A municipal road pipe jacking hole expansion device

Abstract

The invention discloses a municipal road jacking pipe hole expanding device, which belongs to the technical field of jacking pipe construction, and comprises a support cylinder, wherein the support cylinder is connected with a hole expanding component; the hole expanding component comprises a driving component, a male hole expanding component and a water supply component, wherein the driving component and the male hole expanding component are both connected with the support cylinder, the driving component is movably connected with the male hole expanding component, and the center of the male hole expanding component is connected with the water supply component; a slurry outlet hole is provided at the lower end of the side wall of the support cylinder away from the hole expanding component, and a slurry outlet pipe is fixedly connected to the outer end of the slurry outlet hole; the hole expanding end of the male hole expanding component is also connected with a self-expanding component along the circumferential direction; the driving component is connected with a crushing component, and the crushing component is connected with the self-expanding component; through the above-mentioned method, the driving component of the hole expanding component of the invention drives the male hole expanding component and the water supply component to rotate, the male hole expanding component performs hole expanding treatment, and the water supply component performs center hole water injection treatment, and the center water injection diffuses outward to avoid residual moisture at the edge where the support cylinder moves, thereby avoiding collapse.

Description

Technical Field

[0001] The invention relates to the technical field of pipe jacking construction, and in particular to a municipal road pipe jacking hole expanding device. Background Art

[0002] Municipal road pipe jacking construction generally involves the laying, replacement and repair of various pipelines under conditions where excavation is not allowed or cannot be carried out. Municipal road pipe jacking construction is a process in which a pipe jacking machine pushes the pipe jacking machine head (hole expander) to move, and the moving hole expander performs hole expansion processing.

[0003] For example, Chinese patent announcement number: CN212509781U provides a "mud and water balanced pipe jacking machine head structure". The pipe jacking machine head is balanced by dispersed water injection, but the dispersed water injection balancing effect is not ideal, and collapse still occurs. In addition, the pipe jacking machine head has a hole expansion structure, and the hole expansion efficiency is low in hard geological areas. In addition, the mud crushing structure is not designed, the mud discharge is easily blocked, and the discharge power requirement is high.

[0004] Based on this, the present invention designs a municipal road jacking pipe hole expanding device to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a municipal road pipe jacking hole expanding device.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A municipal road jacking pipe hole expansion device, comprising a support cylinder, wherein the support cylinder is connected with a hole expansion assembly;

[0008] The hole expansion assembly includes a driving assembly, a male hole expansion assembly and a water supply assembly. The driving assembly and the male hole expansion assembly are both connected to the support tube. The driving assembly is movably connected to the male hole expansion assembly. The center of the male hole expansion assembly is connected to a water supply assembly.

[0009] A slurry outlet hole is formed at the lower end of the side wall of the support tube away from the hole expansion assembly, and a slurry outlet pipe is fixedly connected to the outer end of the slurry outlet hole;

[0010] The reaming end of the male reaming component is also connected to a self-reaming component along the circumferential direction;

[0011] The driving assembly is connected with a crushing assembly, and the crushing assembly is connected with a self-expanding assembly.

[0012] Furthermore, the driving assembly includes a driving motor, a support seat, a second gear plate, an inner gear ring and a second gear plate connecting shaft, the driving end of the driving motor is connected to the second gear plate connecting shaft, the second gear plate connecting shaft is fixedly connected to the second gear plate, the second gear plate is meshingly connected to the inner gear ring, and the end of the inner gear ring away from the support tube is fixedly connected to the support seat.

[0013] Furthermore, the drive motor is installed on the outer wall of the support tube, and a plurality of drive motors are provided, the central axes of the drive ends of the drive motors are on the same circular line, and the center of the circular line coincides with the center of the support tube.

[0014] Furthermore, the male expansion hole assembly includes a connecting bearing, a revolving tool, a revolving rotating disk and a slurry discharge hole. The support seat is installed at equal intervals along the circumferential direction on the side wall of the revolving rotating disk close to the support tube. The revolving rotating disk is fixedly connected to the outer end of the side wall of the support tube close to the support tube. The connecting bearing is fixedly connected to the end of the support tube. The revolving rotating disk is fixedly connected to the revolving tool at equal intervals away from the side wall of the support tube. The revolving rotating disk is provided with a plurality of identical slurry discharge holes.

[0015] Furthermore, the water supply assembly includes a conical rod, a conical cylinder, a water outlet, a water inlet pipe, a conical hole and a conical tube. The revolving rotating disk is provided with a water outlet at the center of the side wall away from the supporting cylinder, and a conical hole is provided at the inner end of the water outlet. A conical tube is inserted in the conical hole, and the end of the conical tube close to the supporting cylinder is fixedly connected with the water inlet pipe. The revolving rotating disk is fixedly connected with conical rods at equal intervals along the circumferential direction away from the center of the side wall of the supporting cylinder, and the conical rod is fixedly connected with the conical cylinder away from the end of the supporting cylinder, and the central axis of the conical cylinder is aligned with the central axis of the water outlet.

[0016] Furthermore, the support tube is provided with a transverse hole, and the water inlet pipe is installed in the transverse hole.

[0017] Furthermore, the thin end of the conical tube is arranged far away from the supporting tube, and the diameter of the thick end of the conical tube close to the supporting tube is larger than the diameter of the water outlet.

[0018] Furthermore, the self-expanding hole assembly includes a self-rotating rotating disk, a self-rotating tool, a first gear disk, a self-rotating rotating disk connecting shaft and a third gear disk, the revolving rotating disk is rotatably connected to the self-rotating rotating disk connecting shaft at equal intervals along the circumferential direction, the end of the self-rotating rotating disk connecting shaft away from the support tube is fixedly connected to the self-rotating rotating disk, the end of the self-rotating rotating disk away from the support tube is fixedly connected to the self-rotating tool in a circular array, the end of the self-rotating rotating disk connecting shaft close to the support tube is fixedly connected to the third gear disk, and the third gear disk is meshingly connected to the first gear disk.

[0019] Beneficial Effects

[0020] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0021] 1. The driving assembly of the hole expansion assembly of the present invention drives the male hole expansion assembly and the water supply assembly to rotate. The male hole expansion assembly performs hole expansion processing, and the water supply assembly performs center hole water injection processing. The center water injection diffuses outward to avoid residual water at the edge of the moving support tube, thereby avoiding collapse.

[0022] 2. The hole expansion assembly of the present invention drives the crushing assembly to rotate, and the crushing assembly crushes the mud in the support tube, thereby reducing the diameter of particles in the mud, avoiding blockage when the mud is discharged, and reducing the power requirement for mud discharge.

[0023] 3. The male hole-expanding assembly of the present invention drives the self-expanding assembly to revolve, and at the same time, the crushing assembly drives the self-expanding assembly to rotate, so that the self-expanding assembly cuts while revolving and rotating, and the self-expanding assembly has high hole-expanding efficiency in hard geological areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The main structure of the municipal road top pipe expansion device of the present invention is a three-dimensional Figure 1 ;

[0026] Figure 2 It is a front view of the structure of a municipal road jacking pipe expansion device of the present invention;

[0027] Figure 3 It is a right side view of the structure of the present invention;

[0028] Figure 4 The structure of the present invention is Figure 2 ;

[0029] Figure 5 For along Figure 2 AA direction cross-sectional view;

[0030] Figure 6 For along Figure 3 BB direction cross-sectional view;

[0031] Figure 7 For along Figure 3 CC direction cross-sectional view.

[0032] The numbers in the figure represent:

[0033] 1. Support cylinder; 2. Connecting bearing; 3. Revolution tool; 4. Revolution rotating disk; 5. Tapered rod; 6. Conical cylinder; 7. Self-rotating rotating disk; 8. Self-rotating tool; 9. Slurry discharge hole; 10. Water outlet hole; 11. Driving motor; 12. Water inlet pipe; 13. Slurry outlet pipe; 14. Support seat; 15. First toothed disc; 16. Hollow cylinder; 17. Second toothed disc; 18. Self-rotating rotating disk connecting shaft; 19. Third toothed disc; 20. Inner gear ring; 21. Fourth toothed disc; 22. Fifth toothed disc; 23. Fifth toothed disc connecting shaft; 24. Sixth toothed disc; 25. Crushing gear rod; 26. Tapered hole; 27. Tapered tube; 28. Slurry discharge hole; 29. ​​Horizontal hole; 30. Second toothed disc connecting shaft. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention will be further described below in conjunction with the embodiments.

[0036] Example 1

[0037] like Figure 1 , 2 , 3, 4, 5, 6 and 7, a municipal road top pipe expansion device includes a support tube 1, and the support tube 1 is connected to the expansion assembly;

[0038] The hole expansion assembly includes a driving assembly, a male hole expansion assembly and a water supply assembly. The driving assembly and the male hole expansion assembly are both connected to the support tube 1. The driving assembly is movably connected to the male hole expansion assembly. The center of the male hole expansion assembly is connected to a water supply assembly.

[0039] A slurry outlet hole 28 is formed at the lower end of the side wall of the support tube 1 away from the hole expansion assembly, and a slurry outlet pipe 13 is fixedly connected to the outer end of the slurry outlet hole 28;

[0040] The driving assembly includes a driving motor 11, a support seat 14, a second gear disc 17, an inner gear ring 20 and a second gear disc connecting shaft 30. The driving end of the driving motor 11 is connected to the second gear disc connecting shaft 30. The second gear disc connecting shaft 30 is fixedly connected to the second gear disc 17. The second gear disc 17 is meshedly connected to the inner gear ring 20. The end of the inner gear ring 20 away from the support tube 1 is fixedly connected to the supporting seat 14.

[0041] The driving motor 11 is mounted on the outer wall of the support tube 1, and there are multiple groups of driving motors 11. The central axes of the driving ends of the driving motors 11 are on the same circular line, and the center of the circular line coincides with the center of the support tube 1.

[0042] The male expansion assembly includes a connecting bearing 2, a revolving tool 3, a revolving rotating disk 4 and a slurry discharge hole 9. The support seat 14 is installed at equal intervals along the circumferential direction on the side wall of the revolving rotating disk 4 close to the support tube 1. The outer end of the revolving rotating disk 4 close to the side wall of the support tube 1 is fixedly connected with the connecting bearing 2. The connecting bearing 2 is fixedly connected to the end of the support tube 1. The revolving rotating disk 4 is fixedly connected with the revolving tool 3 at equal intervals away from the side wall of the support tube 1. The revolving rotating disk 4 is provided with a plurality of identical slurry discharge holes 9.

[0043] The water supply assembly includes a tapered rod 5, a tapered cylinder 6, a water outlet 10, a water inlet pipe 12, a tapered hole 26 and a tapered pipe 27. The water outlet 10 is provided at the center of the side wall of the revolving rotating disk 4 away from the support cylinder 1, and a tapered hole 26 is provided at the inner end of the water outlet 10. A tapered pipe 27 is inserted in the tapered hole 26, and the end of the tapered pipe 27 close to the support cylinder 1 is fixedly connected to the water inlet pipe 12. The center of the side wall of the revolving rotating disk 4 away from the support cylinder 1 is fixedly connected to the tapered rod 5 at equal intervals along the circumferential direction, and the end of the tapered rod 5 away from the support cylinder 1 is fixedly connected to the tapered cylinder 6, and the central axis of the tapered cylinder 6 is aligned with the central axis of the water outlet 10.

[0044] The support tube 1 is provided with a transverse hole 29, and the water inlet pipe 12 is installed in the transverse hole 29;

[0045] The thin end of the conical cylinder 6 is arranged away from the supporting cylinder 1, and the diameter of the thick end of the conical cylinder 6 close to the supporting cylinder 1 is larger than the diameter of the water outlet 10;

[0046] The reaming end of the male reaming component is also connected to a self-reaming component along the circumferential direction;

[0047] The driving assembly is connected with the crushing assembly, and the crushing assembly is connected with the self-expanding assembly.

[0048] The driving assembly of the hole expansion assembly drives the male hole expansion assembly and the water supply assembly to rotate. The male hole expansion assembly performs hole expansion processing, and the water supply assembly performs center hole water injection processing. The center water injection diffuses outward to avoid residual water at the moving edge of the support tube 1, thereby avoiding collapse.

[0049] Example 2

[0050] Embodiment 2 is a further improvement on embodiment 1.

[0051] like Figure 1 , 2As shown in , 5, 6 and 7, the self-reaming assembly includes a self-rotating rotating disk 7, a self-rotating tool 8, a first toothed disk 15, a self-rotating rotating disk connecting shaft 18 and a third toothed disk 19. The revolving rotating disk 4 is rotatably connected with the self-rotating rotating disk connecting shaft 18 at equal intervals along the circumferential direction. The end of the self-rotating rotating disk connecting shaft 18 away from the support cylinder 1 is fixedly connected with the self-rotating rotating disk 7. The end of the self-rotating rotating disk 7 away from the support cylinder 1 is fixedly connected with the self-rotating tool 8 in a circular array. The end of the self-rotating rotating disk 7 close to the support cylinder 1 is fixedly connected with the third toothed disk 19. The third toothed disk 19 is meshingly connected with the first toothed disk 15.

[0052] The male hole reaming component drives the self-reaming component to revolve, and at the same time, the crushing component drives the self-reaming component to rotate, so that the self-reaming component cuts while revolving and rotating. The self-reaming component has high hole reaming efficiency in hard geological areas.

[0053] Example 3

[0054] Embodiment 3 is a further improvement on Embodiment 2.

[0055] like Figure 5 , 6 As shown in FIG. 7 , the crushing assembly includes a hollow cylinder 16, a fourth toothed disc 21, a fifth toothed disc 22, a fifth toothed disc connecting shaft 23, a sixth toothed disc 24 and a crushing toothed rod 25, wherein the second toothed disc connecting shaft 30 of one of the hollow cylinders is fixedly connected to the fourth toothed disc 21, the fourth toothed disc 21 is meshingly connected to the fifth toothed disc 22, the fifth toothed disc connecting shaft 23 is fixedly connected to the mounting of the fifth toothed disc 22, the fifth toothed disc connecting shaft 23 is rotatably connected to the inner wall of the support cylinder 1 through a bearing, the fifth toothed disc 22 is rotatably connected to the sixth toothed disc 24, the hollow cylinder 16 is fixedly connected to the mounting hole of the sixth toothed disc 24, and the crushing toothed rods 25 are fixedly connected to the outer wall of the hollow cylinder 16 at equal intervals;

[0056] The number of teeth of the fourth gear disc 21 , the number of teeth of the fifth gear disc connecting shaft 23 , and the number of teeth of the sixth gear disc 24 gradually decrease, thereby achieving a high rotation speed of the hollow cylinder 16 .

[0057] The side wall of the support cylinder 1 is rotatably connected to the hollow cylinder 16 via a bearing, and the end of the hollow cylinder 16 close to the revolving rotating disk 4 is installed in the installation hole of the first gear disk 15 .

[0058] The number of teeth of the hollow cylinder 16 is greater than the number of teeth of the third gear plate 19 .

[0059] The expansion assembly drives the crushing assembly to rotate, and the crushing assembly crushes the mud in the support tube 1, thereby reducing the diameter of particles in the mud, avoiding blockage when the mud is discharged, and reducing the power requirement for mud discharge.

[0060] When in use, the support cylinder 1 is placed in a pre-dug hole, and the pipe jacking machine drives the support cylinder 1 to move through the jacking pipe, and the driving motor 11 of the driving assembly of the hole reaming assembly drives the second toothed disc connecting shaft 30 to rotate, and the second toothed disc connecting shaft 30 drives the second toothed disc 17 to rotate, and the second toothed disc 17 drives the inner gear ring 20 to rotate, and the inner gear ring 20 drives the support seat 14 to rotate, and the support seat 14 drives the revolving rotating disk 4 of the hole reaming assembly and the tapered rod 5 of the water supply assembly to rotate along the connecting bearing 2, and the tapered rod 5 drives the conical cylinder 6 to rotate. The revolution rotating disk 4 of the male hole expansion component drives the revolution tool 3 to rotate for cutting and hole expansion. The water of the water inlet pipe 12 of the water supply component enters the hollow cylinder 16, and the hollow cylinder 16 is pressurized and then sprayed out of the water outlet 10. The water outlet 10 performs a center hole water injection treatment, and the center water injection diffuses outward to avoid residual water at the edge of the support tube 1 moving, so as to avoid collapse. The second toothed disc connecting shaft 30 of the hole expansion component drives the fourth toothed disc 21 of the crushing component to rotate, and the fourth toothed disc 21 drives the fifth The toothed disc 22 rotates along the fifth toothed disc connecting shaft 23, the fifth toothed disc 22 drives the crushing tooth rod 25 to rotate, the crushing tooth rod 25 drives the hollow cylinder 16 to rotate, the hollow cylinder 16 drives the crushing tooth rod 25 to rotate, the crushing tooth rod 25 rotating at high speed performs mud crushing processing, the crushing component crushes the mud in the support cylinder 1, reduces the diameter of the particles in the mud, avoids blockage when the mud is discharged, and reduces the power requirement for mud discharge; at the same time, the orbital rotating disk 4 of the public expansion assembly drives the self-rotating rotating disk 4 of the self-expansion assembly The moving disk connecting shaft 18 rotates, the self-rotating rotating disk connecting shaft 18 drives the self-rotating rotating disk 7 to rotate, and the self-rotating rotating disk 7 drives the self-rotating tool 8 to revolve along the revolving rotating disk 4. At the same time, the hollow cylinder 16 of the crushing component drives the first toothed disk 15 of the self-expanding component to rotate, the first toothed disk 15 drives the third toothed disk 19 to rotate, and the third toothed disk 19 drives the self-rotating rotating disk connecting shaft 18 to rotate, so that the self-rotating tool 8 of the self-expanding component can cut while revolving and rotating, and the self-expanding component has high efficiency in expanding holes in harder geology.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A municipal road jacking pipe expansion device, comprising a support tube (1), characterized in that: The support tube (1) is connected to a hole expansion assembly; The hole expansion assembly comprises a driving assembly, a male hole expansion assembly and a water supply assembly, the driving assembly and the male hole expansion assembly are both connected to the support tube (1), the driving assembly is movably connected to the male hole expansion assembly, and the center of the male hole expansion assembly is connected to the water supply assembly; A slurry outlet hole (28) is formed at the lower end of the side wall of the support tube (1) away from the hole expansion assembly, and a slurry outlet pipe (13) is fixedly connected to the outer end of the slurry outlet hole (28); The reaming end of the male reaming assembly is also connected to a self-reaming assembly along the circumferential direction; The driving assembly is connected to a crushing assembly, and the crushing assembly is connected to a self-expanding assembly; The driving assembly comprises a driving motor (11), a support seat (14), a second toothed disc (17), an inner gear ring (20) and a second toothed disc connecting shaft (30); the driving end of the driving motor (11) is connected to the second toothed disc connecting shaft (30); the second toothed disc connecting shaft (30) is fixedly connected to the second toothed disc (17); the second toothed disc (17) is meshingly connected to the inner gear ring (20); and the end of the inner gear ring (20) away from the support tube (1) is fixedly connected to the supporting seat (14); The drive motor (11) is mounted on the outer wall of the support tube (1), and a plurality of drive motors (11) are provided, the central axes of the drive ends of the drive motors (11) are on the same circular line, and the center of the circular line coincides with the center of the support tube (1); The male expansion hole assembly comprises a connecting bearing (2), a revolving tool (3), a revolving rotating disk (4) and a pulp discharge hole (9); the supporting seat (14) is installed at equal intervals along the circumferential direction on the side wall of the revolving rotating disk (4) close to the supporting tube (1); the outer end of the side wall of the revolving rotating disk (4) close to the supporting tube (1) is fixedly connected to the connecting bearing (2); the connecting bearing (2) is fixedly connected to the end of the supporting tube (1); the side wall of the revolving rotating disk (4) away from the supporting tube (1) is fixedly connected to the revolving tool (3) at equal intervals; the revolving rotating disk (4) is provided with a plurality of identical pulp discharge holes (9); The self-expanding assembly comprises a self-rotating rotating disk (7), a self-rotating tool (8), a first toothed disk (15), a self-rotating rotating disk connecting shaft (18) and a third toothed disk (19); the revolving rotating disk (4) is connected to the self-rotating rotating disk connecting shaft (18) at equal intervals along the circumferential direction; the end of the self-rotating rotating disk connecting shaft (18) away from the support tube (1) is fixedly connected to the self-rotating rotating disk (7); the end of the self-rotating rotating disk (7) away from the support tube (1) is fixedly connected to the self-rotating tool (8) in a circular array; the end of the self-rotating rotating disk connecting shaft (18) close to the support tube (1) is fixedly connected to the third toothed disk (19); the third toothed disk (19) is meshingly connected to the first toothed disk (15); The crushing assembly comprises a hollow cylinder (16), a fourth toothed disc (21), a fifth toothed disc (22), a fifth toothed disc connecting shaft (23), a sixth toothed disc (24) and a crushing toothed rod (25), wherein the second toothed disc connecting shaft (30) of one of the plurality of toothed discs is fixedly connected to the fourth toothed disc (21), the fourth toothed disc (21) is meshingly connected to the fifth toothed disc (22), the fifth toothed disc connecting shaft (23) is fixedly connected to the mounting hole of the fifth toothed disc (22), the fifth toothed disc connecting shaft (23) is rotatably connected to the inner wall of the support cylinder (1) via a bearing, the fifth toothed disc (22) is rotatably connected to the sixth toothed disc (24), the hollow cylinder (16) is fixedly connected to the mounting hole of the sixth toothed disc (24), and the crushing toothed rods (25) are fixedly connected to the outer wall of the hollow cylinder (16) at equal intervals; The number of teeth of the fourth toothed disc (21), the number of teeth of the fifth toothed disc connecting shaft (23), and the number of teeth of the sixth toothed disc (24) gradually decrease, thereby achieving a high rotation speed of the hollow cylinder (16).

2. A municipal road jacking pipe expansion device according to claim 1, characterized in that: The water supply assembly comprises a conical rod (5), a conical cylinder (6), a water outlet hole (10), a water inlet pipe (12), a conical hole (26) and a conical pipe (27); the water outlet hole (10) is provided at the center of the side wall of the revolving rotating disk (4) away from the supporting cylinder (1); the inner end of the water outlet hole (10) is provided with a conical hole (26); a conical pipe (27) is inserted into the conical hole (26); the end of the conical pipe (27) close to the supporting cylinder (1) is fixedly connected to the water inlet pipe (12); the conical rod (5) is fixedly connected to the center of the side wall of the revolving rotating disk (4) away from the supporting cylinder (1) at equal intervals along the circumferential direction; the end of the conical rod (5) away from the supporting cylinder (1) is fixedly connected to the conical cylinder (6); and the center axis of the conical cylinder (6) is aligned with the center axis of the water outlet hole (10).

3. A municipal road jacking pipe expansion device according to claim 2, characterized in that: The support tube (1) is provided with a transverse hole (29), and the water inlet pipe (12) is installed in the transverse hole (29).

4. A municipal road jacking pipe expansion device according to claim 3, characterized in that: The thin end of the conical cylinder (6) is arranged away from the supporting cylinder (1), and the diameter of the thick end of the conical cylinder (6) close to the supporting cylinder (1) is larger than the diameter of the water outlet hole (10).

Images