Manned trolley for pumped storage power station long inclined shaft construction

Abstract

The utility model relates to the field of supporting facilities of pumped storage power stations, and discloses a manned trolley for construction of a long inclined shaft of a pumped storage power station, which walks on an inclined shaft track, a winch is further arranged at the top of the inclined shaft, the manned trolley comprises a base plate and a bottom right-angle tripod, and a lifting plate is further laid on the upper surface of the manned trolley; the fence is arranged on the periphery of the working platform; the area of the internal area of the fence is matched with that of the lifting plate; a driving bevel gear is arranged on an output shaft of the driving motor; the two ends of the double-thread screw are rotationally arranged on the inner wall of the fence, threads at the two ends are opposite, and a driven bevel gear is arranged in the middle; the two sliding blocks are arranged on the front half section and the rear half section of the double-thread screw in a threaded fit mode respectively, connecting rods are hinged to the tops of the sliding blocks, and the top ends of the sliding blocks are hinged to the two fixing blocks respectively. The driving motor is arranged and matched with the double-thread screw, the sliding block and the fixing block, lifting of the lifting plate on the base plate is achieved, and therefore the height difference between the lifting plate and the top of the protective fence is adjusted, and the safety protection requirements of workers of different heights are met.

Description

Technical Field

[0001] The utility model relates to the field of supporting facilities of a pumped storage power station, in particular to a manned trolley for the construction of a long inclined shaft of a pumped storage power station. Background Art

[0002] Pumped-storage hydropower stations, also known as storage hydropower stations, use electricity generated during off-peak periods to pump water to an upper reservoir and release it to a lower reservoir for power generation during peak periods. They can convert excess electricity generated during periods of low grid load into high-value energy during peak periods. They are also suitable for frequency and phase modulation, stabilizing the frequency and voltage of the power system.

[0003] In the construction of pumped-storage power stations, the inclined shaft structure is the key channel connecting the upper reservoir and the lower reservoir. Its design and construction technology directly affect the operating efficiency and safety of the entire power station. In order to meet the needs of operators in the construction of long inclined shafts for expansion drilling and blasting and anchor spraying support, a manned trolley is usually used to travel along the inclined shaft track as an operating platform for expansion drilling and blasting and anchor spraying support. The edge guardrail height of the existing manned trolley for long inclined shaft construction is a fixed height, so it is difficult to meet the safety protection needs of operators of different heights at the same time. In addition, since the working points during the expansion drilling, blasting, anchor spraying and support of long inclined shafts are usually not at the same elevation, additional pads or construction platforms are required, and the use of the trolley is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a manned trolley for the construction of a long inclined shaft of a pumped storage power station, so as to solve the problem that the height of the guardrail of the manned trolley is fixed, which cannot simultaneously meet the protection needs of workers of different heights, and the problem that the existing manned trolley requires additional pads or construction platforms, which is very inconvenient to use.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A manned trolley for construction of a long inclined shaft of a pumped storage power station travels on an inclined shaft track. A winch is provided at the top of the inclined shaft for pulling a construction vehicle for lifting underground. The manned trolley comprises:

[0007] The base plate has a right-angle tripod at the bottom, the oblique side of which matches the slope of the inclined shaft track, and the right-angle tripod has a movable wheel on the oblique side;

[0008] The enclosure is set around the base plate and has a guardrail on the top;

[0009] The driving motor is arranged in the middle of the base plate, and the output shaft is provided with an active bevel gear;

[0010] The double-headed screw has two ends that are rotatably mounted on the inner wall of the enclosure, with the threads of the front and rear halves being in opposite directions, and a driven bevel gear meshing with the driving bevel gear being provided in the middle;

[0011] Two sliding blocks are respectively threadedly arranged on the front and rear halves of the double-headed screw, and the tops of both blocks are hinged with connecting rods;

[0012] A lifting plate is also provided above the base plate, and the edge of the lifting plate is in contact with the inner wall of the guardrail; two fixed blocks are provided on the lower surface of the lifting plate, and the top ends of the two connecting rods are hinged to the two fixed blocks respectively.

[0013] Particularly, the driving motor is a double-headed motor, and the two sides of the driving motor are symmetrically arranged.

[0014] Particularly, an inlet and an outlet are provided on the side surface of the enclosure, a sliding cavity is provided on the end wall of the enclosure at the inlet and the outlet, and the sliding door is slidably arranged in the sliding cavity.

[0015] Furthermore, the top surface of the sliding door is provided with an L-shaped connecting block, and the connecting block is provided with a horizontal locking groove; the end wall of the enclosure on the opposite side of the sliding cavity is provided with an installation cavity for inserting the connecting block, and the installation cavity is provided with a pin hole that matches the position of the horizontal locking groove after the connecting block is inserted, and the locking pin is inserted into the pin hole and passes through the horizontal locking groove to lock the position of the connecting block.

[0016] Furthermore, the top surface of the sliding door is provided with an L-shaped connecting block, and the connecting block is provided with a horizontal locking groove; the end wall of the enclosure on the opposite side of the sliding cavity is provided with an installation cavity for inserting the connecting block, and a horizontal pull rod passing through the side wall of the installation cavity is provided in the installation cavity, and the horizontal pull rod is provided with a pull head at one end outside the installation cavity and a stop block at one end inside the installation cavity, and the stop block is also provided with a locking block matching the horizontal locking groove;

[0017] It also includes a return spring sleeved on the horizontal pull rod, one end of the return spring is fixedly connected to the stopper, and the other end is fixedly connected to the inner wall of the installation cavity.

[0018] Compared with the existing technology, this utility model has the following advantages and beneficial effects: the utility model device is provided with a drive motor, in conjunction with a double-headed screw, a sliding block, and a fixed block, to achieve the lifting and lowering of the lifting plate on the base plate, thereby adjusting the height difference between the lifting plate and the top of the guardrail to adapt to the safety protection needs of workers of different heights. At the same time, the height of the lifting plate can also be adjusted to meet the adaptation of different construction operations to different target elevations, thereby eliminating the need for a pad or an additional working platform, making the manned trolley more user-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the device of the utility model.

[0020] Figure 2 Schematic diagram of the connection between the drive motor and the double-headed screw.

[0021] Figure 3 Schematic diagram of the enclosure structure.

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure 5 It is a schematic diagram of the connection relationship between the horizontal pull rod and the stop block.

[0024] The meanings of the numbers in the figure are as follows: base plate—1; right-angle tripod—2; moving wheel—3; lifting plate—4; enclosure—5; guardrail—6; driving motor—7; active bevel gear—8; double-headed screw—9; driven bevel gear—10; sliding block—11; connecting rod—12; fixing block—13; inlet and outlet—14; sliding chamber—15; sliding door—16; connecting block—17; horizontal locking groove—18; horizontal pull rod—19; pulling head—20; stop block—21; locking block—22; return spring—23. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0026] like Figures 1 to 5 As shown, a manned trolley for construction of a long inclined shaft of a pumped storage power station travels on an inclined shaft track. A winch is also provided at the top of the inclined shaft for pulling a construction vehicle for lifting underground. The manned trolley includes:

[0027] The base plate 1 has a right-angle tripod at the bottom, the oblique side of which matches the slope of the inclined shaft track, and the right-angle tripod 2 has a moving wheel 3 on the oblique side;

[0028] The enclosure 5 is arranged around the base plate 1 and has a guardrail 6 on the top;

[0029] The driving motor 7 is arranged in the middle of the base plate 1, and the output shaft is provided with a driving bevel gear 8;

[0030] The double-headed screw 9 has two ends that are rotatably mounted on the inner wall of the enclosure 5, with the threads of the front and rear halves being in opposite directions, and a driven bevel gear 10 meshing with the driving bevel gear 8 being provided in the middle;

[0031] Two sliding blocks 11 are respectively threadedly arranged on the front and rear halves of the double-headed screw 9, and the tops of both are hinged with connecting rods 12;

[0032] A lifting plate 4 is further provided above the base plate 1 , and the edge of the lifting plate 4 is in contact with the inner wall of the guardrail 6 ; two fixing blocks 13 are provided on the lower surface of the lifting plate 4 , and the top ends of the two connecting rods 12 are hinged to the two fixing blocks 13 respectively.

[0033] The main working principle of this utility model is as follows:

[0034] The base plate 1 serves as the foundation of the manned trolley, providing load-bearing capacity for the upper structure and transferring the load-bearing capacity to the right-angled tripod 2 below. The hypotenuse of the right-angled tripod 2 matches the slope of the inclined shaft track, thereby ensuring the stability of the manned trolley during movement. The enclosure 5 serves as a protective component, surrounding the base plate 1, and a guardrail 6 is set on the top as additional protection. When the operator is of low height, in order to ensure normal operation, the drive motor 7 is started to rotate, and then the active bevel gear 8 is used to drive the driven bevel gear 10 and the double-headed screw 9 to rotate. The two ends of the double-headed screw 9 are rotated and set on the inner wall of the enclosure 5. When the double-headed screw 5 rotates, the two sliding blocks 11 move closer to each other or away from each other. Since the two ends of the connecting rod 12 are respectively hinged to the fixed blocks 13 on the lower surface of the lifting plate 4, when the two sliding blocks 11 move closer to each other, the lifting plate 4 will be lifted upward. When the two sliding blocks 11 move away from each other, the lifting plate 4 will move downward, thereby completing the height adjustment of the lifting plate 4. Since the inner area of ​​the enclosure 5 matches the area of ​​the lifting plate 4, the lifting plate 4 will not tilt or overturn during the lifting process.

[0035] As a preferred embodiment, the driving motor 7 is a double-headed motor, and the two sides of the driving motor 7 are mirror-imaged.

[0036] In this embodiment, by setting the drive motor 7 as a double-headed motor and the two sides of the drive motor 7 are mirror-imaged, the stability of the lifting plate 4 during the lifting process is effectively improved, and the lifting plate 4 can be further prevented from tilting or tipping over.

[0037] As a preferred embodiment, an inlet and outlet 14 is opened on the side of the enclosure 5 , and a sliding cavity 15 is opened on the end wall of the enclosure 5 at the inlet and outlet 14 , and a sliding door 16 is slidably set in the sliding cavity 15 .

[0038] In this embodiment, an entrance and exit 14 is provided on the side of the enclosure 5 for personnel entry and exit. This entrance and exit 14 is sealed by a sliding door 16 disposed within a sliding cavity 15. Specifically, when the sliding door 16 slides into the sliding cavity 15, workers can enter and exit the enclosure 5 of the manned vehicle and carry out normal construction work. When the sliding door 16 slides out of the sliding cavity 15, the entrance and exit 14 is sealed, thereby protecting workers from accidentally falling out of the entrance and exit 14 during construction.

[0039] As a further embodiment, the top surface of the sliding door 16 is provided with an L-shaped connecting block 17, and the connecting block 17 is provided with a horizontal locking groove 18; the end wall of the enclosure 5 on the opposite side of the sliding cavity 15 is provided with an installation cavity for inserting the connecting block 17, and the side wall of the installation cavity is provided with a pin hole that matches the position of the horizontal locking groove 18 after the connecting block 17 is inserted, and the locking pin is inserted into the pin hole and passes through the horizontal locking groove 18 to lock the position of the connecting block 17.

[0040] In this embodiment, a structure for locking the sliding door 16 is provided. Specifically, the connecting block 17 is L-shaped. When the sliding door 16 is pressed against the end wall of the enclosure 5 on the opposite side of the sliding cavity 15, the connecting block 17 is inserted into the installation cavity. The horizontal locking groove 18 provided on the connecting block 16 is also located in the installation cavity. At this time, the locking pin is inserted into the pin hole of the installation cavity and passes through the horizontal locking groove 18 and the pin hole of the opposite side wall of the installation cavity, thereby locking the position of the connecting block 17 and preventing the sliding door 16 from accidentally opening due to movement of the manned platform or other vibrations. In addition, the connecting block 17 can also be used as a hook for the operator safety lock, further ensuring the personal safety of the operator.

[0041] As a further embodiment, the top surface of the sliding door 16 is provided with an L-shaped connecting block 17, and the connecting block 17 is provided with a horizontal locking groove 18; the end wall of the enclosure 5 on the opposite side of the sliding cavity 15 is provided with a mounting cavity for inserting the connecting block 17, and a horizontal pull rod 19 is provided in the mounting cavity and passes through the side wall of the mounting cavity. The horizontal pull rod 19 is provided with a pull head 20 at one end outside the mounting cavity and a stopper 21 at one end inside the mounting cavity, and the stopper 21 is further provided with a locking block 22 that matches the horizontal locking groove 18;

[0042] The utility model further comprises a return spring 23 sleeved on the horizontal pull rod 19 , wherein one end of the return spring 23 is fixedly connected to the stopper 21 , and the other end is fixedly connected to the inner wall of the installation cavity.

[0043] In this embodiment, another structure for locking the sliding door 16 is provided. Specifically, when the sliding door 16 is pressed against the end wall of the enclosure 5 opposite the sliding cavity 15, the connecting block 17 is inserted into the mounting cavity. The horizontal locking groove 18 provided on the connecting block 16 is also located in the mounting cavity. At this time, by pulling the slider 20 of the horizontal pull rod 19, the return spring 23 is compressed, and the block 21 is pulled sideways, thereby clearing the movement path. The connecting block 17 passes the position of the locking block 22 on the block 21, allowing the horizontal locking groove 18 to align with the locking block 22. At this time, the slider 20 is released, and the return spring 23 returns and extends, allowing the locking block 22 to be accurately inserted into the horizontal locking groove 18, thereby locking the sliding door 16. When the sliding door 16 needs to be opened, the slider 20 is pulled again, so that the locking block 22 and the horizontal locking groove 18 are released, and the sliding door 16 can be moved normally. The connecting block 17 in this embodiment can also serve as a hook position for the operator's safety lock, further ensuring the personal safety of the operator.

[0044] The words "connection" and "fixation" appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0045] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manned trolley for construction of a long inclined shaft of a pumped storage power station, which travels on an inclined shaft track and has a winch at the top of the inclined shaft for pulling the construction vehicle underground, characterized in that: The manned trolley comprises: A base plate (1) is provided at the bottom with a right-angle tripod whose oblique side matches the slope of the inclined shaft track, and the right-angle tripod (2) is provided with a moving wheel (3) on the oblique side; A fence (5) is provided around the base plate (1) and has a guardrail (6) on the top; A driving motor (7) is arranged in the middle of the base plate (1), and an active bevel gear (8) is provided on the output shaft; A double-headed screw (9) with both ends rotatably arranged on the inner wall of the enclosure (5), the threads of the front half and the rear half are in opposite directions, and a driven bevel gear (10) is provided in the middle portion to mesh with the driving bevel gear (8); Two sliding blocks (11) are respectively threadedly arranged on the front and rear halves of the double-headed screw (9), and the tops of both are hinged with connecting rods (12); A lifting plate (4) is further provided above the base plate (1), and the edge of the lifting plate (4) is in contact with the inner wall of the guardrail (6); two fixing blocks (13) are provided on the lower surface of the lifting plate (4), and the top ends of the two connecting rods (12) are hinged to the two fixing blocks (13) respectively.

2. A manned trolley for construction of a long inclined shaft of a pumped storage power station as claimed in claim 1, characterized in that: The driving motor (7) is a double-headed motor, with both sides of the driving motor (7) arranged in a mirror image.

3. A manned trolley for construction of a long inclined shaft of a pumped storage power station as claimed in claim 1, characterized in that: An inlet and outlet (14) are formed on the side of the enclosure (5), and a sliding cavity (15) is formed on the end wall of the enclosure (5) at the inlet and outlet (14), and a sliding door (16) is slidably arranged in the sliding cavity (15).

4. A manned trolley for construction of a long inclined shaft of a pumped storage power station as claimed in claim 3, characterized in that: The top surface of the sliding door (16) is provided with an L-shaped connecting block (17), and the connecting block (17) is provided with a horizontal locking groove (18); the end wall of the enclosure (5) on the opposite side of the sliding cavity (15) is provided with an installation cavity for inserting the connecting block (17), and the side wall of the installation cavity is provided with a pin hole that matches the position of the horizontal locking groove (18) after the connecting block (17) is inserted, and the locking pin is inserted into the pin hole and passes through the horizontal locking groove (18) to lock the position of the connecting block (17).

5. A manned trolley for construction of a long inclined shaft of a pumped storage power station as claimed in claim 3, characterized in that: The top surface of the sliding door (16) is provided with an L-shaped connecting block (17), and the connecting block (17) is provided with a horizontal locking groove (18); the end wall of the enclosure (5) on the opposite side of the sliding cavity (15) is provided with an installation cavity for inserting the connecting block (17), and a horizontal pull rod (19) passing through the side wall of the installation cavity is provided in the installation cavity, and the horizontal pull rod (19) is provided with a pull head (20) at one end outside the installation cavity and a stop block (21) at one end inside the installation cavity, and the stop block (21) is also provided with a locking block (22) matching the horizontal locking groove (18); It also includes a return spring (23) sleeved on the horizontal pull rod (19), one end of the return spring (23) is fixedly connected to the stopper (21), and the other end is fixedly connected to the inner wall of the installation cavity.

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