Automatic waterproof board laying and mounting trolley

Abstract

A waterproof board automatic laying trolley, comprising a beam frame and a walking mechanism; the bottom of the beam frame is provided with a plurality of height-adjustable support columns, and the bottom of the support column is provided with the walking mechanism; the walking mechanism comprises a mounting frame, a linear walking unit and a steering mechanism, the linear walking unit and the steering mechanism are both mounted on the mounting frame, the mounting frame is mounted on the bottom of the support column, the linear walking unit is supported on the bottom of the mounting frame, and the steering mechanism is used for driving the linear walking unit to rotate around a vertical rotation shaft; the linear walking unit is used for driving the beam frame to move; through cooperation of the linear walking unit and the steering mechanism, the trolley can not only move linearly, but also realize overall translation, greatly improve the adaptability of the waterproof board automatic laying trolley in complex construction environment, significantly enhance the practicability, effectively solve the problem of single movement mode of the traditional trolley, and bring higher flexibility and convenience for tunnel secondary lining waterproof layer construction.

Description

Technical Field

[0001] This invention relates to the field of special machinery technology for tunnel construction, and in particular to an automatic waterproofing membrane laying trolley. Background Technology

[0002] In the field of tunnel engineering construction, the construction of the secondary lining waterproof layer is a key step in ensuring the waterproof performance of the tunnel and extending its service life. In the existing technology of tunnel secondary lining waterproof layer construction, plastic sheets are usually selected as the waterproof material. However, during the laying of the waterproof sheet, traditional manual laying relies entirely on manual operation. Workers need to expend a lot of physical strength to carry, unfold and fix the waterproof sheet, which makes their labor intensity extremely high. At the same time, the speed of manual laying is related to the skill level of the construction workers. More importantly, the instability of manual operation makes it difficult to achieve the high standard of construction requirements for waterproof sheet laying, which may adversely affect the waterproof effect of the tunnel.

[0003] To effectively address these issues, existing technologies have introduced automatic waterproofing membrane laying trolleys for waterproofing membrane laying in tunnel construction. These trolleys mainly consist of four parts: a walking system, a lifting system, a hydraulic system, and a support frame. They are capable of automatically laying waterproofing membranes and geotextiles, and can coordinate with rebar tying and tunnel wall leveling operations, achieving an integrated construction process. This not only significantly reduces the labor intensity of workers, freeing them from heavy physical labor, but also greatly improves the efficiency of waterproofing membrane laying, effectively promoting the tunnel construction process.

[0004] However, existing automatic waterproof membrane laying trolleys are not perfect. Their walking system has obvious limitations. This system mainly consists of a walking track and a load-bearing wheel mechanism. This structural design means that during actual operation, the automatic waterproof membrane laying trolley can only move in a straight line along the preset walking track and cannot perform translational movements. This makes it difficult for the trolley to flexibly adjust its position when facing complex and ever-changing tunnel construction environments, and it cannot meet diverse construction needs. For example, in tunnel curves, areas requiring precise alignment, or sections where track laying is inconvenient, the trolley's operation will be greatly restricted, thus seriously affecting construction efficiency and quality. Its poor practicality has, to some extent, limited the widespread application of automatic waterproof membrane laying trolleys in tunnel construction. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic waterproof membrane laying trolley, which improves the adaptability of the automatic waterproof membrane laying trolley in complex construction environments, significantly enhances its practicality, effectively solves the problem of the single movement mode of traditional trolleys, and brings greater flexibility and convenience to the construction of tunnel secondary lining waterproof layer.

[0006] To achieve the above objectives, the present invention provides an automatic waterproof membrane laying trolley, including a beam frame and a traveling mechanism; the bottom of the beam frame is provided with multiple height-extendable support columns, and the traveling mechanism is installed at the bottom of the support columns. The traveling mechanism includes a mounting frame, a linear traveling unit, and a steering mechanism. The linear traveling unit and the steering mechanism are both mounted on the mounting frame, which is mounted at the bottom of the support columns. The linear traveling unit is supported at the bottom of the mounting frame. The steering mechanism is used to drive the linear traveling unit to rotate around a vertical rotation axis, and the linear traveling unit is used to drive the beam frame to move.

[0007] In this embodiment, the linear travel unit includes a mounting arm, a drive shaft, load-bearing wheels, and a drive assembly. The steering mechanism includes a first drive motor, a transmission shaft, and a transmission mechanism. A transmission shaft is rotatably mounted at the center of the mounting frame base plate. The top end of the transmission shaft extends from the top surface of the mounting frame, and the top end of the transmission shaft is connected to the output end of the first drive motor through the transmission mechanism. The bottom end of the transmission shaft extends from the bottom surface of the mounting frame, and the bottom end of the transmission shaft is fixedly connected to the mounting arm. A drive shaft is rotatably mounted on the mounting arm, and load-bearing wheels are respectively mounted at both ends of the drive shaft. The drive shaft is driven to rotate by the drive assembly.

[0008] In this embodiment, the transmission mechanism is a worm gear mechanism, which includes a transmission worm wheel and a transmission worm. A first drive motor is mounted on the mounting frame, and a transmission worm is coaxially mounted on the output end of the first drive motor. A transmission worm wheel is coaxially mounted on the transmission shaft, and the transmission worm meshes with the transmission worm wheel.

[0009] In this embodiment, a mounting shell is also installed on the mounting frame, which encloses and seals the transmission mechanism.

[0010] In this embodiment, fixing lugs are provided on both sides of the bottom of the mounting shell, and the mounting shell is detachably connected to the mounting frame through the fixing lugs.

[0011] In this embodiment, two limiting rings are fixedly mounted on the drive shaft. The two limiting rings are respectively set on the bottom plate and the upper and lower sides of the mounting frame. A ball bearing is coaxially mounted on the side of the limiting ring facing the mounting frame. The limiting ring is connected to the mounting frame through the ball bearing. The limiting ring limits the axial displacement of the drive shaft.

[0012] In this embodiment, the drive components all include a second drive motor, a gearbox, and an output gear; a mounting cavity is provided in the middle of the mounting arm, the drive shaft passes through the mounting cavity, and a transmission gear is coaxially mounted on the drive shaft inside the mounting cavity. The second drive motor and the gearbox are mounted on the outer side wall of the mounting arm. The output end of the second drive motor is connected to the input end of the gearbox, and an output gear is mounted on the output end of the gearbox. The output gear meshes with the transmission gear.

[0013] In this embodiment, a protective shell is installed on the outer side wall of the mounting arm, and the protective shell seals and encloses the drive assembly and the mounting cavity.

[0014] In this embodiment, a heat dissipation mechanism is also provided on the outer side wall of the protective shell. The heat dissipation mechanism includes a heat dissipation plate. A heat dissipation port is provided on the protective shell at a position corresponding to the second drive motor. The heat dissipation plate is installed in the heat dissipation port. A heat dissipation groove is provided on the heat dissipation plate. A filter screen is also inserted in the heat dissipation port and in the gap of the heat dissipation plate.

[0015] In this embodiment, the top of the mounting frame is provided with fixing ear plates on both sides for connecting with the side of the support column. The fixing ear plates are detachably connected to the outer wall of the support column by bolts.

[0016] Due to the above structure, the present invention has the following advantages:

[0017] 1. The traveling mechanism of this device includes a linear traveling unit and a steering mechanism. The linear traveling unit enables the trolley to travel in a straight line, and the steering mechanism can drive the linear traveling unit to rotate around the vertical rotation axis, so that the trolley can move as a whole. This design breaks through the limitation of traditional trolleys that can only travel in a straight line, greatly enhances the trolley's ability to adjust its position in complex tunnel construction environments, improves its practicality, and can better meet the needs of different construction scenarios.

[0018] 2. The steering mechanism of this device adopts a worm gear transmission mechanism, which consists of a transmission worm wheel and a transmission worm. It has a compact structure, a large transmission ratio, and can achieve precise steering control. It also has a self-locking function to ensure the stability of the position after steering. The drive component, through the cooperation of the second drive motor, gearbox and output gear, can accurately control the speed and torque of the load-bearing wheel to ensure the smooth straight-line movement of the trolley.

[0019] 3. The beam frame of this device is equipped with multiple telescopic support columns, which are telescopically extended by hydraulic cylinders. The height of the beam frame can be flexibly adjusted to adapt to different tunnel heights and construction requirements, further improving the versatility of the trolley.

[0020] 4. The mounting frame of this device is detachably connected to the support column via a fixed lug plate, which facilitates installation, disassembly and maintenance. The mounting shell is detachably connected to the mounting frame via a fixed lug block, which protects the internal transmission mechanism and facilitates maintenance. The limit ring and ball bearing design on the transmission shaft limits the axial displacement of the transmission shaft while ensuring its smooth rotation and enhancing the overall structural stability.

[0021] 5. The protective shell on the outer side wall of the mounting arm of this device seals and encloses the drive assembly and mounting cavity, protecting the meshing of the output gear and transmission gear from the influence of the external environment and extending the service life of the equipment; the heat dissipation mechanism on the protective shell, including heat dissipation plate and heat dissipation groove, can effectively remove the heat generated by the second drive motor, ensuring stable motor performance; the filter screen in the heat dissipation port can filter dust and prevent too much dust from entering the protective shell and affecting the operation of the equipment.

[0022] In summary, this device, through the cooperation of the linear travel unit and the steering mechanism, enables the trolley not only to move in a straight line but also to achieve overall translation, greatly improving the adaptability of the automatic waterproofing membrane laying trolley in complex construction environments, significantly enhancing its practicality, effectively solving the problem of the single movement mode of traditional trolleys, and bringing greater flexibility and convenience to the construction of tunnel secondary lining waterproofing layers. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a perspective view of one side of the walking mechanism of the present invention.

[0025] Figure 3 This is a perspective view of the other side of the walking mechanism of the present invention.

[0026] Figure 4 This is a schematic diagram of the linear walking unit of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of the walking mechanism of the present invention after the protective shell is installed.

[0028] Figure 6 This is a schematic diagram of the structure of the walking mechanism of the present invention after the heat dissipation mechanism is installed.

[0029] In the attached diagram, 101 is the beam frame; 102 is the hydraulic lifting mechanism; 103 is the working platform; 104 is the mounting frame; 105 is the first drive motor; 106 is the transmission worm gear; 107 is the mounting shell; 108 is the drive shaft; 109 is the transmission worm wheel; 110 is the mounting arm; 111 is the drive shaft; 112 is the load-bearing wheel; 113 is the second drive motor; 114 is the gearbox; 115 is the output gear; 116 is the support column; 117 is the hydraulic cylinder; 118 is the mounting cavity; 119 is the transmission gear; 120 is the fixed lug plate; 121 is the fixed lug block; 122 is the limit ring; 123 is the ball bearing; 124 is the ball; 201 is the protective shell; 202 is the mounting plate; 301 is the heat sink; 302 is the heat sink groove; and 303 is the filter screen. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0032] like Figures 1 to 4 This invention provides an automatic waterproof membrane laying trolley, including a beam frame 101, a hydraulic lifting mechanism 102, a working platform 103, and a traveling mechanism. The hydraulic lifting mechanism 102 is installed at the top of the beam frame 101, and the working platform 103 is installed on the movable end of the hydraulic lifting mechanism 102. The hydraulic lifting mechanism 102 is used to drive the working platform 103 to move vertically. The bottom of the beam frame 101 is provided with multiple height-extendable support columns 116. The support columns 116 are extended and retracted by hydraulic cylinders 117, which are used to adjust the height of the beam frame 101. The traveling mechanism is installed at the bottom of the support columns 116, and the traveling mechanism drives the beam frame 101 to move. A waterproof membrane laying mechanism is provided on the working platform 103, which is used to complete the laying of the waterproof membrane. The waterproof membrane laying mechanism is prior art and will not be described in detail in this technical solution.

[0033] Furthermore, the walking mechanism includes a mounting frame 104, a linear walking unit, and a steering mechanism. Both the linear walking unit and the steering mechanism are mounted on the mounting frame 104. The steering mechanism is used to drive the linear walking unit to rotate around a vertical rotation axis. The linear walking unit is supported on the bottom of the mounting frame 104, and the mounting frame 104 is mounted on the bottom of the support column 116.

[0034] The linear travel unit includes a mounting arm 110, a drive shaft 111, a bearing wheel 112, and a drive assembly. The steering mechanism includes a first drive motor 105, a transmission shaft 108, and a transmission mechanism. The transmission shaft 108 is rotatably mounted at the center of the base plate of the mounting frame 104. The top end of the transmission shaft 108 extends from the top surface of the mounting frame 104, and the top end of the transmission shaft 108 is connected to the output end of the first drive motor 105 through the transmission mechanism. The bottom end of the transmission shaft 108 extends from the bottom surface of the mounting frame 104, and the bottom end of the transmission shaft 108 is fixedly connected to the mounting arm 110. The drive shaft 111 is rotatably mounted on the mounting arm 110. Bearing wheels 112 are respectively mounted on both ends of the drive shaft 111. The drive shaft 111 is driven to rotate by the drive assembly.

[0035] The transmission mechanism is a worm gear mechanism, which includes a transmission worm wheel 109 and a transmission worm 106. A first drive motor 105 is mounted on the mounting frame 104. The transmission worm 106 is coaxially mounted on the output end of the first drive motor 105. The transmission worm wheel 109 is coaxially mounted on the transmission shaft 108. The transmission worm 106 meshes with the transmission worm wheel 109. A mounting shell 107 is also mounted on the mounting frame 104, which encloses and seals the transmission mechanism.

[0036] Each drive assembly includes a second drive motor 113, a gearbox 114, and an output gear 115. A mounting cavity 118 is provided in the middle of the mounting arm 110. The drive shaft 111 passes through the mounting cavity 118. A transmission gear 119 is coaxially mounted on the drive shaft 111 within the mounting cavity 118. The second drive motor 113 and the gearbox 114 are mounted on the outer wall of the mounting arm 110. The output end of the second drive motor 113 is connected to the input end of the gearbox 114. An output gear 115 is mounted on the output end of the gearbox 114, and the output gear 115 meshes with the transmission gear 119. When the second drive motor 113 is started, the gearbox 114 converts the output speed, driving the output gear 115 to rotate. Since the output gear 115 meshes with the transmission gear 119, it drives the drive shaft 111 to rotate on the mounting arm 110.

[0037] When the entire trolley structure needs to be moved, the drive assembly is activated, and the drive shaft 111 rotates on the mounting arm 110 via the transmission gear 119, thereby driving the bearing wheel 112 to rotate, achieving linear movement of the entire trolley structure. When the entire trolley structure needs to be moved horizontally, the first drive motor 105 is activated, driving the transmission worm gear 106 to rotate. Since the transmission worm gear 106 meshes with the transmission worm wheel 109, it drives the transmission shaft 108 to rotate, causing the bearing wheel 112 on the mounting arm 110 to turn as a whole. Then, the drive mechanism is activated, and the entire trolley structure is moved horizontally via the bearing wheel 112. By adopting the above structure, the trolley structure can achieve overall horizontal movement, making it more practical.

[0038] Furthermore, the top of the mounting frame 104 is provided with two fixed ear plates 120 for connecting to the side of the support column 116. The fixed ear plates 120 are detachably connected to the outer side wall of the support column 116 by bolts. The bottom of the mounting shell 107 is provided with two fixed ear blocks 121 on both sides. The mounting shell 107 is detachably connected to the mounting frame 104 by the fixed ear blocks 121.

[0039] Two limiting rings 122 are fixedly mounted on the drive shaft 108. The two limiting rings 122 are respectively set on the upper and lower sides of the bottom plate of the mounting frame 104. The limiting rings 122 are connected to the mounting frame 104 through ball bearings 123. The limiting rings 122 limit the axial displacement of the drive shaft 108. The ball bearings 123 are provided with balls 124 inside. The setting of the limiting rings 122 makes the structure more stable when the drive shaft 108 rotates on the bottom of the mounting frame 104. The setting of the balls 124 makes the rotation of the drive shaft 108 smoother.

[0040] like Figure 5 As shown, a protective shell 201 is installed on the outer wall of the mounting arm 110. The protective shell 201 seals and encloses the drive assembly and the mounting cavity 118. The protective shell 201 protects the drive assembly and the transmission gear 119, preventing external environmental factors from affecting the meshing of the output gear 115 and the transmission gear 119. Furthermore, the mounting plate 202 is detachably connected to the outer wall of the mounting arm 110.

[0041] like Figure 6As shown, a heat dissipation mechanism is also provided on the outer wall of the protective shell 201. The heat dissipation mechanism includes a heat dissipation plate 301. A heat dissipation port is provided on the protective shell 201 at a position corresponding to the second drive motor 113. The heat dissipation plate 301 is installed in the heat dissipation port. A heat dissipation groove 302 is provided on the heat dissipation plate 301. Through the arrangement of the heat dissipation plate 301 and the heat dissipation groove 302, the air circulation between the inside of the protective shell 201 and the outside air is completed. The heat generated by the second drive motor 113 during operation is carried away by the flowing air.

[0042] A filter screen 303 is also inserted inside the heat dissipation vent and in the gap of the heat dissipation plate 301. The filter screen 303 filters dust in the air and prevents too much dust from entering the interior of the protective shell 201 through the heat dissipation groove 302.

[0043] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic waterproof membrane laying trolley, comprising a beam frame and a traveling mechanism; characterized in that: The bottom of the beam frame is provided with multiple height-retractable support columns. A traveling mechanism is installed at the bottom of the support columns. The traveling mechanism includes a mounting frame, a linear traveling unit, and a steering mechanism. The linear traveling unit and the steering mechanism are both mounted on the mounting frame. The mounting frame is installed at the bottom of the support columns. The linear traveling unit is supported at the bottom of the mounting frame. The steering mechanism is used to drive the linear traveling unit to rotate around a vertical rotation axis. The linear traveling unit is used to drive the beam frame to move.

2. The automatic waterproof membrane laying trolley according to claim 1, characterized in that: The linear travel unit includes a mounting arm, a drive shaft, load-bearing wheels, and a drive assembly. The steering mechanism includes a first drive motor, a transmission shaft, and a transmission mechanism. The transmission shaft is rotatably mounted at the center of the mounting frame base plate. The top end of the transmission shaft extends from the top surface of the mounting frame, and the top end of the transmission shaft is connected to the output end of the first drive motor through the transmission mechanism. The bottom end of the transmission shaft extends from the bottom surface of the mounting frame, and the bottom end of the transmission shaft is fixedly connected to the mounting arm. The drive shaft is rotatably mounted on the mounting arm, and load-bearing wheels are respectively mounted at both ends of the drive shaft. The drive shaft is driven to rotate by the drive assembly.

3. The automatic waterproof membrane laying trolley according to claim 2, characterized in that: The transmission mechanism is a worm gear mechanism, which includes a transmission worm wheel and a transmission worm. A first drive motor is mounted on the mounting frame. The transmission worm is coaxially mounted on the output end of the first drive motor. The transmission worm wheel is coaxially mounted on the transmission shaft. The transmission worm meshes with the transmission worm wheel.

4. The automatic waterproof membrane laying trolley according to claim 3, characterized in that: The mounting frame is also fitted with a mounting shell, which encloses and seals the transmission mechanism.

5. The automatic waterproof membrane laying trolley according to claim 4, characterized in that: The mounting housing has fixing lugs on both sides of its bottom, and the mounting housing is detachably connected to the mounting frame via the fixing lugs.

6. The automatic waterproof membrane laying trolley according to claim 2, characterized in that: Two limiting rings are fixedly mounted on the drive shaft. The two limiting rings are respectively set on the bottom plate of the mounting frame and the upper and lower sides. A ball bearing is coaxially mounted on the side of the limiting ring facing the mounting frame. The limiting ring is connected to the mounting frame through the ball bearing. The limiting ring limits the axial displacement of the drive shaft.

7. The automatic waterproof membrane laying trolley according to claim 2, characterized in that: Each drive assembly includes a second drive motor, a gearbox, and an output gear. A mounting cavity is provided in the middle of the mounting arm, through which the drive shaft passes. A transmission gear is coaxially mounted on the drive shaft inside the mounting cavity. The second drive motor and the gearbox are mounted on the outer side wall of the mounting arm. The output end of the second drive motor is connected to the input end of the gearbox. An output gear is mounted on the output end of the gearbox, and the output gear meshes with the transmission gear.

8. The automatic waterproof membrane laying trolley according to claim 7, characterized in that: A protective shell is installed on the outer wall of the mounting arm, and the protective shell seals and encloses the drive assembly and the mounting cavity.

9. The automatic waterproof membrane laying trolley according to claim 8, characterized in that: A heat dissipation mechanism is also provided on the outer wall of the protective shell. The heat dissipation mechanism includes a heat dissipation plate. A heat dissipation port is opened on the protective shell at a position corresponding to the second drive motor. The heat dissipation plate is installed in the heat dissipation port. A heat dissipation groove is provided on the heat dissipation plate. A filter screen is also inserted in the heat dissipation port and in the gap of the heat dissipation plate.

10. The automatic waterproof membrane laying trolley according to claim 1, characterized in that: The top of the mounting frame is provided with fixing lugs on both sides for connecting to the side of the support column. The fixing lugs are detachably connected to the outer wall of the support column by bolts.

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