Oil cylinder with deviation rectifying function for tube push bench

By designing a hydraulic cylinder for a pipe jacking machine with a correction function, including a primary jacking iron, a secondary jacking iron, a primary hydraulic cylinder, a secondary hydraulic cylinder, and a correction mechanism, the problem of correction of the pipe jacking machine in complex strata was solved, and the stable operation and safety of the pipe jacking machine were improved.

CN223595206UActive Publication Date: 2025-11-25SINOHYDRO BUREAU 6 CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423151087.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-25
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing pipe jacking machines have difficulty achieving effective deviation correction in complex strata, causing the jacking axis and elevation position to deviate from the design standards. This is especially true in sandy soil layers, sandy gravel layers, semi-soil and semi-rock layers, and strata with large variations in rock strength, where sudden situations such as the machine head tilting up or sinking are likely to occur.

Method used

A hydraulic cylinder for a pipe jacking machine with a correction function has been designed, including a primary jacking iron, a secondary jacking iron, a primary hydraulic cylinder, a secondary hydraulic cylinder, and a correction mechanism. Through the cooperation of these components, the machine provides guiding and correction capabilities, reduces the risk of hydraulic cylinder bending or breaking under stress, and ensures the stable operation of the pipe jacking machine.

Benefits of technology

It achieves precise correction of the pipe jacking trajectory in complex strata, ensuring the stability and safety of the pipe jacking machine, reducing the risk of damage to the hydraulic cylinder, and meeting design and quality standards.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223595206U_ABST
    Figure CN223595206U_ABST
Patent Text Reader

Abstract

The oil cylinder with the deviation rectifying function for the pipe jacking machine comprises a shield shell, a pipe jacking machine head, backrest concrete and jacking iron, the pipe jacking machine head is arranged at the front end of the shield shell and connected with an upper front shield of the shield shell, the backrest concrete and the jacking iron are arranged at the tail end of the shield shell, and the backrest concrete is connected with the jacking iron. A first-level jacking iron and a second-level jacking iron which are coaxial with the shield shell are arranged among the shield shell, the backrest concrete and the jacking iron, and the second-level jacking iron is arranged at the tail end of an upper pipe joint of the shield shell. And guide deviation correction can be provided for the first-stage oil cylinder and the second-stage oil cylinder in the pipe jacking process, and then deviation correction is provided for the pipe jacking track, so that the pipe jacking machine can meet the pipe jacking requirements of complex stratums such as half-soil and half-rock or strong and weak weathered rocks with large strength change and soil, sand, sand, pebbles and the like which are prone to deviation.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe jacking machine technical field especially relates to a pipe jacking machine oil cylinder with rectification function. BACKGROUND

[0002] In the process of water conservancy or municipal engineering pipe jacking construction, according to the actual situation needs to adjust the tunneling route to meet the application of pipeline, therefore need pipe jacking machine to have certain rectification ability, especially in complex stratum pipe jacking construction, in the sand layer, sand pebble layer, half soil half rock and rock strength from weathered to micro weathered change larger rock stratum, when jacking, may appear sudden situation (such as stratum soil is not enough, machine head is tilted, suddenly encounters goaf, machine head subsides etc.), at this moment need to use pipe jacking machine to rectify in time.

[0003] The rectification ability can guarantee that pipe jacking machine can reach the design and quality standard requirements in jacking axis and elevation position, in view of the insufficient of prior art, the present application provides a novel pipe jacking machine oil cylinder with rectification function to solve the above problems. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a pipe jacking machine oil cylinder with rectification function, it includes: shield shell, pipe jacking machine head and backrest concrete and top iron, the pipe jacking machine head is arranged in the front end of the shield shell and is connected with the upper front shield of the shield shell, the backrest concrete and top iron are arranged in the tail end of the shield shell, the shield shell and the backrest concrete and top iron between the first top iron and the second top iron of being arranged with the shield shell coaxial, the second top iron is arranged in the tail end of the shield shell pipe joint.

[0005] Still include first stage oil cylinder, second stage oil cylinder and rectification mechanism, the number of first stage oil cylinder is at least four groups, and it is arranged between backrest concrete and top iron and first stage top iron in annular array distribution, and is connected with backrest concrete and top iron and first stage top iron, the number of second stage oil cylinder is at least four groups, and it is arranged between first stage top iron and second stage top iron in annular array distribution, and is connected with first stage top iron and second stage top iron.

[0006] Preferably, the bottom of the first stage top iron and the second stage top iron is provided with a base, a group of side support frames is arranged on the top of the base near the two side edges, the two groups of side support frames are parallel to each other and perpendicular to the base, the side edges of the first stage top iron and the second stage top iron are slidingly connected with the side support frames, the center line of the moving direction of the first stage top iron and the second stage top iron on the side support frames coincides with the axial direction of the shield shell, a bottom support frame parallel to the axial direction of the shield shell is arranged at the center position of the top of the base, and the first stage top iron and the second stage top iron are slidingly arranged on the bottom support frame.

[0007] Preferably, the deviation rectification mechanism comprises a first guide ring, a second guide ring and a connecting piece, the first guide ring is provided with guide holes consistent with the number, position and size of the free ends of the first oil cylinder, the first guide ring is movably connected with the first oil cylinder through the guide holes, the second guide ring is provided between the first top iron and the second top iron, the second guide ring is provided with guide holes consistent with the number, position and size of the free ends of the second oil cylinder, the second guide ring is movably connected with the second oil cylinder through the guide holes, the first guide ring and the second guide ring are connected with the connecting pieces arranged in an annular array, and the connecting pieces penetrate to the inner side of the first top iron.

[0008] Preferably, the deviation rectification mechanism further comprises a longitudinal deviation rectification oil cylinder and a transverse deviation rectification oil cylinder, the longitudinal deviation rectification oil cylinder with a free end vertically upward is arranged directly below the first guide ring, the free end of the longitudinal deviation rectification oil cylinder is connected with the first guide ring, the side of the backrest concrete and the top iron is provided with side wall concrete, the side wall concrete and the backrest concrete and the top iron are both vertically arranged on the base, and the transverse deviation rectification oil cylinder is arranged on the side close to the first top iron of the deviation rectification mechanism, and the free end of the transverse deviation rectification oil cylinder is connected with the second guide ring.

[0009] The oil cylinder with deviation rectification function for pipe jacking machine has the advantages that: the first top iron, the second top iron, the first oil cylinder, the second oil cylinder and the deviation rectification mechanism are cooperatively designed, so that the first oil cylinder and the second oil cylinder can be guided and rectified during pipe jacking, and the pipe jacking track can be rectified, the pipe jacking machine can meet the pipe jacking requirements of complex strata with large strength changes such as half-soil and half-rock, strong and weak weathered rock and soil sandstone, and the risk of bending or breaking of the first oil cylinder and the second oil cylinder due to stress can be reduced, the stable operation and safety of the pipe jacking machine are ensured, and the first top iron, the second top iron, the first oil cylinder and the second oil cylinder are further supported and guided by the base, the side support frame and the bottom support frame, and the stability is improved.

[0010] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model provides a kind of oil cylinder with deviation rectification function for pipe jacking machine elevational view.

[0012] Figure 2 The utility model provides a kind of oil cylinder with deviation rectification function for pipe jacking machine front view.

[0013] Figure 3The utility model provides a kind of oil cylinder structure diagram with deviation rectification function for pipe jacking machine.

[0014] Figure 4 The utility model provides a kind of plan view of oil cylinder with deviation rectification function for pipe jacking machine.

[0015] Wherein, 1-shell, 2-pipe jacking machine head, 3-backrest concrete and top iron, 4-first top iron, 5-second top iron, 6-first oil cylinder, 7-second oil cylinder, 8-side wall concrete, 9-deviation rectification mechanism, 10-base, 11-side support bracket, 12-bottom support bracket, 91-first guide ring piece, 92-second guide ring piece, 93-connecting piece, 94-longitudinal deviation rectification oil cylinder, 95-lateral deviation rectification oil cylinder. DETAILED DESCRIPTION

[0016] Reference Figure 1 The utility model provides a kind of oil cylinder with deviation rectification function for pipe jacking machine plan view.

[0017] Participation Figure 2 The utility model provides a kind of oil cylinder with deviation rectification function for pipe jacking machine front view.

[0018] Participation Figure 3 The utility model provides a kind of oil cylinder structure diagram with deviation rectification function for pipe jacking machine.

[0019] Participation Figure 4 The utility model provides a kind of plan view of oil cylinder with deviation rectification function for pipe jacking machine.

[0020] An oil cylinder with deviation rectification function for pipe jacking machine, comprising: a shield 1, a pipe jacking machine head 2 and a backrest concrete and top iron 3, the pipe jacking machine head 2 is arranged at the front end of the shield 1 and is connected with the upper front shield of the shield 1, the backrest concrete and top iron 3 are arranged at the tail end of the shield 1, a first top iron 4 and a second top iron 5 coaxial with the shield 1 are arranged between the shield 1 and the backrest concrete and top iron 3, and the second top iron 5 is arranged at the tail end of the pipe joint on the shield 1.

[0021] Further comprising a first oil cylinder 6, a second oil cylinder 7 and a deviation rectification mechanism 9; the number of the first oil cylinder 6 is at least four groups, and is arranged in annular array distribution between the backrest concrete and top iron 3 and the first top iron 4, and is connected with the backrest concrete and top iron 3 and the first top iron 4; the number of the second oil cylinder 7 is at least four groups, and is arranged in annular array distribution between the first top iron 4 and the second top iron 5, and is connected with the first top iron 4 and the second top iron 5. Wherein, the first oil cylinder 6 is used to control the axial movement of the first top iron 4 along the shield 1, and the second oil cylinder 7 is used to drive the axial movement of the second top iron 5 along the shield 1.

[0022] Preferably, the bottom of the primary top iron 4 and the secondary top iron 5 is provided with a base 10, the top of the base 10 is provided with a group of side support frames 11 near the two side edges, the two groups of side support frames 11 are parallel to each other and perpendicular to the base 10, the side edges of the primary top iron 4 and the secondary top iron 5 are slidingly connected with the side support frames 11, the center line of the movement direction of the primary top iron 4 and the secondary top iron 5 on the side support frames 11 coincides with the axial direction of the shield 1, and the center position of the top of the base 10 is provided with a bottom support frame 12 parallel to the axial direction of the shield 1, and the primary top iron 4 and the secondary top iron 5 are slidingly arranged on the bottom support frame 12.

[0023] Preferably, the deviation correction mechanism 9 comprises a primary guide ring 91, a secondary guide ring 92 and a connecting piece 93, the primary guide ring 91 is provided with guide holes consistent with the number, position and size of the free ends of the primary oil cylinder 6, the primary guide ring 91 is movably connected with the primary oil cylinder 6 through the guide holes, the secondary guide ring 92 is arranged between the primary top iron 4 and the secondary top iron 5, the secondary guide ring 92 is provided with guide holes consistent with the number, position and size of the free ends of the secondary oil cylinder 7, the secondary guide ring 92 is movably connected with the secondary oil cylinder 7 through the guide holes, and the connecting piece 93 arranged in an annular array is connected between the primary guide ring 91 and the secondary guide ring 92, and the connecting piece 93 penetrates to the inner side of the primary top iron 4. Specifically, the primary guide ring 91 is movably connected with the plurality of primary oil cylinders 6 through the guide holes, and the secondary guide ring 92 is movably connected with the plurality of secondary oil cylinders 7 through the guide holes. Through the cooperation of the primary top iron, the secondary top iron, the primary oil cylinder, the secondary oil cylinder and the deviation correction mechanism, the primary oil cylinder and the secondary oil cylinder can be guided and corrected during the pipe jacking process, and the pipe jacking track can be corrected.

[0024] Preferably, the deviation rectifying mechanism 9 further comprises a longitudinal deviation rectifying oil cylinder 94 and a transverse deviation rectifying oil cylinder 95, the longitudinal deviation rectifying oil cylinder 94 with a free end vertically upward is arranged below the primary guide ring 91, the free end of the longitudinal deviation rectifying oil cylinder 94 is connected with the primary guide ring 91, the side of the back concrete and top iron 3 is provided with a side wall concrete 8, the side wall concrete 8 and the back concrete and top iron 3 are both vertically arranged on the base 10, the deviation rectifying mechanism 9 is provided with the transverse deviation rectifying oil cylinder 95 close to one side of the primary top iron 4, the free end of the transverse deviation rectifying oil cylinder 95 is connected with the secondary guide ring 92, the primary oil cylinder 6 and the secondary oil cylinder 7 can be guided and rectified in the pipe jacking process, and the pipe jacking track is rectified, so that the pipe jacking machine can meet the pipe jacking requirements of the complex stratum with large strength change such as half soil and half rock or strong and weak weathered rock, and the risk of bending or breaking of the primary oil cylinder 6 and the secondary oil cylinder 7 due to stress can be reduced, and the stable operation and safety of the pipe jacking machine are ensured.

[0025] Working principle: when the free end of the primary oil cylinder 6 and the secondary oil cylinder 7 is controlled to elongate to drive the shield 1 and the pipe jacking machine head 2 to move to the position to be jacked, the shield 1 and the pipe jacking machine head 2 deviate, the free end of the longitudinal deviation rectifying oil cylinder 94 and the transverse deviation rectifying oil cylinder 95 is controlled to stretch and retract to drive the primary guide ring 91 and the secondary guide ring 92 to move, so as to guide and correct the free end of the primary oil cylinder 6 and the secondary oil cylinder 7.

[0026] The utility model discloses the common knowledge or usual technical means in the prior art of the utility model not disclosed. The specification and the embodiment are only regarded as exemplary, and the true scope and spirit of the utility model are indicated by the following claims.

[0027] It should be understood that the utility model is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the utility model is only limited by the appended claims.

Claims

1. An oil cylinder for a pipe jacking machine having a deviation correction function, characterized by, The shield (1), the pipe jacking machine head (2) and the back concrete and top iron (3), the pipe jacking machine head (2) is arranged at the front end of the shield (1) and is connected with the upper front shield of the shield (1), the back concrete and top iron (3) is arranged at the tail end of the shield (1), a first top iron (4) and a second top iron (5) coaxial with the shield (1) are arranged between the shield (1) and the back concrete and top iron (3), and the second top iron (5) is arranged at the tail end of the pipe joint on the shield (1). It also includes a first oil cylinder (6), a second oil cylinder (7) and a deviation correction mechanism (9); the number of the first oil cylinder (6) is at least four groups, and it is arranged in a ring array between the back concrete and top iron (3) and the first top iron (4) and is connected with the back concrete and top iron (3) and the first top iron (4); the number of the second oil cylinder (7) is at least four groups, and it is arranged in a ring array between the first top iron (4) and the second top iron (5) and is connected with the first top iron (4) and the second top iron (5). The bottom of the first top iron (4) and the second top iron (5) is provided with a base (10), a group of side support frames (11) is arranged near the position of the two side edges of the top of the base (10), the two groups of side support frames (11) are parallel to each other and perpendicular to the base (10), the side edges of the first top iron (4) and the second top iron (5) are slidably connected with the side support frames (11), the center line of the moving direction of the first top iron (4) and the second top iron (5) on the side support frames (11) coincides with the axial direction of the shield (1), and a bottom support frame (12) parallel to the axial direction of the shield (1) is arranged at the center position of the top of the base (10), and the first top iron (4) and the second top iron (5) are slidably arranged on the bottom support frame (12).

2. The oil cylinder with a deviation rectifying function for a pipe jacking machine according to claim 1, wherein The deviation correction mechanism (9) includes a first guide ring (91), a second guide ring (92) and a connecting piece (93), the first guide ring (91) is provided with guide holes consistent with the number, position and size of the free ends of the first oil cylinder (6), the first guide ring (91) is movably connected with the first oil cylinder (6) through the guide holes, the second guide ring (92) is arranged between the first top iron (4) and the second top iron (5), the second guide ring (92) is provided with guide holes consistent with the number, position and size of the free ends of the second oil cylinder (7), the second guide ring (92) is movably connected with the second oil cylinder (7) through the guide holes, and the first guide ring (91) and the second guide ring (92) are connected with the connecting pieces (93) arranged in a ring array, and the connecting pieces (93) penetrate to the inside of the first top iron (4).

3. The oil cylinder with a deviation rectifying function for a pipe jacking machine according to claim 2, wherein ​ 4. The oil cylinder with a deviation rectifying function for a pipe jacking machine according to claim 3, wherein The deviation rectifying mechanism (9) further comprises a longitudinal deviation rectifying oil cylinder (94) and a transverse deviation rectifying oil cylinder (95), a longitudinal deviation rectifying oil cylinder (94) with a free end vertically upward is arranged right below the primary guide ring (91), the free end of the longitudinal deviation rectifying oil cylinder (94) is connected with the primary guide ring (91), the side edge of the back concrete and top iron (3) is provided with a side wall concrete (8), the side wall concrete (8) and the back concrete and top iron (3) are both vertically arranged on the base (10), the deviation rectifying mechanism (9) is provided with the transverse deviation rectifying oil cylinder (95) close to one side of the primary top iron (4), the free end of the transverse deviation rectifying oil cylinder (95) is connected with the secondary guide ring (92).