A device for improving the quality of secondary lining construction joints

Abstract

The present invention proposes a device for improving the quality of secondary lining construction joints, which belongs to the technical field of tunnel construction equipment. The device includes a vehicle body and also includes: a swing arm, which is movably located on the vehicle body and has a support plate at its end; two groups of first connecting rods, which are staggered and connected to the support plate in a mirror-image manner, and each end of the two first connecting rods is provided with a rotatable first motor, and the output shaft of the first motor is connected to a cutting plate for transmission; a third motor, which is provided with a reciprocating rod that can move up and down, and the two ends of the reciprocating rod are respectively connected to the middle part of the two first connecting rods to drive the relative movement of the two. The two cutting plates are staggered and arranged on the support plate in a mirror-image manner, and the V-shaped blocks are cut and separated by cutting two intersecting seams. Compared with the traditional seam grinding process, the V-shaped seam opening cut by this method is more precise, and the dust generated is relatively less, and the safety is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and in particular relates to a device for improving the quality of secondary lining construction joints. Background Art

[0002] In recent years, the phenomenon of tunnel circumferential construction joints squeezing out blocks, affecting driving safety, has increased year by year. Various railway construction units have also made requirements for the construction of V-shaped joints. At this stage, some construction units use the process of installing rubber strips and steel strips on the secondary lining trolley for reservation, but after repeated use, they are prone to deformation and falling off and shifting, affecting the quality of the secondary lining. Some construction units use the process of manual cutting in the later stage, and a grinding wheel is often used to grind out V-shaped joints during cutting, resulting in non-standard gap size, large dust, high safety risks and low efficiency, which does not meet the development requirements of intelligent construction.

[0003] Based on this, a device for improving the quality of the secondary lining construction joint is studied. The staff only operates on the ground, and the swing arm in the vehicle body drives the cutting disc to grind automatically. It has the characteristics of standard size, high efficiency and low safety risk. Summary of the Invention

[0004] In order to solve the above problems in the prior art, a device for improving the quality of a secondary lining construction joint is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present technical solution proposes a device for improving the quality of secondary lining construction joints, comprising a vehicle body and also comprising: a swing arm, the swing arm being movably located on the vehicle body, the end of the swing arm being hinged to a support plate; two groups of first connecting rods, the two first connecting rods being hinged to the support plate in a mirror-like manner, the ends of the two first connecting rods being provided with a rotatable first motor, the output shaft of the first motor being connected to a grooved plate for transmission; a third motor, the third motor being provided with a reciprocating rod that can move up and down for transmission, the two ends of the reciprocating rod being respectively connected to the middle part of the two first connecting rods to drive the relative movement of the two first connecting rods.

[0007] Preferably, the end of the support plate is connected to an electric lifting rod, the top of the lifting rod is connected to a third motor, and the output shaft of the third motor is connected to a splitting piece.

[0008] Preferably, a water tank is provided on the vehicle body, a water spray pipe is provided on the support plate, the spray end of the water spray pipe is directed toward the position of the slotted sheet, and the water tank and the water spray pipe are connected via a water pump and a water pipe.

[0009] Preferably, a protection box is hinged at the end of the support plate, the protection box and the support plate are connected by a tension spring, and an auxiliary guide wheel is provided at the upper end of the protection box;

[0010] Preferably, a filter plate is detachably provided in the protection box, and the protection box is connected to a return pipe for discharging waste water.

[0011] Preferably, rotatable wheels are respectively provided at both ends of the first connecting rod, and a transmission belt is commonly provided between the two wheels; a support rod is fixedly connected to the support plate, and a fourth motor is connected to the support rod, and the output shaft of the fourth motor passes through the first connecting rod and is connected to the wheel at the bottom, and a transmission wheel is fixedly connected to the wheel located above, and the transmission wheel is transmission-connected to a passive wheel, and a transmission rod is fixedly connected to the passive wheel, and the transmission rod is connected to the first motor after passing through the first connecting rod.

[0012] Preferably, the output shaft of the third motor is connected to a screw rod, a nut is provided on the screw rod, the nut is fixed in the middle of the reciprocating rod, both ends of the reciprocating rod are connected to a second connecting rod, the other ends of the two second connecting rods are respectively connected to the middle of the two first connecting rods, and a torsion spring is commonly connected between the second connecting rod and the first connecting rod.

[0013] Preferably, the front end of the support plate is connected to a laser guide assembly.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. In the present invention, the vehicle body and the swing arm are used as movable parts. A support plate is hinged at the end of the swing arm. A cutting component for cutting V-shaped seams is provided on the support plate. The positions and angles of the two cutting pieces are adjusted by the first connecting rod and the reciprocating rod in the cutting component. The two cutting pieces are staggered and arranged on the support plate in a mirror-like manner. The two cutting pieces cut and separate the V-shaped blocks by cutting two intersecting seams. Compared with the traditional seam grinding process, the V-shaped seam opening cut by this method is more precise, and the dust generated is relatively less, and the safety is higher.

[0016] 2. The present invention is also provided with a splitting piece, which is used to cut the cut V-shaped block into sections to avoid affecting the subsequent cutting process. The V-shaped block is split by the splitting piece and dropped into the protective box for temporary storage to avoid safety hazards caused by falling debris and blocks.

[0017] 3. The present invention is also provided with a water spray pipe during the cutting process, through which dust is reduced at the cutting site, thereby reducing dust so that the staff can better observe the cutting status in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0019] Figure 1 It is a schematic diagram of the construction process of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 3 yes Figure 1 Enlarged view of part A.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the cutting part of the present invention.

[0023] Figure 5 yes Figure 4 The main view in .

[0024] Figure 6 yes Figure 4 Top view in .

[0025] Figure 7 It is a simplified schematic diagram of the cutting angle of the grooving sheet in the present invention.

[0026] Figure 8 yes Figure 1 Magnified view of part B.

[0027] Description of reference numerals:

[0028] 1. Tunnel; 11. Car body; 12. Water tank; 13. Rotating platform; 14. Swing arm; 15. Water return pipe; 16. Water spray pipe;

[0029] 2. Protective box; 21. Auxiliary guide wheel; 22. Filter plate; 23. Tension spring; 24. Buffer block;

[0030] 3. Support plate; 31. Grooving plate; 32. First motor; 33. First connecting rod; 34. Second connecting rod; 35. Support rod; 36. Second motor; 37. Rotating wheel; 38. Reciprocating rod; 39. Transmission wheel; 40. Passive wheel; 41. Splitting plate; 42. Third motor; 43. Electric lifting rod; 44. Laser guide assembly; 45. Transmission belt; 46. Fourth motor. DETAILED DESCRIPTION

[0031] In order to make the purposes, features, and advantages of the present invention more obvious and easy to understand, the technical solutions 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 embodiments described below are only 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 making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a centrally located component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be a centrally located component.

[0033] In addition, terms such as "long", "short", "inside", and "outside" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientation structure, and should not be understood as a limitation of the present invention.

[0034] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings.

[0035] like Figure 1-8 As shown, this embodiment proposes a device for improving the quality of a secondary lining construction joint, which is used for cutting a joint in a tunnel 1 and includes:

[0036] The vehicle body 11 and the swing arm 14, the swing arm 14 is movably located on the vehicle body 11, and a rotating platform 13 is arranged between the vehicle body 11 and the swing arm 14 to drive the swing arm 14 to rotate at multiple angles, and a support plate 3 is hinged at the end of the swing arm 14, and a control motor is arranged between the swing arm 14 and the support plate 3 to control the relative movement of the two. It also includes two groups of first connecting rods 33, and the two first connecting rods 33 are hinged on the support plate 3 in a mirror-like manner. A rotatable first motor 32 is arranged at the end of the two first connecting rods 33, and a slotted piece 31 is connected to the output shaft of the first motor 32 for transmission; it also includes a second motor 36, and a reciprocating rod 38 that can move up and down is arranged on the second motor 36 for transmission, and the two ends of the reciprocating rod 38 are respectively connected to the middle part of the two first connecting rods 33 to drive the two to achieve relative movement.

[0037] refer to Figure 4 and 7In the actual construction process, the cutting position and cutting depth are adjusted by the swing arm 14. The two cutting blades 31 are arranged in a mirror-image manner to prevent interference between the two during work. Compared with the conventional method of using a cutting blade to grind out a V-shaped groove, this design has faster construction efficiency. The angle of the two cutting blades 31 can also be adjusted by the reciprocating rod 38 to realize the cutting of V-shaped seams with different opening sizes, thereby achieving the purpose of precise cutting and a wider range of applications.

[0038] In some embodiments, an electric lifting rod 43 is connected to the end of the support plate 3, a third motor 42 is connected to the top of the electric lifting rod 43, and a splitting piece 41 is connected to the output shaft of the third motor 42. During the cutting process of the two cutting pieces 31, the V-shaped blocks cut off are long strips, which may easily cause safety hazards and affect subsequent construction. After cutting a certain section, the splitting piece 41 is moved upward to cut off the long V-shaped blocks to avoid the excessively long V-shaped blocks drooping and affecting subsequent construction.

[0039] In some embodiments, a water tank 12 is provided on the vehicle body 11, and a water spray pipe 16 is provided on the support plate 3. The spray end of the water spray pipe 16 is directed toward the position of the grooving piece 31, and the water tank 12 and the water spray pipe 16 are connected through a water pump and a water pipe. During the cutting process, a certain amount of dust is generated, which affects the staff's observation of the actual cutting conditions, and may also affect the subsequent laser guide assembly 44, causing its cutting position to deviate. Since the grooving piece 31 is cut by friction, a certain amount of heat will be generated. If it is not cooled, the grooving piece 31 will wear faster and the cutting force will be reduced.

[0040] In some embodiments, a protective box 2 is hinged at the end of the support plate 3, and the protective box 2 and the support plate 3 are connected by a tension spring 23. Under the action of the tension spring 23, the protective box 2 and the support plate 3 are in a vertical state. A buffer block 24 is provided between the protective box 2 and the support plate 3 to prevent direct collision between the two and cause damage. An auxiliary guide wheel 21 is provided at the upper end of the protective box 2. During the cutting process, the auxiliary guide wheel 21 is used to support the inner wall of the tunnel 1 to avoid direct wear and tear. It can also be closer to the inner wall and can receive more dropped objects. The auxiliary guide wheel 21 is located on the other side of the hinge between the protective box 2 and the support plate 3. During the cutting process, the V-shaped block after cutting is received by the protective box 2 to prevent it from falling directly and causing certain safety hazards. At the same time, the protective box 2 is also used to catch waste water. When the water in the water pipe 16 is sprayed to the cutting point, it has been contaminated. Allowing it to fall will affect the environment in the tunnel 1.

[0041] Furthermore, a filter plate 22 is detachably provided in the protective box 2. The protective box 2 is connected to a return pipe 15 for discharging waste water. When the water pipe 16 sprays water to cool down and reduce dust, some gravel will enter the protective box 2. In order to avoid blocking the return pipe 15 and making it unable to discharge the waste water, the filter plate 22 is used to intercept the gravel and V-shaped blocks above, so that the waste water can be discharged smoothly.

[0042] In some embodiments, rotatable pulleys 37 are respectively provided at both ends of the first connecting rod 33, and a transmission belt 45 is commonly provided between the two rotating pulleys 37; a support rod 35 is fixedly connected to the support plate 3, and a fourth motor 46 is connected to the support rod 35, and the output shaft of the fourth motor 46 passes through the first connecting rod 33 and is connected to the rotating pulley 37 at the bottom. The output shaft of the fourth motor 46 is provided with a bearing at the position passing through the first connecting rod 33, and the positioning of the bottom of the first connecting rod 33 is achieved by the bearing, and a relative hinged state is achieved with the support plate 3; a transmission wheel 39 is fixedly connected to the rotating pulley 37 at the top, and the transmission wheel 39 is transmission-connected to the passive wheel 40, and the passive wheel 40 is fixedly connected to a transmission rod, which passes through the first connecting rod 33 and is connected to the first motor 32; this design further controls the rotation of the first motor 32, realizes more precise adjustment of the two cutting blades 31, and can also construct gradient V-shaped seams, with a more flexible scope of application and more precise cutting control.

[0043] In some embodiments, the output shaft of the third motor 42 is connected to a screw rod, a nut is provided on the screw rod, the nut is fixed to the middle of the reciprocating rod 38, and the reciprocating rod 38 is hinged with a second connecting rod 34 at both ends. The other ends of the two second connecting rods 34 are respectively connected to the middle of the two first connecting rods 33, and a torsion spring is commonly connected between the second connecting rod 34 and the first connecting rod 33; continue to refer to Figure 4 and 7 The fourth motor 46 drives the screw rod to rotate, and the nut is sleeved on the screw rod and realizes reciprocating motion up and down through certain limits on both sides. The nut further drives the reciprocating rod 38 to move. For example, the reciprocating rod 38 moves downward. During the movement, the second connecting rod 34 pulls the first connecting rod 33 to rotate with its bottom as the center point, so that the two first connecting rods 33 are moved close to each other in the center. The angles of the two cutting pieces 31 are further adjusted to make them cross-shaped, and a complete V-shaped seam is cut out. Under the action of the torsion spring, when the nut does not apply force to the first connecting rod 33, the first connecting rod 33 maintains the current state for cutting. Only when the nut applies tension or push to the first connecting rod 33 can the first connecting rod 33 move around the center point.

[0044] In some embodiments, a laser guide assembly 44 is connected to the front end of the support plate 3. During construction, the laser guide assembly 44 is connected to the smart device to control the direction of travel, calculate the cutting position and parameters such as depth and angle, and avoid offset and the like during the cutting process.

[0045] The present invention also proposes a construction method of a secondary lining construction joint quality improvement device, which uses any of the above-mentioned secondary lining construction joint quality improvement devices and comprises the following steps:

[0046] S1: Move the vehicle body 11 to one side of the construction area, control the swing arm 14 so that the support plate 3 is close to the inner wall of the tunnel 1, turn on the laser guide assembly 44, and pre-input the movement direction of the swing arm 14;

[0047] S2: Start the first motor 32 to rotate the two grooving blades 31, start the second motor 36 to control the angles of the two grooving blades 31, and then start the fourth motor 46 to move the reciprocating rod 38 up and down to further adjust the position of the first connecting rod 33 so that the two grooving blades 31 are in a cross shape. After the adjustment is completed, the swing arm 14 is further moved to allow the two grooving blades 31 to penetrate into the inner wall of the tunnel 1 for cutting;

[0048] S3: During the cutting process, the swing arm 14 is moved according to the pre-input position. During the movement, the water spray pipe 16 sprays water on the cutting area to cool down and reduce dust. After cutting a certain distance, the splitter 41 moves upward to separate the cut V-shaped block from the inner wall of the tunnel 1;

[0049] S4: The separated V-shaped blocks fall into the rear protection box 2, and the filter plate 22 in the protection box 2 blocks the fallen V-shaped blocks. The wastewater after cooling and dust reduction enters the protection box 2, is filtered, and is discharged from the return pipe 15;

[0050] S5: Stop cutting after cutting to the middle of the tunnel 1, move the vehicle body 11 to the other side, clean the protective box 2, and repeat steps S1 to S4 to cut the inner wall of the other side of the tunnel 1.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A secondary lining construction joint quality improvement device, comprising a vehicle body, characterized in that: Also includes: A swing arm, the swing arm is movably located on the vehicle body, and a support plate is hinged to the end of the swing arm; Two sets of first connecting rods, the two first connecting rods are staggered and hinged on the support plate in a mirror-image shape, and the ends of the two first connecting rods are each provided with a rotatable first motor, and the output shaft of the first motor is transmission-connected with a slotted piece; A second motor is provided with a reciprocating rod that can move up and down, and the two ends of the reciprocating rod are respectively connected to the middle part of the two first connecting rods to drive the relative movement of the two connecting rods; The end of the support plate is connected to an electric lifting rod, the top of the lifting rod is connected to a third motor, and the output shaft of the third motor is connected to a split piece; The two ends of the first connecting rod are respectively provided with rotatable wheels, and a transmission belt is commonly provided between the two wheels; a support rod is fixedly connected to the support plate, and the support rod is connected to a fourth motor, and the output shaft of the fourth motor passes through the first connecting rod and is connected to the rotating wheel at the bottom, and the rotating wheel located above is fixedly connected to a transmission wheel, and the transmission wheel is transmission-connected to a passive wheel, and the passive wheel is fixedly connected to a transmission rod, and the transmission rod passes through the first connecting rod and is connected to the first motor; The second motor output shaft is connected to a screw rod, a nut is provided on the screw rod, the nut is fixed in the middle of the reciprocating rod, both ends of the reciprocating rod are connected to a second connecting rod, the other ends of the two second connecting rods are respectively connected to the middle of the two first connecting rods, and a torsion spring is connected between the second connecting rod and the first connecting rod; The front end of the support plate is connected with a laser guide assembly.

2. A secondary lining construction joint quality improvement device according to claim 1, characterized in that: A water tank is provided on the vehicle body, a water spray pipe is provided on the support plate, a spray end of the water spray pipe is directed toward the slotted sheet, and the water tank and the water spray pipe are connected via a water pump and a water pipe.

3. A secondary lining construction joint quality improvement device according to claim 2, characterized in that: A protection box is hinged at the end of the support plate. The protection box and the support plate are connected via a tension spring. An auxiliary guide wheel is provided at the upper end of the protection box.

4. A secondary lining construction joint quality improvement device according to claim 3, characterized in that: A filter plate is detachably provided in the protection box, and the protection box is connected to a return pipe for discharging waste water.

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