Advancing limiting mechanism for tube push bench

Abstract

The utility model provides an advancing limiting mechanism for a tube push bench, and relates to the technical field of limiting mechanisms, the advancing limiting mechanism comprises a limiting sliding plate, one end of the limiting sliding plate is fixedly provided with a telescopic protection plate, a laser distance measuring sensor is arranged below the telescopic protection plate, and the laser distance measuring sensor is in signal connection with a main control board. Compared with the prior art, the device has the advantages that the laser ranging structure is arranged on one side of the limiting structure, the laser ranging structure is used for conducting spacing detection on the position of the limiting structure, the numerical value of spacing detection is displayed on the display structure so that an operator can conveniently observe the numerical value in real time, and the limiting structure is controlled to stretch out and draw back according to the detected spacing numerical value; the pipe jacking structure is clamped and limited by the limiting structure through clamping between the limiting structure and the clamping strip, then the position of the limiting structure can be effectively observed in real time, the limiting structure can be controlled and adjusted in time, and the adjusting convenience and accuracy of the limiting structure are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of limiting mechanisms, in particular to a travel limiting mechanism for a pipe jacking machine. Background Art

[0002] The pipe jacking machine is a kind of construction machinery specially designed for rock tunnels. It is suitable for various weathered rock soil conditions and has been more and more widely used in rock tunnel projects such as railways, electricity, water conservancy, coal, mining, transportation, urban underground engineering, and subways. The pipe jacking machine is an important equipment for rock tunnel construction. It is mainly used to cut rocks, crush rocks, and transport the crushed rocks to complete the construction of rock tunnels.

[0003] CN202320990010.9 introduces a limit structure for a pipe jacking machine. The coordination between the reel, the measuring ruler and the measuring tape axis can complete the limit of the pipe jacking distance, and calculate the total length of the pipe jacking according to each limit distance. Under the condition that each limit distance is different, all movement conditions can also be calculated in the same way, and it can be folded and stored after use, so that the limit is the calculation of the moving assembly and the determination of the limit position, and has the effect of storage at the same time. However, the limit structure is not convenient for real-time observation of the distance of the pipe jacking during the adjustment process, and it is not convenient for the operator to obtain the reading of the measuring ruler in time, and it is not convenient to adjust and control the limit structure in time. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide a travel limiting mechanism for a pipe jacking machine to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a travel limiting mechanism for a pipe jacking machine, comprising a pipe jacking frame, a pipe jacking assembly is fixedly installed on the top of the pipe jacking frame, a limiting slide is fixedly installed on one end of the pipe jacking assembly, a telescopic protective plate is fixedly installed on one end of the limiting slide, a laser ranging sensor is arranged below the telescopic protective plate, the laser ranging sensor signal is connected to a main control board, the main control board signal is connected to a display screen and a limiting cylinder, a limiting card block is fixedly installed on the output end of the limiting cylinder, and a limiting card strip fixedly installed on one side of the limiting card block is arranged.

[0006] Preferably, any of the above schemes has a guide groove in the middle of the jacking pipe frame, guide slide grooves matching the limiting slide plate are provided at both ends of the jacking pipe frame, and a guide block movably connected to the guide groove is provided at one end of the jacking pipe assembly.

[0007] The above technical solution is adopted: the guide groove in the middle of the pipe jacking frame is used to guide the guide block, and the guide block is used to guide the pipe jacking assembly to ensure the stability of the movement of the pipe jacking assembly.

[0008] Preferably, any of the above schemes has a connecting groove matched with the guide block in the middle of the limiting slide, and stabilizing bosses matched with the guide groove are provided at both ends of the limiting slide.

[0009] By adopting the above technical solution, the jacking pipe assembly drives the limiting slide plate to move through the guide block, and the limiting slide plate slides inside the guide slide groove through the stabilizing boss to ensure the stability of the movement of the limiting slide plate.

[0010] Preferably, any of the above schemes comprises a protective sleeve and a telescopic plate, wherein the protective sleeve is fixedly mounted on both ends of the limiting slide plate, and the protective sleeve is movably connected with the telescopic plate inside.

[0011] The above technical solution is adopted: the movement of the limiting slide drives the protective cover and the telescopic plate to produce relative movement, and the total length of the protective cover and the telescopic plate is adjusted, so that the telescopic protective plate can close and protect the guide groove during the movement of the limiting slide, thereby improving the safety inside the guide groove.

[0012] Preferably, any of the above schemes is that the laser distance measuring sensor is fixedly installed inside the pipe jacking frame, the laser distance measuring sensor is located on one side of the limiting slide plate, and the display screen is fixedly installed at one end of the pipe jacking frame.

[0013] The above technical solution is adopted: the laser ranging sensor detects the position of the stable boss, determines the position of the limit slide, transmits the detected spacing value to the display screen, and displays the spacing value through the display screen, which is convenient for observing the spacing value.

[0014] Preferably, any of the above schemes is that the limiting cylinder is fixedly mounted on both ends of the limiting slide, the limiting clamping block is movably connected to both ends of the limiting slide, and one end of the limiting clamping block is provided with a plurality of limiting teeth.

[0015] The above technical solution is adopted: after the limit slide plate is moved to the required position, the limit cylinder is controlled to extend and retract, so that the limit cylinder drives the limit block to move, and the distance between the limit block and the limit strip is adjusted.

[0016] Preferably, any of the above schemes is that the limit clamping strip is located below the limit sliding plate, and one end of the limit clamping strip is provided with a plurality of limit grooves.

[0017] By adopting the above technical solution, the limit card strip and the limit card block can be engaged to lock and limit the limit slide plate, and the limit card strip and the limit card block can be separated to move the limit slide plate.

[0018] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0019] 1. A laser distance measuring structure is set on one side of the limit structure, and the laser distance measuring structure is used to detect the distance between the position of the limit structure, and the value of the distance detection is presented on the display structure for the convenience of real-time observation by the operator, and the limit structure is controlled to be extended and retracted according to the detected distance value, and the limit structure is used to clamp the top pipe structure by the engagement between the limit structure and the card strip, so that the position of the limit structure can be effectively observed in real time, and the limit structure can be controlled and adjusted in time, thereby improving the convenience and accuracy of the limit structure adjustment.

[0020] 2. A retractable protective structure is connected to one end of the limiting structure so that the protective structure can be retracted and extended as the limiting structure moves. The laser ranging structure is safely protected by the protective structure to ensure the safety of the laser ranging structure.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a pipe jacking frame according to an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a limiting slide plate according to an embodiment of the utility model;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of a pipe jacking frame according to an embodiment of the utility model;

[0027] Among them: 1-pipe jacking frame, 2-pipe jacking assembly, 3-limiting slide plate, 4-telescopic protective plate, 41-protective cover, 42-telescopic plate, 5-laser ranging sensor, 6-display screen, 7-limiting cylinder, 8-limiting card block, 9-limiting card strip, 10-guide groove, 11-guide slide groove, 12-guide block, 13-stabilizing boss. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0029] like Figure 1-4 As shown, a travel limiting mechanism for a pipe jacking machine in an embodiment of the utility model comprises a pipe jacking frame 1, a pipe jacking assembly 2 is fixedly installed on the top of the pipe jacking frame 1, a limiting slide plate 3 is fixedly installed on one end of the pipe jacking assembly 2, a telescopic protective plate 4 is fixedly installed on one end of the limiting slide plate 3, a laser ranging sensor 5 is arranged below the telescopic protective plate 4, the laser ranging sensor 5 signal is connected to the main control board, the main control board signal is connected to the display screen 6 and the limiting cylinder 7, a limiting card block 8 is fixedly installed on the output end of the limiting cylinder 7, and a limiting card strip 9 fixedly installed with the pipe jacking frame 1 is arranged on one side of the limiting card block 8.

[0030] Preferably, any of the above schemes has a guide groove 10 in the middle of the jacking pipe frame 1, guide grooves 11 matching the limiting slide 3 are provided at both ends of the jacking pipe frame 1, and a guide block 12 movably connected to the guide groove 10 is provided at one end of the jacking pipe assembly 2.

[0031] The above technical solution is adopted: the guide groove 10 in the middle of the jacking frame 1 is used to guide the guide block 12, and the guide block 12 is used to guide the jacking assembly 2 to ensure the stability of the movement of the jacking assembly 2.

[0032] Preferably, any of the above schemes has a connection groove matched with the guide block 12 in the middle of the limiting slide 3 , and stabilizing bosses 13 matched with the guide slide groove 11 are provided at both ends of the limiting slide 3 .

[0033] By adopting the above technical solution, the jacking pipe assembly 2 drives the limiting slide plate 3 to move through the guide block 12, and the limiting slide plate 3 slides inside the guide groove 11 through the stabilizing boss 13 to ensure the stability of the movement of the limiting slide plate 3.

[0034] Preferably, any of the above schemes comprises a protective sleeve 41 and a telescopic plate 42 , wherein the protective sleeve 41 is fixedly mounted on both ends of the limiting slide plate 3 , and the protective sleeve 41 is movably connected to the telescopic plate 42 .

[0035] By adopting the above technical solution, the movement of the limiting slide 3 drives the protective cover 41 and the telescopic plate 42 to produce relative movement, and the total length of the protective cover 41 and the telescopic plate 42 is adjusted, so that the telescopic protective plate 4 can close and protect the guide groove 11 during the movement of the limiting slide 3, thereby improving the safety inside the guide groove 11.

[0036] Preferably, any of the above schemes is that the laser distance measuring sensor 5 is fixedly installed inside the pipe jacking frame 1, the laser distance measuring sensor 5 is located on one side of the limiting slide plate 3, and the display screen 6 is fixedly installed at one end of the pipe jacking frame 1.

[0037] The above technical solution is adopted: the laser ranging sensor 5 detects the position of the stabilizing boss 13, determines the position of the limit slide 3, transmits the detected spacing value to the display screen 6, and displays the spacing value through the display screen 6, which is convenient for observing the spacing value.

[0038] Preferably, any of the above schemes is that the limiting cylinder 7 is fixedly mounted on both ends of the limiting slide 3, the limiting clamping block 8 is movably connected to both ends of the limiting slide 3, and one end of the limiting clamping block 8 is provided with a plurality of limiting teeth.

[0039] The above technical solution is adopted: after the limit slide plate 3 is moved to the required position, the limit cylinder 7 is controlled to extend and retract, so that the limit cylinder 7 drives the limit block 8 to move, and adjusts the distance between the limit block 8 and the limit strip 9.

[0040] Preferably, any of the above solutions is that the limiting clip 9 is located below the limiting slide plate 3 , and one end of the limiting clip 9 is provided with a plurality of limiting grooves.

[0041] By adopting the above technical solution, the engagement of the limit card strip 9 and the limit card block 8 can lock and limit the limit slide plate 3, and the separation of the limit card strip 9 and the limit card block 8 can move the limit slide plate 3.

[0042] The utility model is a travel limiting mechanism for a pipe jacking machine, and its working principle is as follows:

[0043] The jacking pipe assembly 2 drives the limiting slide plate 3 to drive the stabilizing boss 13 to slide inside the jacking pipe frame 1, and the limiting slide plate 3 drives the protective cover 41 to slide on the surface of the telescopic plate 42. The laser ranging sensor 5 detects the distance of the position of the limiting slide plate 3, observes the distance on the display screen, and controls the limiting cylinder 7 to extend and retract at the same time.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. A laser distance measuring structure is set on one side of the limit structure, and the laser distance measuring structure is used to detect the distance between the position of the limit structure, and the value of the distance detection is presented on the display structure for the convenience of real-time observation by the operator, and the limit structure is controlled to be extended and retracted according to the detected distance value, and the limit structure is used to clamp the top pipe structure by the engagement between the limit structure and the card strip, so that the position of the limit structure can be effectively observed in real time, and the limit structure can be controlled and adjusted in time, thereby improving the convenience and accuracy of the limit structure adjustment.

[0046] 2. A retractable protective structure is connected to one end of the limiting structure so that the protective structure can be retracted and extended as the limiting structure moves. The laser ranging structure is safely protected by the protective structure to ensure the safety of the laser ranging structure.

Claims

1. A travel limit mechanism for a pipe jacking machine, comprising a pipe jacking frame (1), a pipe jacking assembly (2) being fixedly mounted on the top of the pipe jacking frame (1), and a limit slide plate (3) being fixedly mounted on one end of the pipe jacking assembly (2), characterized in that: A telescopic protective plate (4) is fixedly mounted on one end of the limit slide plate (3); a laser distance sensor (5) is arranged below the telescopic protective plate (4); the laser distance sensor (5) is signal-connected to a main control board; the main control board is signal-connected to a display screen (6) and a limit cylinder (7); a limit card block (8) is fixedly mounted on the output end of the limit cylinder (7); and a limit card strip (9) fixedly mounted to the pipe jacking frame (1) is arranged on one side of the limit card block (8).

2. A travel limiting mechanism for a pipe jacking machine as claimed in claim 1, characterized in that: A guide groove (10) is provided in the middle of the pipe jacking frame (1), guide slide grooves (11) adapted to the limit slide plate (3) are provided at both ends of the pipe jacking frame (1), and a guide block (12) movably connected to the guide groove (10) is provided at one end of the pipe jacking assembly (2).

3. A travel limiting mechanism for a pipe jacking machine as claimed in claim 2, characterized in that: A connecting groove matched with the guide block (12) is provided in the middle of the limiting slide plate (3), and stabilizing bosses (13) matched with the guide slide groove (11) are provided at both ends of the limiting slide plate (3).

4. A travel limiting mechanism for a pipe jacking machine as claimed in claim 3, characterized in that: The telescopic protective plate (4) comprises a protective sleeve (41) and a telescopic plate (42); the protective sleeve (41) is fixedly mounted on both ends of the limiting slide plate (3); and the interior of the protective sleeve (41) is movably connected to the telescopic plate (42).

5. A travel limiting mechanism for a pipe jacking machine as claimed in claim 4, characterized in that: The laser distance measuring sensor (5) is fixedly mounted inside the pipe jacking frame (1), the laser distance measuring sensor (5) is located on one side of the limiting slide plate (3), and the display screen (6) is fixedly mounted on one end of the pipe jacking frame (1).

6. A travel limiting mechanism for a pipe jacking machine as claimed in claim 5, characterized in that: The limiting cylinder (7) is fixedly mounted on the two ends of the limiting slide (3), the limiting clamping block (8) is movably connected to the two ends of the limiting slide (3), and one end of the limiting clamping block (8) is provided with a plurality of limiting teeth.

7. A travel limiting mechanism for a pipe jacking machine as claimed in claim 6, characterized in that: The limiting clamping strip (9) is located below the limiting slide plate (3), and one end of the limiting clamping strip (9) is provided with a plurality of limiting grooves.

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