of the current correction structure are welded to the first section of the shell and the second section of the shell respectively, and the gap cannot be adjusted. Multiple sets of anti-rotation pins cannot evenly transmit the driving torque; 2. The anti-rotation pin slot and the pin of the current correction structure are in line contact, and there is stress concentration. The slot and the pin are easily deformed and broken, causing the anti-rotation pin of the correction structure to fail, and then causing the correction cylinder to leak oil and be damaged by the torque. Summary of the invention

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides a pipe jacking machine with a multi-degree-of-freedom anti-rotation and correction structure, which can evenly transmit the cutter disc anti-torque, improve the reliability of the pipe jacking machine's correction structure, prevent the correction cylinder from being subjected to torque and causing oil leakage, damage and other faults, thereby ensuring the working effect of the pipe jacking machine's correction structure.

[0004] The utility model is realized through the following technical solutions:

[0005] A pipe jacking machine with a multi-degree-of-freedom anti-rotation and correcting structure comprises a front section shell body and a rear section shell body, the front section shell body is hinged to the front end of the correcting oil cylinder, the rear end of the correcting oil cylinder is hinged to the rear section shell body, an anti-rotation component is provided between the front section shell body and the rear section shell body, the anti-rotation component comprises an anti-rotation slot, an anti-rotation plug-in block and an anti-rotation card plate, the anti-rotation slot is symmetrically arranged on both sides of the front section shell body with the axis line of the front section shell body as the center; the width of the anti-rotation plug-in block is smaller than the opening width of the anti-rotation slot, and is symmetrically arranged on both sides of the rear section shell body with the axis line of the rear section shell body as the center; the anti-rotation card plate is hinged at the rear end of the pin shaft and is slidably connected in the anti-rotation slot; in this technical scheme, the anti-rotation plug-in block installed on the rear section shell body is slidably connected to the anti-rotation card plate by being hinged at the rear end It is connected to the anti-rotation slot fixed on the front shell body to transmit torsional force. If the pipe jacking machine is corrected in the horizontal direction, the axes of the front shell body and the rear shell body will form an angle in the horizontal direction, and the anti-rotation card plate can rotate around the axis of the pin shaft and slide axially along the anti-rotation slot. If the pipe jacking machine is corrected in the vertical direction, the axes of the front shell body and the rear shell body will form an angle in the vertical direction, and the anti-rotation card plate will slide radially in the anti-rotation slot, thereby realizing gap adjustment. The multi-degree-of-freedom cooperates with the deflection correction structure to realize gap adjustment and prevent the phenomenon of uneven transmission of driving torque. It can also avoid the traditional anti-rotation pin slot and the pin being connected in the form of line contact, eliminate the situation of local stress concentration, improve the reliability and stability of the operation of the correction structure, effectively protect the correction cylinder, and prevent the driving torque from damaging the correction cylinder.

[0006] Preferably, the anti-rotation slot includes two abutment plates arranged in parallel, and a connecting plate is provided between the two abutment plates; in the present technical solution, the anti-rotation slot is composed of two abutment plates arranged in parallel, has a simple structure, and is easy to manufacture and process. It can be welded to the front shell, and the connecting plate can improve the overall structural strength of the anti-rotation slot and increase the ability of the anti-rotation slot to bear torsional loads.

[0007] Preferably, a pin hole is provided at the rear end of the anti-rotation block, and a pin shaft is provided in the pin hole; the anti-rotation clamping plate is hinged on the pin shaft; in the present technical solution, the pin hole is pre-machined on the anti-rotation block, which can improve the installation accuracy of the pin shaft, and the pin shaft can be inserted in the pin hole and then fixed to the anti-rotation block by welding, which can improve the connection strength between the pin shaft and the anti-rotation block and increase the ability of the pin shaft to withstand torsional loads.

[0008] Further preferably, the pin shaft is welded in the pin hole; in this technical solution, the use of welding can ensure the reliability of the connection between the pin shaft and the anti-rotation plug block.

[0009] Preferably, a pressure plate is provided on the pin shaft, and the pressure plate is detachably connected to the pin shaft; in the present technical solution, the pressure plate can limit the anti-rotation plate to prevent the anti-rotation plate from falling off the pin shaft; the pressure plate is detachably connected to the pin shaft, which can facilitate the maintenance and replacement of the anti-rotation plate at a later time.

[0010] Preferably, a threaded hole is provided at the top of the pin shaft, and the pressure plate is fixed to the pin shaft by a fastening bolt arranged in the threaded hole; in this technical solution, the pressure plate is fixed to the pin shaft by bolts, which has a simple structure and is easy to process.

[0011] Preferably, an oil storage chamber is provided at the bottom of the threaded hole, and a grease channel is provided on the side wall of the oil storage chamber; in the present technical solution, the oil storage chamber is used to store grease, and the mechanical contact surface can be lubricated through the grease channel to reduce mechanical friction and improve the smoothness of component operation and service life.

[0012] Preferably, the side wall of the pin shaft is provided with a plurality of lubrication grooves, and the lubrication grooves are filled with lubricating grease; in the present technical solution, the lubrication grooves can temporarily reserve a certain amount of lubricating grease, and can be connected to the grease channel.

[0013] Compared with the prior art, the beneficial effects of the utility model are: 1. The deviation correction structure of the pipe jacking machine is provided with an anti-rotation component, and the anti-rotation component can realize gap adjustment, and the multiple degrees of freedom cooperate with the deflection of the deviation correction structure to realize gap adjustment and prevent the phenomenon of uneven transmission of driving torque; 2. The anti-rotation component of the pipe jacking machine can avoid the traditional anti-rotation pin slot and the pin being connected in the form of line contact, eliminate the situation of local stress concentration, improve the reliability and stability of the deviation correction structure operation, effectively protect the deviation correction cylinder, and prevent the driving torque from damaging the deviation correction cylinder; 3. The anti-rotation component of the pipe jacking machine has a simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial structural schematic diagram of a pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure described in Example 1;

[0015] Figure 2 is a schematic structural diagram of the anti-rotation assembly in Embodiment 1;

[0016] Figure 3 It is a schematic diagram of a pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation correction structure in a vertical direction deviation correction state described in Example 1;

[0017] Figure 4 It is a schematic diagram of a pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation correction structure in a horizontal direction correction state described in Example 1;

[0018] Figure 5It is a schematic diagram of the structure of the pin shaft described in Example 1;

[0019] In the figure: 1. front housing; 2. anti-rotation assembly; 21. anti-rotation slot; 211. abutment plate; 212. connecting plate; 22. anti-rotation plate; 23. pin; 231. threaded hole; 232. oil storage chamber; 233. lubrication groove; 234. grease channel; 24. anti-rotation plug; 241. pin hole; 25. pressure plate; 26. fastening bolt; 3. rear housing; 4. driving mechanism; 5. deviation correction cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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, an electrical connection, or mutual communication; 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 utility model can be understood according to specific circumstances.

[0023] In the present utility model, 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. Embodiment 1

[0024] like Figures 1 to 5 As shown, a pipe jacking machine with a multi-degree-of-freedom anti-rotation and correction structure includes a front shell 1 and a rear shell 3, the front shell 1 is provided with a drive mechanism 4 for a cutter disc, and the tail end is hinged with the front end of a correction cylinder 5; the tail end of the correction cylinder 5 is hinged on the rear shell 3; because the cutter disc needs to bear the torsional moment when it is running, an anti-rotation component 2 is provided between the front shell 1 and the rear shell 3, and the anti-rotation component 2 includes an anti-rotation slot 21, an anti-rotation plug 24 and an anti-rotation card plate 22, the anti-rotation slot 21 is symmetrically arranged on both sides of the front shell 1 with the axis of the front shell as the center; the width of the anti-rotation plug 24 is smaller than the opening width of the anti-rotation slot, and is symmetrically arranged on both sides of the rear shell 3 with the axis of the rear shell 3 as the center; the anti-rotation card plate 22 is hinged at the tail end of the pin shaft, and is slidably connected in the anti-rotation slot 21; wherein, the anti-rotation card plate 22 is installed in the rear shell The anti-rotation block 24 on the body 3 is slidably connected to the anti-rotation slot 21 fixed on the front section shell body 1 through the anti-rotation card plate 22 hinged at its rear end, which is used to transmit torsional force. If the pipe jacking machine is corrected in the horizontal direction, the axis of the front section shell body 1 and the rear section shell body 3 will form an angle in the horizontal direction, and the anti-rotation card plate 22 can rotate around the axis of the hinge pin shaft 23 and slide axially along the anti-rotation slot 21. If the pipe jacking machine is corrected in the vertical direction, the axis of the front section shell body 1 and the rear section shell body 3 will form an angle in the vertical direction, and the anti-rotation card plate 22 will slide radially in the anti-rotation slot 21, thereby realizing multi-degree-of-freedom gap adjustment, cooperating with the deflection correction structure to prevent uneven transmission of driving torque, and avoiding the connection of the traditional anti-rotation pin slot and the pin in the form of line contact, eliminating the situation of local stress concentration, improving the reliability and stability of the operation of the correction structure, effectively protecting the correction cylinder, and preventing the driving torque from damaging the correction cylinder.

[0025] Preferably, the anti-rotation slot 21 includes two parallel abutment plates 211, and a connecting plate 212 is provided between the two abutment plates 211, and the two parallel abutment plates can be welded to the front section shell body, and the connecting plate 212 can improve the overall structural strength of the anti-rotation slot and increase the ability of the anti-rotation slot to bear torsional loads; the tail end of the anti-rotation plug 24 is provided with a pin hole 241, and a pin shaft 23 is provided in the pin hole 241; the anti-rotation card plate 22 is hinged on the pin shaft 23, and the pin hole 241 is pre-machined on the anti-rotation plug 24, which can improve the installation accuracy of the pin shaft 23, and the pin shaft 23 can be inserted in the pin hole 241, and then fixed to the anti-rotation plug by welding, which can improve the connection strength between the pin shaft 23 and the anti-rotation plug 24 and increase the ability of the pin shaft to bear torsional loads; a pressure plate 25 is provided on the pin shaft 23, and the pressure plate 2 The anti-rotation card plate 22 can be limited to prevent the anti-rotation card plate 22 from falling off the pin shaft 23; the pressure plate is detachably connected to the pin shaft, which can facilitate the maintenance and replacement of the anti-rotation card plate in the later stage. Specifically, a threaded hole 231 is provided at the top of the pin shaft 23, and the pressure plate 25 is fixed on the pin shaft by a fastening bolt 26 arranged in the threaded hole 231; further, an oil storage chamber 232 is provided at the bottom of the threaded hole 231, and a grease channel 234 is provided on the side wall of the oil storage chamber 232. The oil storage chamber 232 is used to store lubricating grease, and the mechanical contact surface of the pin shaft 23 can be lubricated through the grease channel 234 to reduce mechanical friction and improve the smoothness and service life of the parts; a plurality of lubrication grooves 233 are provided on the side wall of the pin shaft 23, which can be communicated with the grease channel 234 and can temporarily store a certain amount of lubricating grease.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure, comprising a front section housing and a rear section housing, wherein the front section housing is hinged to the front end of a deviation-correcting oil cylinder, and the rear end of the deviation-correcting oil cylinder is hinged to the rear section housing, characterized in that: An anti-rotation component is provided between the front section shell and the rear section shell, and the anti-rotation component includes an anti-rotation slot, an anti-rotation plug-in block and an anti-rotation plate. The anti-rotation slot is symmetrically arranged on both sides of the front section shell with the axis line of the front section shell as the center; the width of the anti-rotation plug-in block is smaller than the opening width of the anti-rotation slot, and is symmetrically arranged on both sides of the rear section shell with the axis line of the rear section shell as the center; the anti-rotation plate is hinged at the tail end of the pin shaft and is slidably connected in the anti-rotation slot.

2. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 1 is characterized in that: The anti-rotation slot includes two abutment plates arranged in parallel, and a connecting plate is provided between the two abutment plates.

3. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 1 is characterized in that: A pin hole is provided at the rear end of the anti-rotation plug block, a pin shaft is provided in the pin hole; and the anti-rotation clamping plate is hinged on the pin shaft.

4. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 3 is characterized in that: The pin shaft is welded in the pin hole.

5. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 1 is characterized in that: A pressing plate is arranged on the pin shaft, and the pressing plate is detachably connected to the pin shaft.

6. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 5 is characterized in that: A threaded hole is provided on the top of the pin shaft, and the pressure plate is fixed on the pin shaft by a fastening bolt arranged in the threaded hole.

7. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 6 is characterized in that: An oil storage cavity is provided at the bottom of the threaded hole, and a grease channel is provided on the side wall of the oil storage cavity.

8. The pipe jacking machine with a multi-degree-of-freedom anti-rotation and deviation-correcting structure according to claim 1 is characterized in that: The side wall of the pin shaft is provided with a plurality of lubrication grooves, and the lubrication grooves are filled with lubrication grease.

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