Correcting mechanism of rock tube push bench
By designing the deviation correction mechanism of the rock pipe hoist and using the expansion and hinge structure of the piston rod, the problem of uneven force under different rock conditions is solved, and the stable propulsion of the excavator and the improvement of construction quality is achieved.
Patent Information
- Application Number
- CN202422428960.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-09
AI Technical Summary
When the rock pipe header is advanced and excavated under different rock mass and strength conditions, the stress is uneven, resulting in large damage and offset in the excavation part, affecting the construction efficiency and quality.
A rock pipe header correction mechanism is designed, including an excavation part, a fixed shell, a movable shell, a deviation correction cylinder, a first hinge seat and a second hinge seat. The expansion and hinge structure of the piston rod are buffered and reset to ensure the stable advancement of the excavation part.
The buffering and correction of the rock pipe hoisting machine is achieved, the reliability and quality of construction is improved, the damage to the excavation part is reduced, and the accuracy and efficiency of construction is ensured.
Smart Images
Figure CN223089325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction equipment design, in particular to a deviation rectifying mechanism for a rock pipe jacking machine. Background Art
[0002] In the construction of projects such as tunnel construction, drainage pipeline construction, subway construction or coal mine construction, a rock pipe jacking machine is often used. The rock pipe jacking machine has a powerful drilling ability and can quickly penetrate rock layers of various hardnesses, improving the construction efficiency.
[0003] A rock pipe jacking machine usually has an excavation part. The excavation part can be advanced through a hydraulic system and rotates for excavation by relying on an electric motor system. However, it is found during actual processing that due to the different qualities and strengths of the rocks at different positions where it constructs, the forces on the rock pipe jacking machine are uneven during the advancement and excavation processes. If it is completely set as a fixed type without a buffering effect, it will cause greater damage to the excavation part, affecting the service life of the rock pipe jacking machine. And if the excavation part is set as a certain movable type, the excavation part of the rock pipe jacking machine is prone to move and deviate, affecting the construction efficiency and making it difficult to ensure the construction quality. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a deviation rectifying mechanism for a rock pipe jacking machine, which can solve one or more of the above problems.
[0005] According to one aspect of the utility model, a deviation rectifying mechanism for a rock pipe jacking machine is provided, including an excavation part, a fixed housing, a movable housing, a deviation rectifying oil cylinder, a first hinge seat and a second hinge seat. The excavation part is connected to the movable housing. The deviation rectifying oil cylinder includes a cylinder body and a piston rod. The piston rod is movably installed on the cylinder body. The first hinge seat is connected to the fixed housing, the second hinge seat is connected to the connecting housing, the cylinder body is hinged to the first hinge seat, and the piston rod is hinged to the second hinge seat.
[0006] The beneficial effect of the utility model is that in the utility model, when the excavation part excavates and advances, it can move forward together with the movable housing, and the movable housing can swing relative to the fixed housing instantaneously. Thus, the piston rod can retract to play a certain buffering role during the excavation and advancement process. And after the movable housing deviates, it can rely on the internal pressure of the deviation rectifying oil cylinder to make the piston rod extend to reset the movable housing, ensuring the advancement reliability of the utility model and thus ensuring the construction quality.
[0007] In some embodiments, there are multiple rectifying oil cylinders, first hinge seats, and second hinge seats. The cylinder bodies of the multiple rectifying oil cylinders are respectively and hingedly connected to the multiple first hinge seats one by one, and the piston rods of the multiple rectifying oil cylinders are respectively and hingedly connected to the multiple second hinge seats one by one. The arrangement of multiple rectifying oil cylinders can facilitate their coordinated cooperation to rectify the movable housing, improving the efficiency of rectification.
[0008] In some embodiments, the fixed housing is provided with a first cavity, and the movable housing is provided with a second cavity. The multiple first hinge seats are arranged equidistantly around the first cavity, and the multiple second hinge seats are arranged equidistantly around the second cavity.
[0009] In some embodiments, the present utility model further includes a first connecting block and a first pin shaft. The first hinge seat is provided with a first groove, the first pin shaft is installed on the first groove, one end of the first connecting block is connected to the cylinder body, and the other end extends into the first groove and is sleeved on the first pin shaft. The arrangement of the first connecting block and the first pin shaft can facilitate the hinged connection between the cylinder body and the first hinge seat, and the arrangement of the first groove can limit the first connecting block, enabling the first connecting block to perform only rotational movements as much as possible.
[0010] In some embodiments, the present utility model further includes a second connecting block and a second pin shaft. The second hinge seat is provided with a second groove, the second pin shaft is installed on the second groove, one end of the second connecting block is connected to the piston rod, and the other end extends into the second groove and is sleeved on the second pin shaft. The arrangement of the second connecting block and the second pin shaft can facilitate the hinged connection between the piston rod and the second hinge seat, and the arrangement of the second groove can limit the second connecting block, enabling the second connecting block to perform only rotational movements as much as possible.
[0011] In some embodiments, the fixed housing is provided with a recess, and the movable housing is provided with an extension portion, and the extension portion extends into the recess.
[0012] In some embodiments, there is a gap between the end of the extension portion and the bottom of the recess, and the gap is 18 mm to 22 mm. The setting of the gap can facilitate leaving a certain space for the movement of the movable housing, and the limitation of the size of the gap can prevent the excessive movement of the movable housing and its inability to effectively reset. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of a rectifying mechanism of a rock pipe jacking machine according to an embodiment of the present utility model.
[0014] Figure 2 It is an exploded view of the schematic structural diagram of a rectifying mechanism of a rock pipe jacking machine according to an embodiment of the present utility model.
[0015] Figure 3Exploded view of the structural schematic diagram of the deviation rectifying mechanism of a rock pipe jacking machine according to an embodiment of the present utility model.
[0016] Figure 4 Structural schematic diagram after the deviation rectifying oil cylinder, the first hinge seat and the second hinge seat of the deviation rectifying mechanism of a rock pipe jacking machine according to an embodiment of the present utility model are connected.
[0017] In the figure: 1. Excavation part, 2. Fixed housing, 3. Movable housing, 4. Deviation rectifying oil cylinder, 5. First hinge seat, 6. Second hinge seat, 7. First connecting block, 8. First pin shaft, 9. Second connecting block, 10. Second pin shaft, 21. First cavity, 22. Concave position, 31. Second cavity, 32. Extension part, 33. Gap, 41. Cylinder body, 42. Piston rod, 51. First groove, 61. Second groove. Specific embodiments
[0018] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0019] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A deviation rectifying mechanism of a rock pipe jacking machine according to the present utility model includes an excavation part 1, a fixed housing 2, a movable housing 3, a deviation rectifying oil cylinder 4, a first hinge seat 5 and a second hinge seat 6.
[0020] One end of the movable housing 3 is sleeved on one end of the excavation part 1 through a bearing so that the excavation part 1 and the movable housing 3 are connected, and the excavation part 1 can rotate on the movable housing 3.
[0021] There can be multiple deviation rectifying oil cylinders 4. In this embodiment, preferably four deviation rectifying oil cylinders 4 are provided. In each deviation rectifying oil cylinder 4, the deviation rectifying oil cylinder 4 includes a cylinder body 41 and a piston rod 42. Hydraulic oil can be loaded in the cylinder body 41, and one end of the piston rod 42 is movably installed on the cylinder body 41 through a piston, so that the piston rod 42 can perform telescopic movement on the cylinder body 41.
[0022] There can also be multiple first hinge seats 5 and second hinge seats 6. In this embodiment, preferably four first hinge seats 5 and four second hinge seats 6 are provided.
[0023] The fixed housing 2 is provided with a first cavity 21. Four first hinge seats 5 are arranged equidistantly around the first cavity 21, and the cylinder bodies 41 of the four deviation rectifying oil cylinders 4 are respectively hinged to the four first hinge seats 5.
[0024] The connection mode between the cylinder block 41 and the first hinge seat 5 is specifically as follows. The deviation rectifying mechanism of this rock pipe jacking machine includes a first connecting block 7 and a first pin shaft 8. A first groove 51 is provided on the first hinge seat 5, and the first pin shaft 8 is fixedly installed on the first groove 51. One end of the first connecting block 7 is fixedly connected to the bottom of the cylinder block 41 by screws, and the other end of the first connecting block 7 extends into the first groove 51, and this end of the first connecting block 7 is rotatably sleeved on the first pin shaft 8, thereby realizing the hinge connection between the cylinder block 41 and the first hinge seat 5.
[0025] The movable housing 3 is provided with a second cavity 31, and four second hinge seats 6 are equally spaced around the second cavity 31. The piston rods 42 of the four deviation rectifying cylinders 4 are respectively and correspondingly hinged to the four second hinge seats 6.
[0026] The connection mode between the piston rod 42 and the second hinge seat 6 is specifically as follows. The deviation rectifying mechanism of this rock pipe jacking machine includes a second connecting block 9 and a second pin shaft 10. A second groove 61 is provided on the second hinge seat 6, and the second pin shaft 10 is fixedly installed on the second groove 10. One end of the second connecting block 9 is connected to the other end of the piston rod 42, and the other end of the second connecting block 9 extends into the second groove 10, and this end of the second connecting block 9 is rotatably sleeved on the second pin shaft 9, thereby realizing the hinge connection between the piston rod 42 and the second hinge seat 6.
[0027] A recess 22 is provided on the side of the fixed housing 2. The end of the movable housing 3 that is not connected to the excavation part 1 is provided with an extension part 32. The extension part 32 extends into the recess 22, and there is a gap 33 between the end of the extension part 32 and the bottom of the recess 22. The size of the gap 33 can be about 18 mm to 22 mm. In this embodiment, the size of the gap 33 is preferably 20 mm.
[0028] In this utility model, when the excavation part 1 is advancing in excavation, when a strong impact is instantaneously received at a certain position of the excavation part 1, at this time, the adjacent connecting movable housing 3 at this position can be correspondingly displaced, and the movement of the movable housing 3 will correspondingly cause the piston rod 42 of the adjacent deviation rectifying cylinder 4 to retract, so as to buffer the impact.
[0029] And after the impact ends, under the internal pressure of the deviation rectifying cylinder 4, the piston rod 42 can correspondingly reset and extend to make the movable housing 3 reset, so as to effectively maintain the advancing direction of the excavation part 1 and ensure the accuracy of the excavation direction.
[0030] The above are only some embodiments of this utility model. For those of ordinary skill in the art, without departing from the creative concept of this utility model, several deformations and improvements can still be made, and these all belong to the protection scope of this utility model.
Claims
1. The deviation rectifying mechanism of the rock pipe jacking machine is characterized in that It includes a digging part, a fixed housing, a movable housing, a deviation rectifying oil cylinder, a first hinge seat and a second hinge seat. The digging part is connected to the movable housing. The deviation rectifying oil cylinder includes a cylinder block and a piston rod. The piston rod is movably installed on the cylinder block. The first hinge seat is connected to the fixed housing. The second hinge seat is connected to the connecting housing. The cylinder block is hinged to the first hinge seat. The piston rod is hinged to the second hinge seat.
2. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 1, characterized in that, There are multiple deviation rectifying oil cylinders, first hinge seats and second hinge seats. The cylinder blocks of the multiple deviation rectifying oil cylinders are respectively and correspondingly hinged to the multiple first hinge seats. The piston rods of the multiple deviation rectifying oil cylinders are respectively and correspondingly hinged to the multiple second hinge seats.
3. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 2, characterized in that, The fixed housing is provided with a first cavity. The movable housing is provided with a second cavity. The multiple first hinge seats are arranged equidistantly around the first cavity. The multiple second hinge seats are arranged equidistantly around the second cavity.
4. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 1, characterized in that, It includes a first connecting block and a first pin shaft. The first hinge seat is provided with a first groove. The first pin shaft is installed in the first groove. One end of the first connecting block is connected to the cylinder block, and the other end extends into the first groove and is sleeved on the first pin shaft.
5. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 1, characterized in that, It includes a second connecting block and a second pin shaft. The second hinge seat is provided with a second groove. The second pin shaft is installed in the second groove. One end of the second connecting block is connected to the piston rod, and the other end extends into the second groove and is sleeved on the second pin shaft.
6. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 1, characterized in that, The fixed housing is provided with a recess. The movable housing is provided with an extension part. The extension part extends into the recess.
7. The deviation rectifying mechanism of the rock pipe jacking machine according to claim 6, characterized in that, There is a gap between the end of the extension part and the bottom of the recess. The gap is 18 mm to 22 mm.