Pit digging equipment for water conservancy project

Abstract

The utility model discloses pit digging equipment for hydraulic engineering, which comprises a pair of brackets, the brackets are Z-shaped structures, a mounting shaft is fixedly connected to the vertical section of each bracket, a pair of connecting plates is rotatably connected to the mounting shaft, the front ends of the connecting plates are connected with digging rollers through rotating shafts, and a conveying mechanism is arranged on the brackets and below the digging rollers. The conveying mechanism comprises a pair of fixed mounting frames fixed to the inner wall of the support, a movable mounting frame is hinged to the front ends of the fixed mounting frames, a crawler belt is assembled through the fixed mounting frames and the movable mounting frame, and abutting rods are fixedly arranged on the two sides of the front end of the connecting plate and hinged to the upper surface of the movable mounting frame. According to the foundation pit digging device, a foundation pit is formed in the ground through friction between the rotating digging roller and the ground, one-time digging forming can be achieved, repeated work is avoided, the digging roller is installed on the rotatable connecting plate, the contact distance and extrusion force between the digging roller and the ground are controlled through rotation of the connecting plate, and therefore the foundation pit digging depth is controlled.

Description

Technical Field

[0001] The utility model belongs to the field of water conservancy projects, in particular to a pit digging device for water conservancy projects. Background Art

[0002] In farmland or urban water conservancy construction, the number of underground pipelines laid has increased sharply. Traditional water supply and drainage pipe trenches rely solely on manual excavation, which is not only inefficient, but also the quality of the excavated trenches is poor and cannot meet the use requirements.

[0003] Chinese patent CN 220225502 U discloses a trenching machine for water supply and drainage pipeline engineering. When the trenching machine is used, the height of the primary excavation mechanism is first adjusted by an electric lifting rod, and the driving motor is started. The driving motor drives the primary rotating shaft through the cooperation of the active sprocket, the double-row sprocket, the driven sprocket and the transmission chain. The primary rotating shaft drives the primary milling and throwing disc to rotate, so that the soil is milled and broken by the primary milling and throwing disc. The broken soil is thrown on both sides of the trench in a parabola due to the inertia of the primary milling and throwing disc, thereby completing the trenching operation of the primary excavation mechanism, which is convenient for the staff to arrange the drainage and water supply pipelines in the trench. When the diameter of the drainage and water supply pipelines is large, the required trenching width increases relatively. At this time, the excavator needs to be adjusted. First, the screw motor is controlled to cooperate with the secondary excavation mechanism through the transmission screw, thereby driving the secondary excavation mechanism to descend, and the secondary excavation mechanism is used for excavation.

[0004] Existing pit digging equipment usually utilizes inertia to throw the excavated soil out of the pit when in use, but this may cause the soil to accumulate in the previously opened pit, causing the excavated pit to be re-buried. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A pit digging equipment for a water conservancy project includes a pair of brackets. The brackets are of a Z-shaped structure. A mounting shaft is fixedly connected to the vertical section of the bracket. A pair of connecting plates are rotatably connected to the mounting shaft. The front end of the connecting plate is connected to a digging roller by a rotating shaft. A transmission mechanism is installed on the bracket and below the digging roller. The transmission mechanism includes a pair of fixed mounting frames fixed to the inner wall of the bracket. A movable mounting frame is hinged at the front end of the fixed mounting frame. A crawler track is assembled using the fixed mounting frame and the movable mounting frame. Resistance rods are fixedly provided on both sides of the front end of the connecting plate. The resistance rods are hinged to the upper surface of the movable mounting frame. When the connecting plate rotates on the mounting shaft, the distance between the digging roller and the ground changes, thereby determining the pit depth. At the same time, during the rotation of the connecting plate, a resistance rod is provided on its side to resist the movable mounting frame to make it rotate at the front end of the fixed mounting frame, so that the distance between the crawler track and the digging roller remains unchanged.

[0008] One end of the rotating shaft connected to the digging roller passes through one of the connecting plates and is fixedly sleeved with a belt pulley. A driver is assembled on the bracket on the same side, and a belt is sleeved between the driver and the belt pulley.

[0009] A fixing plate is horizontally installed outside the vertical section of the bracket, a winch is mounted on the fixing plate, a motor is connected to one side of the winch, a traction rope is wound around the winch, and the end of the traction rope is fixed on the connecting plate.

[0010] A bearing roller is fixedly connected to the front end of the horizontal section on the bracket, a traction roller is fixedly installed between a pair of connecting plates, a traction rope is overlapped with the bearing roller and extends downward and fixed on the traction roller, and a winch is used to reel in the traction rope to control the connecting plate to rotate on the mounting shaft.

[0011] The fixed mounting frame is divided into an inclined section and a horizontal section. When the fixed mounting frame is installed on the bracket, the inclined section extends out of the bracket, and the end of the movable mounting frame hinged to the fixed mounting frame is close to the digging roller.

[0012] The rear end upper surfaces of a pair of fixed mounting frames are rotatably connected to a first set of rollers by connecting plates, and steering rollers are rotatably connected below the first set of rollers. A second set of rollers are rotatably connected between the inclined section and the horizontal section of the fixed mounting frame by connecting plates, and tension rollers are rotatably connected below the second set of rollers. The front end upper surface of the fixed mounting frame is rotatably connected to a third set of rollers by connecting plates, and the front end of the movable mounting frame is rotatably connected to a driving roller. When the track is sleeved on the fixed mounting frame and the movable mounting frame, its lower surface overlaps the upper surfaces of the first set of rollers, the second set of rollers and the third set of rollers, and the steering roller is used to steer the track, and the tension roller is used to tighten the track.

[0013] A slide groove is provided on the outer wall of the fixed mounting frame, and a connecting block is slidably connected in the slide groove. The connecting block is connected to the connecting pieces at both ends of the first set of rollers, and the connecting pieces at both ends of the first set of rollers are slidably connected to the upper surface of the fixed mounting frame, and a cylinder is hinged on the side of the connecting block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The present application utilizes the friction between the rotating excavating roller and the ground to excavate a foundation pit on the ground. Compared with the traditional milling blade excavation, the present application can excavate and shape in one go to avoid repeated work. The excavating roller is installed on a rotatable connecting plate. The contact distance and extrusion force between the excavating roller and the ground are controlled by the rotation of the connecting plate, thereby controlling the depth of the excavated foundation pit. The connecting plate is mainly controlled by a winch to drive the traction rope to control its rotation degree, thereby indirectly realizing the distance control between the excavating roller and the ground. The structure is relatively simple, and considering that the ground will have a rebound force on the excavating roller when the excavating roller is excavating the ground, the traction rope can prevent the overall vibration caused by the rigid connection of the excavating roller. The rotating connecting plate and the traction rope make the excavating roller elastically connected, thereby reducing vibration.

[0016] (2) At the same time, the present application provides a conveying mechanism at the rear lower part of the digging roller. When the digging roller rubs against the ground, the soil is thrown backwards. The thrown soil falls on the conveying mechanism and is transported backwards through the crawler of the conveying mechanism. At this time, a plate inclined to both sides can be provided at the end of the conveying mechanism to throw the soil excavated by the digging roller to both sides of the foundation pit. The conveying mechanism can prevent the soil from falling back into the foundation pit when it is thrown backwards, causing the foundation pit to be buried. At the same time, the conveying mechanism can control the falling position of the soil, thereby evenly controlling the soil discharge.

[0017] (3) Furthermore, since the digging roller can be adjusted, the conveying mechanism also needs to be able to change its angle as the digging roller rotates in order to better receive the soil. Therefore, the conveying mechanism in the present application is composed of a fixed mounting frame and a movable mounting frame. The movable mounting frame can rotate at the front end of the fixed mounting frame, and its rotation is mainly achieved by pushing and pulling the resistance rod provided on the side of the connecting plate connected to the digging roller. When the connecting plate rotates to control the excavation depth of the digging roller, the resistance rod on its side can push and pull the movable mounting plate to rotate on the fixed mounting frame, so that the distance between the front end of the crawler on the conveying mechanism and the digging roller is always kept consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Three-dimensional structure for digging equipment Figure 1 .

[0019] Figure 2 Three-dimensional structure for digging equipment Figure 2 .

[0020] Figure 3 This is a three-dimensional structural diagram of the excavation mechanism.

[0021] Figure 4 It is the overall structure of the soil transfer mechanism and its partial enlarged diagram.

[0022] Figure 5 The following is a diagram of the internal structure of the mounting frame.

[0023] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0024] 100, bracket; 101, mounting shaft; 101a, connecting plate; 101b, digging roller; 101c, traction roller; 101d, resistance rod; 102, drive; 102a, belt; 103, bearing roller; 104, fixed plate; 104a, motor; 104b, winch; 104b-1, traction rope; 200, transmission mechanism; 201, fixed mounting frame; 201a, slide; 201a-1, connecting block; 201a-2, cylinder; 201b, first set of rollers; 201c, steering roller; 201d, second set of rollers; 201e, tension roller; 201f, third set of rollers; 202, movable mounting frame; 202a, drive roller; 203, crawler track. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0028] Reference 3 is a diagram showing the overall structure of the pit digging equipment for water conservancy projects in this embodiment. The pit digging equipment in this embodiment includes a pair of brackets 100. The brackets 100 are of a Z-shaped structure so that the brackets 100 are divided into an upper horizontal section, a vertical section, and a lower horizontal section, which facilitates the three-dimensional installation of other components in the pit digging equipment and reduces the footprint of the equipment. A mounting shaft 101 is fixedly connected to the vertical section of the bracket 100. A pair of connecting plates 101a are rotatably connected to the mounting shaft 101. The front end of the connecting plate 101a is connected to a digging roller 101b by a rotating shaft. One end of the rotating shaft connecting the digging roller 101b passes through One of the connecting plates 101a is fixedly sleeved with a pulley, and a driver 102 is installed on the bracket 100 on the same side. A belt 102a is sleeved between the driver 102 and the pulley. In this embodiment, the driver 102 drives the pulley to rotate through the belt 102a, and the pulley is fixedly connected to the rotating shaft, so that the digging roller 101b connected to the rotating shaft rotates. When the digging roller 101b rotates, it rolls and rubs against the ground, thereby spinning the soil to form a foundation pit. When the connecting plate 101a rotates on the mounting shaft 101, the distance between the digging roller 101b and the ground changes, thereby determining the depth of the pit.

[0029] See also Figure 1 and Figure 2 1 is an overall structural diagram of the pit digging equipment in this embodiment. In order to adjust the angle of the digging roller 101b so as to control the distance between the digging roller 101b and the ground, a fixed plate 104 is horizontally installed on the outer side of the vertical section of the bracket 100 in this embodiment. A winch 104b is installed on the fixed plate 104. A motor 104a is connected to one side of the winch 104b, and a traction rope 104b-1 is wound around the winch 104b. The end of the traction rope 104b-1 is fixed to the connecting plate 101a. A bearing roller 103 is fixedly connected to the front end of the horizontal section of the bracket 100. A traction roller 101c is fixedly installed between a pair of connecting plates 101a. The traction rope 104b-1 is overlapped with the bearing roller 103 and then extends downward and is fixed on the traction roller 101c. The winch 104b is driven to rotate by the motor 104a, and the winch 104b is used to reel in the traction rope 104b-1 to control the connecting plate 101a to rotate on the mounting shaft 101.

[0030] See also Figure 4Schematic diagram of the soil conveying structure in this embodiment. In this embodiment, a conveying mechanism 200 is installed on the bracket 100 and below the digging roller 101b. The conveying mechanism 200 is provided with a crawler 203. When the digging roller 101b rotates, the soil is thrown backwards, and the thrown soil falls on the crawler 203 of the conveying mechanism 200. The crawler 203 is used to drive the soil to be conveyed backwards. At this time, a plate inclined to both sides can be set at the end of the conveying mechanism to throw the soil excavated by the digging roller to both sides of the foundation pit. The conveying mechanism can prevent the soil from falling back into the foundation pit when it is thrown backwards. Furthermore, since the digging roller 101b can be regulated, the conveying mechanism 200 also needs to be able to change its angle with the rotation of the digging roller 101b in order to better receive the soil. Therefore, in this embodiment, a resisting rod 101 is fixedly provided on both sides of the front end of the connecting plate 101a. d. The resistance rod 101d is hinged to the upper surface of the movable mounting frame 202. Therefore, the conveying mechanism in the present application is composed of a pair of fixed mounting frames 201 and a movable mounting frame 202. The fixed mounting frame 201 is installed in a pair of brackets 100. The movable mounting frame 202 can rotate at the front end of the fixed mounting frame 201. The track 203 is assembled on the fixed mounting frame 201 and the movable mounting frame 202. Its rotation is mainly completed by pushing and pulling the resistance rod 101d set on the side of the connecting plate 101a connected to the digging roller 101b. When the connecting plate 101a rotates to control the excavation depth of the digging roller 101b, the resistance rod 101d on its side can push and pull the movable mounting plate 202 to rotate on the fixed mounting frame 201, so that the distance between the front end of the track 203 on the conveying mechanism 200 and the digging roller 101b is always consistent.

[0031] See also Figure 4 and Figure 5The fixed mounting frame 201 is divided into an inclined section and a horizontal section. When the fixed mounting frame 201 is installed on the bracket 100, the inclined section extends out of the bracket 100 and the end of the movable mounting frame 202 hinged to the fixed mounting frame 201 is close to the digging roller 101b for receiving the soil thrown by the digging roller 101b. The fixed mounting frame 201 is divided into an inclined section and a horizontal section in that the inclined section is convenient for approaching the digging roller 101b, while the horizontal section is convenient for smoothly transporting the soil. The upper surface of the rear end of a pair of fixed mounting frames 201 is rotatably connected to the first set of rollers 201b by a connecting piece, and the lower part of the first set of rollers 201b is rotatably connected to a steering roller 201c. The fixed mounting frame 201 A second set of rollers 201d is rotatably connected between the upper inclined section and the horizontal section by a connecting plate, and a tensioning roller 201e is rotatably connected below the second set of rollers 201d. A third set of rollers 201f is rotatably connected to the upper surface of the front end of the fixed mounting frame 201 by a connecting plate, and a driving roller 202a is rotatably connected to the front end of the movable mounting frame 202. When the track 203 is sleeved on the fixed mounting frame 201 and the movable mounting frame 202, its lower surface overlaps the upper surfaces of the first set of rollers 201b, the second set of rollers 201d and the third set of rollers 201f, and the track 203 is turned by the steering roller 201c, and the track 203 is tightened by the tensioning roller 201e.

[0032] Furthermore, when the contact rod 101d pushes and pulls the movable mounting frame 202, the crawler 203 will become loose. In order to ensure that the crawler 203 maintains a stable movement, the driving roller 202a can drive the crawler 203 to operate when it rotates. Therefore, the tightness of the crawler 203 needs to be controlled. When the contact rod 101d pulls the movable mounting frame 202 to make it tend to be horizontal with the fixed mounting frame 201, the crawler 203 will become loose, and when the contact rod 101d pushes the movable mounting frame 202 to make it tend to be vertical with the fixed mounting frame 201, the crawler 203 will become tight. Therefore, this embodiment needs to design a device that can adjust the crawler 203. The mechanism of belt 203 is provided, so in this embodiment, a slide groove 201a is opened on the outer wall of the fixed mounting frame 201, and a connecting block 201a-1 is slidably connected in the slide groove 201a, and the connecting block 201a-1 is connected to the connecting pieces at both ends of the first set of rollers 201b, and the connecting pieces at both ends of the first set of rollers 201b are slidably connected to the upper surface of the fixed mounting frame 201, and a cylinder 201a-2 is hinged on the side of the connecting block 201a-1, and the cylinder 201a-2 is used to push and pull the connecting block 201a-1, and the connecting piece at both ends of the first set of rollers 201b is further controlled by the connecting block 201a-1 to move back and forth, thereby controlling the tightness of the crawler track 203.

[0033] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A pit digging device for a water conservancy project, comprising a pair of brackets (100), the brackets (100) being of a Z-shaped structure, a mounting shaft (101) being fixedly connected to a vertical section of the brackets (100), a pair of connecting plates (101a) being rotatably connected to the mounting shaft (101), a front end of the connecting plate (101a) being connected to a digging roller (101b) by a rotating shaft, a transmission mechanism (200) being installed on the brackets (100) and below the digging roller (101b), Features: The conveying mechanism (200) comprises a pair of fixed mounting frames (201) fixed on the inner wall of the bracket (100); the front end of the fixed mounting frame (201) is hingedly connected to a movable mounting frame (202); a crawler (203) is assembled using the fixed mounting frame (201) and the movable mounting frame (202); and a resistance rod (101d) is fixedly arranged on both sides of the front end of the connecting plate (101a); the resistance rod (101d) is hingedly connected to the upper surface of the movable mounting frame (202).

2. The pit digging equipment for water conservancy projects according to claim 1, characterized in that: One end of the rotating shaft connected to the digging roller (101b) passes through one of the connecting plates (101a) and is fixedly sleeved with a belt pulley. A driver (102) is mounted on the bracket (100) on the same side, and a belt (102a) is sleeved between the driver (102) and the belt pulley.

3. The pit digging equipment for water conservancy projects according to claim 2, characterized in that: A fixing plate (104) is horizontally installed on the outer side of the vertical section of the bracket (100), a winch (104b) is mounted on the fixing plate (104), a motor (104a) is connected to one side of the winch (104b), a traction rope (104b-1) is wound around the winch (104b), and an end of the traction rope (104b-1) is fixed to the connecting plate (101a).

4. The pit digging equipment for water conservancy projects according to claim 2, characterized in that: A bearing roller (103) is fixedly connected to the front end of the upper horizontal section of the bracket (100); a traction roller (101c) is fixedly installed between a pair of connecting plates (101a); a traction rope (104b-1) is overlapped with the bearing roller (103) and then extends downward and is fixed on the traction roller (101c); a winch (104b) is used to reel in the traction rope (104b-1) to control the connecting plate (101a) to rotate on the mounting shaft (101).

5. The pit digging equipment for water conservancy projects according to claim 1, characterized in that: The fixed mounting frame (201) is divided into an inclined section and a horizontal section. When the fixed mounting frame (201) is mounted on the bracket (100), the inclined section extends out of the bracket (100), and the end of the movable mounting frame (202) hinged to the fixed mounting frame (201) is close to the digging roller (101b).

6. The pit digging equipment for water conservancy projects according to claim 5, characterized in that: A first set of rollers (201b) are rotatably connected to the upper surface of the rear end of a pair of fixed mounting frames (201) by means of a connecting piece, a steering roller (201c) is rotatably connected below the first set of rollers (201b), a second set of rollers (201d) is rotatably connected between the inclined section and the horizontal section of the fixed mounting frame (201) by means of a connecting piece, and a tension roller (201e) is rotatably connected below the second set of rollers (201d), and a first set of rollers (201b) is rotatably connected to the upper surface of the front end of the fixed mounting frame (201) by means of a connecting piece. The third set of rollers (201f), the front end of the movable mounting frame (202) is rotatably connected to a driving roller (202a), and when the crawler (203) is sleeved on the fixed mounting frame (201) and the movable mounting frame (202), its lower surface overlaps the upper surfaces of the first set of rollers (201b), the second set of rollers (201d) and the third set of rollers (201f), and the crawler (203) is turned by using a steering roller (201c), and the crawler (203) is tightened by using a tensioning roller (201e).

7. The pit digging equipment for water conservancy projects according to claim 6, characterized in that: A sliding groove (201a) is provided on the outer wall of the fixed mounting frame (201), a connecting block (201a-1) is slidably connected in the sliding groove (201a), the connecting block (201a-1) is connected to connecting pieces at both ends of the first set of rollers (201b), and the connecting pieces at both ends of the first set of rollers (201b) are slidably connected to the upper surface of the fixed mounting frame (201), and a cylinder (201a-2) is hinged on the side of the connecting block (201a-1).

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