Steel bar arch frame conveying structure and milling excavator

Abstract

The utility model provides a steel bar lagging jack conveying structure and milling excavator, including connecting strip seat, conveying track and bracing frame, connecting strip seat is connected with one side of milling excavator body, conveying track is connected with connecting strip seat top and extends along the milling excavator body back and forth direction, bracing frame is connected with conveying track top in sliding mode, the bracing frame is connected with the milling excavator body back and forth direction, and the milling excavator body back and forth direction extends along the milling excavator body back and forth direction. At least two upper brackets are arranged above the supporting frame, and the upper brackets are provided with front-back through brackets. According to the steel bar arch frame conveying structure, the conveying rail is installed on the side portion of the milling excavator body through the connecting strip base, the supporting frame on the conveying rail is used for bearing a steel bar framework, the supporting frame is pushed to drive the steel bar arch frame to move forwards to the front side of the milling excavator body, and orderly conveying of the steel bar arch frame from back to front is achieved. According to the conveying structure, the side space of the milling excavator body is fully utilized, the conveying efficiency of the just-entering arch frame is effectively improved, and the supporting efficiency of a tunnel is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar arch frame transportation, and more specifically, relates to a steel bar arch frame conveying structure and a milling excavator. Background Art

[0002] In the process of tunnel construction, milling machines are often used for tunnel milling operations. During operation, milling machines will not damage the soil structure, and the amount of dust and noise are low, so the impact of milling machines on the surrounding environment is small. Milling machines are widely used in the excavation of tunnels, ditches, and municipal pipelines; they are also used for highway pavement crushing, mining, and rock frozen soil excavation.

[0003] As the tunnel milling and excavation work proceeds, steel arch frames are needed to support the internal space of the tunnel. Due to the small space inside the tunnel, the traditional method of manually transporting steel arch frames to the front end of the tunnel is difficult to operate, consumes a lot of manpower, and has severe space constraints, which affects the support efficiency of the steel arch frames. Utility Model Content

[0004] The utility model aims to provide a steel bar arch frame conveying structure and a milling excavator, which can improve the conveying efficiency of the steel bar arch frame and reduce the difficulty of workers' operation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a steel bar arch conveying structure, including a connecting bar seat, a conveying track and a support frame, the connecting bar seat is connected to one side of the milling machine body, the conveying track is connected to the top of the connecting bar seat and extends along the front and rear direction of the milling machine body, the support frame is slidably connected to the top of the conveying track, at least two upper supporting seats are provided above the support frame, and the upper supporting seats are provided with brackets with openings arranged upward and passing through front and back, and the brackets are used to support and limit the steel bar arches.

[0006] In a possible implementation, a rolling groove opening upward and extending in the front-to-back direction is provided on the conveying track, and at least two groups of rollers rollingly connected to the rolling groove are provided at the bottom of the support frame.

[0007] In some embodiments, two mounting seats are provided below the support frame, and the two mounting seats are spaced apart along the direction of the conveying track. Two groups of rollers are provided, and the two groups of rollers are rotatably connected to the bottom of the two mounting seats in a one-to-one correspondence.

[0008] In a possible implementation, the mounting base has a mounting arm extending downward, a horizontally extending rotating shaft is provided through the mounting arm, and each group of rollers includes two rollers symmetrically arranged on both sides of the mounting arm and connected to both ends of the rotating shaft in a one-to-one correspondence.

[0009] In some embodiments, a screw for driving the support frame is provided on the conveying track. The screw is rotatably connected to the conveying track, and one end of the screw is connected to a rotating drive member. The screw passes through the mounting arm and is threadedly matched with the mounting arm. The screw is used to drive the support frame to move along the conveying track.

[0010] In one possible implementation, limit blocks are provided at both ends of the conveying track, which are located in the rolling groove and are used to limit the movement range of the support frame. The top two sides of the conveying track are respectively connected with upper strips extending toward the central axis side of the rolling groove, and the bottom surface of the upper strip is in rolling cooperation with the roller.

[0011] In one possible implementation, the support frame includes a supporting base plate, columns and oblique supports. Two columns are provided above the supporting base plate, two cross-arranged oblique supports are provided between the two columns, and two upper supporting seats are provided, which are arranged one-to-one above the columns.

[0012] In some embodiments, the column has an inner groove with an opening facing the oblique support, the inner groove is vertically penetrated, and the end of the oblique support is disposed in the inner groove.

[0013] In one possible implementation, the connecting strip seat includes a connecting strip plate, a reinforcing lining plate and supporting ribs. The connecting strip plate is connected to the side wall of the milling machine body, the reinforcing lining plate is connected to the outer side wall of the connecting strip plate, the supporting ribs are connected to the outer side of the reinforcing lining plate, the plate surface of the supporting ribs is arranged perpendicular to the plate surface of the reinforcing lining plate, and the conveying track is connected to the top of the supporting ribs.

[0014] The utility model also provides a milling and digging machine, which comprises a steel bar arch frame conveying structure.

[0015] Compared with the prior art, the scheme shown in the embodiment of the present application is a scheme in which the conveying track is installed on the side of the milling machine body through a connecting bar seat, the support frame on the conveying track is used to support the steel bar skeleton, and the steel bar arch frame is driven forward to the front side of the milling machine body by pushing the support frame, thereby realizing orderly conveying of the steel bar arch frame from back to front. The conveying structure effectively reduces the difficulty of workers in supplying the steel bar arch frame, makes full use of the side space of the milling machine body, effectively improves the conveying efficiency of the arch frame, improves the support efficiency of the tunnel, shortens the operation time, and improves the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the main structure of a milling machine provided with a steel bar arch conveying structure according to an embodiment of the utility model;

[0018] Figure 2 For the utility model embodiment Figure 1 A schematic diagram of a top view structure;

[0019] Figure 3 A schematic diagram of the structure of the steel bar arch conveying structure provided by the embodiment of the utility model;

[0020] Figure 4 For the utility model embodiment Figure 3 The partially enlarged structural diagram of middle Ⅰ;

[0021] Figure 5 For the utility model embodiment Figure 3 The schematic diagram of the partial enlarged structure of middle Ⅱ;

[0022] Figure 6 For the utility model embodiment Figure 1 An enlarged structural diagram of the middle support base plate, the mounting seat and the roller;

[0023] Figure 7 For the utility model embodiment Figure 6 The left side structural diagram of the middle mounting seat and roller;

[0024] Figure 8 For the utility model embodiment Figure 4 The left side structural diagram of the conveying track, mounting base and rollers;

[0025] Fig. 9 A schematic diagram of a left side cross-sectional structure of a supporting base plate, a mounting seat, a roller, a rotary drive member and a lead screw provided in another embodiment of the utility model.

[0026] Among them, the reference numerals in the figure are:

[0027] 1. Connecting bar seat; 11. Connecting strip plate; 12. Reinforced lining plate; 13. Support rib; 2. Conveying track; 21. Rolling groove; 22. Limit block; 23. Upper strip plate; 3. Support frame; 31. Supporting bottom plate; 32. Column; 33. Oblique support; 34. Upper support seat; 36. Inner groove; 4. Mounting seat; 41. Mounting arm; 42. Rotating shaft; 43. Roller; 5. Screw; 51. Rotating drive member; 6. Steel bar arch frame; 7. Milling machine body. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the 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 utility model. 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. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] Please also read Figures 1 to 9 The steel bar arch frame conveying structure and the milling machine provided by the utility model are now described. The steel bar arch frame conveying structure includes a connecting bar seat 1, a conveying track 2 and a support frame 3. The connecting bar seat 1 is connected to one side of the milling machine body 7. The conveying track 2 is connected to the top of the connecting bar seat 1 and extends along the front-to-back direction of the milling machine body 7. The support frame 3 is slidably connected to the top of the conveying track 2. At least two upper supporting seats 34 are provided above the support frame 3. The upper supporting seats 34 are provided with brackets with openings arranged upward and through the front and back. The brackets are used to support and limit the steel bar arch frame 6.

[0031] Compared with the prior art, the steel bar arch frame conveying structure provided in the present embodiment installs the conveying track 2 on the side of the milling machine body 7 through the connecting bar seat 1, uses the support frame 3 on the conveying track 2 to support the steel bar skeleton, and drives the steel bar arch frame 6 to move forward to the front side of the milling machine body 7 by pushing the support frame 3, thereby realizing the orderly conveying of the steel bar arch frame 6 from the back to the front. The conveying structure effectively reduces the difficulty of workers in feeding the steel bar arch frame 6, makes full use of the side space of the milling machine body 7, effectively improves the conveying efficiency of the arch frame, improves the support efficiency of the tunnel, shortens the operation time, and improves the operation efficiency.

[0032] In one possible implementation, see Figures 1 to 9The conveying track 2 is provided with a rolling groove 21 which opens upward and extends in the front-to-back direction, and the bottom of the support frame 3 is provided with at least two groups of rollers 43 which are rollingly connected to the rolling groove 21. By providing the rolling groove 21 on the conveying track 2, the rollers 43 at the bottom of the support frame 3 are used to achieve rolling cooperation with the rolling groove 21, which effectively reduces the friction force during the movement of the support frame 3 and improves the conveying efficiency of the steel bar arch 6. The support frame 3 can be driven by manual or motor, linear module or screw, and the above rolling cooperation structure is convenient for reducing energy consumption.

[0033] For some examples, see Figures 1 to 9 Two mounting seats 4 are provided below the support frame 3. The two mounting seats 4 are spaced apart along the direction of the conveying track 2. Two groups of rollers 43 are provided. The two groups of rollers 43 are rotatably connected to the bottom of the two mounting seats 4 in a one-to-one correspondence. The mounting seats 4 below the support frame 3 are used to install the rollers 43. The two groups of rollers 43 are used to support the upper support frame 3, thereby ensuring the reliability of the support. The main shaft of the roller 43 is arranged along the width direction of the conveying track 2. Each group of rollers 43 may include a plurality of rollers 43 spaced apart along the axial direction thereof, thereby providing the stability of the support and the smoothness of the movement, thereby preventing the upper support frame 3 from tipping over and tilting, and ensuring the effective movement of the steel bar arch frame 6.

[0034] In one possible implementation, see Figures 1 to 9 The mounting seat 4 has a mounting arm 41 extending downward, and a horizontally extending rotating shaft 42 is penetrated through the mounting arm 41. Each group of rollers 43 includes two rollers 43 symmetrically arranged on both sides of the mounting arm 41 and connected to both ends of the rotating shaft 42 one by one.

[0035] In this embodiment, the mounting arm 41 below the mounting seat 4 extends forward and downward by a certain length, so that a structural avoidance is formed between the mounting seat 4 and the conveying track 2 to avoid positional interference between components. Specifically, each group of rollers 43 includes two rollers 43 symmetrically arranged on both sides of the mounting arm 41, forming a total of four rollers 43 supported under the support frame 3, ensuring the stability of the support. A bearing can be arranged between the rotating shaft 42 and the roller 43 to reduce the friction during the rolling process.

[0036] For some examples, see Figures 1 to 9 The conveying track 2 is provided with a lead screw 5 for driving the support frame 3. The lead screw 5 is rotatably connected to the conveying track 2, and one end of the lead screw 5 is connected to a rotating driving member 51. The lead screw 5 penetrates the installation arm 41 and is threadedly matched with the installation arm 41. The lead screw 5 is used to drive the support frame 3 to move along the conveying track 2. The lead screw 5 drives the installation arm 41 to move horizontally. The setting of the lead screw 5 saves the tediousness of manual pushing, reduces the labor intensity of workers, avoids the occupation of space, and improves the conveying efficiency of the steel bar arch 6.

[0037] In one possible implementation, see Figures 1 to 9 A limit stopper 22 is provided at both ends of the conveying track 2. The limit stopper 22 is located in the rolling groove 21 and is used to limit the movement range of the support frame 3. The top two sides of the conveying track 2 are respectively connected with an upper strip 23 extending toward the central axis side of the rolling groove 21, and the bottom surface of the upper strip 23 is in rolling cooperation with the roller 43.

[0038] In this embodiment, by setting limit blocks 22 at both ends of the conveying track 2, the moving position of the roller 43 can be limited to prevent the roller 43 from escaping from the conveying track 2 due to excessive forward or backward movement.

[0039] At the same time, an upper plate 23 is provided above the conveying track 2, and the upper plate 23 is used to limit the roller 43 in the up and down directions to prevent the roller 43 from escaping from the conveying track 2 due to structural vibration, thereby ensuring the structural stability of the support frame 3 during the conveying process.

[0040] In one possible implementation, see Figures 1 to 9 The support frame 3 includes a supporting base plate 31, columns 32 and oblique supports 33. Two columns 32 are provided above the supporting base plate 31, two cross-arranged oblique supports 33 are provided between the two columns 32, and two upper supporting seats 34 are provided, which are arranged one by one above the columns 32.

[0041] In this embodiment, the columns 32 extend upward on the supporting bottom plate 31 to reliably support the middle position of the steel bar arch frame 6, thereby avoiding position interference between the lower position of the steel bar arch frame 6 and the milling machine body 7. An upper support seat 34 is provided above each column 32 to form symmetrical support for both sides of the steel bar arch frame 6, thereby ensuring the supporting stability of the steel bar arch frame 6.

[0042] For some examples, see Figures 1 to 9 The column 32 has an inner groove 36 with an opening toward the oblique support 33. The inner groove 36 is arranged to pass through from top to bottom, and the end of the oblique support 33 is arranged in the inner groove 36. The inner groove 36 arranged on the column 32 can reduce the weight of the structure and save material consumption. On the other hand, it is convenient to weld the end of the oblique support 33 into the inner groove 36, increase the connection area between the oblique support 33 and the column 32, and improve the reliability of the connection.

[0043] In one possible implementation, see Figures 1 to 9The connecting strip seat 1 includes a connecting strip plate 11, a reinforcing lining plate 12 and a supporting rib 13. The connecting strip plate 11 is connected to the side wall of the milling machine body 7, the reinforcing lining plate 12 is connected to the outer side wall of the connecting strip plate 11, the supporting rib 13 is connected to the outer side of the reinforcing lining plate 12, the plate surface of the supporting rib 13 is arranged perpendicular to the plate surface of the reinforcing lining plate 12, and the conveying track 2 is connected to the top of the supporting rib 13.

[0044] In this embodiment, the connecting strip plate 11 of the connecting strip seat 1 is directly connected to the side of the milling machine body 7 through a connecting piece. In order to improve the connection strength, a plurality of reinforcing lining plates 12 are also closely connected to the outer wall of the connecting strip plate 11. The outer side of each reinforcing lining plate 12 is provided with a supporting rib 13 supported under the conveying track 2. The supporting rib 13 and the plate surface of the reinforcing lining plate 12 are arranged perpendicular to each other. The upper end surface of the supporting rib 13 is used to support the conveying track 2 and is reliably connected to the bottom surface of the conveying track 2.

[0045] On this basis, the connecting strip 11 and the reinforcing lining 12 are respectively located on the side of the connecting strip 11 close to the milling machine body 7, and the bottom surface of the conveying track 2 is connected to the upper end surface of the supporting rib 13. In order to enable the steel bar arch 6 above the conveying track 2 to effectively avoid the side of the milling machine body 7, the conveying track 2 is arranged above the supporting rib 13, and the connecting strip 11 and the reinforcing lining 12 are respectively protruded from the conveying track 2 on the side close to the milling machine body 7, so that there is a certain space between the steel bar arch 6 and the side wall of the milling machine body 7 to avoid position interference between the two.

[0046] Based on the same inventive concept, the embodiment of the present application also provides a milling machine, which includes a steel bar arch conveying structure. The milling machine installs the conveying track 2 on the side of the milling machine body 7 through the connecting bar seat 1, uses the support frame 3 on the conveying track 2 to support the steel bar skeleton, and drives the steel bar arch 6 to move forward to the front side of the milling machine body 7 by pushing the support frame 3, so as to realize the orderly conveying of the steel bar arch 6 from the back to the front. The conveying structure effectively reduces the difficulty of workers in feeding the steel bar arch 6, makes full use of the side space of the milling machine body 7, effectively improves the conveying efficiency of the arch, improves the support efficiency of the tunnel, shortens the operation time, and improves the operation efficiency.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The steel bar arch conveying structure is characterized by: The invention comprises a connecting bar seat (1), a conveying track (2) and a support frame (3), wherein the connecting bar seat (1) is connected to one side of a milling machine body (7), the conveying track (2) is connected to the top of the connecting bar seat (1) and extends along the front-rear direction of the milling machine body (7), the support frame (3) is slidably connected to the top of the conveying track (2), at least two upper support seats (34) are arranged above the support frame (3), and the upper support seats (34) are provided with brackets which are opened upward and pass through from front to back, and the brackets are used to support and limit the steel bar arch frame (6).

2. The steel bar arch conveying structure according to claim 1, characterized in that: The conveying track (2) is provided with a rolling groove (21) which opens upward and extends in the front-rear direction, and the bottom of the support frame (3) is provided with at least two groups of rollers (43) which are rollingly connected to the rolling groove (21).

3. The steel bar arch conveying structure according to claim 2, characterized in that: Two groups of mounting seats (4) are provided below the support frame (3), and the two mounting seats (4) are arranged at intervals along the direction of the conveying track (2). Two groups of rollers (43) are provided, and the two groups of rollers (43) are rotatably connected to the bottom of the two mounting seats (4) in a one-to-one correspondence.

4. The steel bar arch conveying structure according to claim 3, characterized in that: The mounting seat (4) has a mounting arm (41) extending downwards, and a horizontally extending rotating shaft (42) is provided through the mounting arm (41). Each group of rollers (43) includes two rollers (43) symmetrically arranged on both sides of the mounting arm (41) and connected to both ends of the rotating shaft (42) in a one-to-one correspondence.

5. The steel bar arch conveying structure according to claim 4, characterized in that: The conveying track (2) is provided with a lead screw (5) for driving the support frame (3); the lead screw (5) is rotatably connected to the conveying track (2), and one end of the lead screw (5) is connected to a rotating driving member (51); the lead screw (5) passes through the mounting arm (41) and is threadedly engaged with the mounting arm (41); the lead screw (5) is used to drive the support frame (3) to move along the conveying track (2).

6. The steel bar arch conveying structure according to claim 2, characterized in that: The two ends of the conveying track (2) are respectively provided with limit blocks (22), the limit blocks (22) are located in the rolling groove (21) and are used to limit the movement range of the support frame (3), and the top two sides of the conveying track (2) are respectively connected with upper strips (23) extending toward the central axis side of the rolling groove (21), and the bottom surface of the upper strip (23) is in rolling cooperation with the roller (43).

7. The steel bar arch conveying structure according to any one of claims 1 to 6, characterized in that: The support frame (3) comprises a supporting base plate (31), columns (32) and oblique supports (33); two columns (32) are provided above the supporting base plate (31); two cross-arranged oblique supports (33) are provided between the two columns (32); and two upper supporting seats (34) are provided and are arranged one-to-one above the columns (32).

8. The steel bar arch conveying structure according to claim 7, characterized in that: The upright column (32) has an inner groove (36) with an opening facing the oblique support (33); the inner groove (36) is arranged to penetrate from top to bottom; and the end of the oblique support (33) is arranged in the inner groove (36).

9. The steel bar arch conveying structure according to any one of claims 1 to 6, characterized in that: The connecting strip seat (1) comprises a connecting strip plate (11), a reinforcing lining plate (12) and a supporting rib (13); the connecting strip plate (11) is connected to the side wall of the milling machine body (7); the reinforcing lining plate (12) is connected to the outer side wall of the connecting strip plate (11); the supporting rib (13) is connected to the outer side of the reinforcing lining plate (12); the plate surface of the supporting rib (13) is arranged perpendicular to the plate surface of the reinforcing lining plate (12); and the conveying track (2) is connected above the supporting rib (13).

10. A milling machine, characterized in that: It comprises the steel bar arch frame conveying structure described in any one of claims 1-9.

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