Automatic water adding device for rockfill material for dam surface construction

Abstract

The application relates to the technical field of rockfill material water adding devices, in particular to a rockfill material automatic water adding device for dam surface construction, which comprises columns, butt rods, connecting rods, water adding mechanisms, transmission mechanisms and limiting adjusting mechanisms, a plurality of columns are vertically fixed, butt rods are fixed between two adjacent columns, the butt rods and the columns form a group of support structures, two groups of the support structures are symmetrically arranged, connecting rods are fixed between the columns on the front and back sides of the two groups of support structures, the connecting rods are used for water adding operation on rockfill materials, the water adding mechanisms are integrally arranged on the top of the columns, the transmission mechanisms are arranged on one side of the base, the water adding mechanisms are arranged, water is guided through the guide pipes, water flow is sprayed through the water adding nozzles, water adding operation on rockfill materials in the carriages of the trucks is realized, and when water is added, the transmission mechanisms are arranged, the linkage seats can drive the water adding nozzles to slide on the base, and uniform water adding operation is realized.

Description

Technical Field

[0001] This application relates to the technical field of water supply devices for rockfill, and in particular to an automatic water supply device for rockfill used in dam construction. Background Technology

[0002] In the current dam construction process, adding water to the rockfill is a crucial step that directly affects construction quality and project progress. Traditional water addition methods rely heavily on manual operation, which is not only inefficient but also prone to uneven water distribution, thus affecting construction quality. In recent years, with the development of automation technology, some automated water addition equipment has been introduced to construction sites, improving construction efficiency and precision, but many shortcomings still exist.

[0003] Currently, there are two main types of water supply equipment commonly used for riprap: one is a water supply system based on a vehicle-mounted spraying system, which uses a water pump to deliver water from the tank to the nozzles, and then sprays the water onto the surface of the riprap. The advantage of this equipment is its simple structure and ease of maintenance, but the spraying range is limited and it is difficult to ensure uniform water supply; the other is a water supply system based on pipeline water delivery, which uses pipelines to bring water to the construction site and then sprays it evenly through multiple nozzles. Although this equipment has a wide spraying range, it is complex to install and has high maintenance costs. In addition, neither of these two types of equipment integrates a weighing function, so it is impossible to monitor the amount of water added in real time, resulting in inaccurate water supply.

[0004] In summary, existing rockfill water supply equipment generally suffers from problems such as uneven water supply, low efficiency, and high maintenance costs. Especially in dam construction, the amount of water added to the rockfill needs to be precisely controlled, otherwise it will affect the construction quality and project safety. Therefore, it is particularly important to develop an automatic water supply device for rockfill in dam construction. Summary of the Invention

[0005] In order to solve the problems of uneven water addition, low efficiency, high maintenance costs and inability to accurately control the amount of water added in existing rockfill water addition equipment, this application provides an automatic water addition device for rockfill for dam construction.

[0006] The automatic water supply device for riprap used in dam construction provided in this application adopts the following technical solution:

[0007] An automatic water supply device for riprap used in dam face construction includes:

[0008] The column is vertically fixed in several places, and a connecting rod is fixed between two adjacent columns. The connecting rod and the column are combined to form a set of support structures, and two sets are symmetrically arranged. A connecting rod is fixed between the columns on the front and back sides of the two sets of support structures.

[0009] A water supply mechanism is used to supply water to the rockfill. The entire water supply mechanism is located on the top of the column. The water supply mechanism includes a base, a lead screw, a linkage seat, a water supply nozzle, and a water supply pipe. The base is fixed between two adjacent connecting rods. The lead screw is slidably and rotatably connected to the base. The linkage seat is slidably connected to the base and has a threaded hole through it. The lead screw is threaded into the threaded hole of the linkage seat. The water supply nozzle is connected to one end of the linkage seat. One end of the water supply pipe is connected to the water supply nozzle, and the other end is connected to an external flow guiding device.

[0010] A transmission mechanism for driving the lead screw, and the transmission mechanism is disposed on one side of the base;

[0011] A limit adjustment mechanism is used to limit the lead screw and is located on the other side of the base.

[0012] By adopting the above technical solution, the water-adding mechanism is set up and the water is guided by the guide pipe, and then the water is sprayed out through the water-adding nozzle to realize the water-adding operation of the piled stones in the truck bed. At the same time, the transmission mechanism is set up so that the servo motor drives the active bevel gear to rotate, and then the active bevel gear drives the driven bevel gear to mesh and link together. Through the linkage rod and the passive rod, the passive rod and the lead screw are driven to rotate, so that the linkage seat is threaded on the lead screw, and then the linkage seat can drive the water-adding nozzle to slide on the base to achieve uniform water-adding operation.

[0013] By utilizing the limit adjustment mechanism, when the linkage seat slides to both ends of the base, it can simultaneously drive the lead screw to slide under the action of the reverse force. This allows the passive rod to engage with the linkage rod at another position, enabling the lead screw to rotate in the opposite direction. This allows the linkage seat to slide in the opposite direction on the base. This process repeats, automating the water addition to the rock pile, ensuring uniform water addition, and improving work efficiency.

[0014] Optionally, the transmission mechanism includes a fixed seat, a driven bevel gear, a linkage rod, and a driven rod. The fixed seat is fixed to one side of the base and has an inverted shape. The driven bevel gear is rotatably connected to the inner wall of the fixed seat. The lead screw passes through the fixed seat and the axis of the driven bevel gear and is slidably and rotatably connected to the fixed seat and the driven bevel gear. The linkage rod is coaxially fixed to the driven bevel gear, and the driven rod is coaxially fixed to the lead screw.

[0015] By adopting the above technical solution, the passive rod rotates synchronously with the linkage rod, thereby enabling the lead screw to rotate synchronously with the driven bevel gear.

[0016] Optionally, the driven bevel gear and the linkage rod are symmetrically arranged in two sets within the fixed base. The driven rod is located between two adjacent linkage rods, and tooth groove structures are provided at both ends of the driven rod and at one end of the linkage rod near the driven rod.

[0017] By adopting the above technical solution, the toothed structure meshes with each other, thereby enabling the passive rod to rotate synchronously with the linkage rod.

[0018] Optionally, the transmission mechanism further includes a servo motor and a drive bevel gear. The servo motor is fixed on the side wall of the fixed base and connected to an external electrical control device via a wire. The drive bevel gear is coaxially fixed on the output shaft of the servo motor and meshes with the driven bevel gear.

[0019] By adopting the above technical solution, a servo motor is used to drive the active bevel gear to rotate, and then the active bevel gear drives the driven bevel gear to mesh and move together.

[0020] Optionally, the limiting adjustment mechanism includes a limiting seat, a limiting rod, a limiting groove, a mounting groove, and an abutting rod. The limiting seat is fixed on the base and has a groove. The limiting rod is coaxially fixed to one end of the lead screw and slides and rotates to engage with the groove of the limiting seat. The limiting groove is located on the outer wall of the limiting rod. The mounting groove is located on the top of the limiting seat. The abutting rod is slidably engaged with the mounting groove, and one end of the abutting rod slides to abut against the limiting groove.

[0021] By adopting the above technical solution, the abutment rod is connected to the limiting groove, thereby achieving the limiting effect on the limiting rod and simultaneously limiting the position of the lead screw.

[0022] Optionally, the limit adjustment mechanism further includes a chuck and a pressure spring. The chuck is coaxially fixed on the abutment rod, and the pressure spring is sleeved on the abutment rod. One end of the pressure spring abuts against the chuck, and the other end abuts against the inner wall of the mounting groove.

[0023] By adopting the above technical solution, the elastic force of the pressure spring can be used to ensure that one end of the abutment rod is firmly abutted in the limiting groove.

[0024] Optionally, two limiting grooves are arranged side by side on the limiting rod, and an abutment bead is rotatably connected to one end of the abutment rod near the limiting rod.

[0025] By adopting the above technical solution, the wear between the abutment rod and the limit rod is reduced by utilizing the rotation of the abutment ball.

[0026] Optionally, a guide pipe is fixed on the linkage seat, and a thread is provided on the outer wall of the guide pipe. Both the water nozzle and the water pipe are provided with screw holes, and are screwed to the guide pipe through the screw holes.

[0027] By adopting the above technical solution, the water nozzle and water pipe can be quickly disassembled and assembled using the guide pipe.

[0028] Optionally, the bottom of the linkage seat is embedded with a ball bearing, which is arranged in an array of several balls and rolls against the base.

[0029] By adopting the above technical solution, the frictional resistance between the linkage seat and the base is reduced by using ball bearings.

[0030] Optionally, a guide rod is fixed on the base, the guide rod is located on one side of the lead screw, and one end of the linkage seat is slidably connected to the guide rod. Buffer springs are symmetrically arranged at both ends of the guide rod. A weighing platform is provided at the bottom of the rectangular frame formed by the column, the docking rod, and the connecting rod. The weighing platform is connected to external electrical control equipment.

[0031] By adopting the above technical solution, the linkage seat is limited and guided by the guide rod, and the linkage seat is buffered to a certain extent when it moves to both ends of the guide rod by the buffer spring. The weighing platform is used to weigh the piled stone, thereby realizing the precise addition of water.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By utilizing the water-adding mechanism and guiding the water flow through the guide pipe, water is sprayed out through the water-adding nozzle to add water to the piled stones in the truck bed. At the same time, the transmission mechanism enables the servo motor to drive the active bevel gear to rotate, which in turn drives the driven bevel gear to mesh and move together. The linkage rod meshes with the passive rod, which in turn drives the passive rod and the lead screw to rotate. This causes the linkage seat to be threaded on the lead screw, which in turn enables the linkage seat to drive the water-adding nozzle to slide on the base, achieving uniform water addition.

[0034] 2. By utilizing the limit adjustment mechanism, when the linkage seat slides to both ends of the base, it can simultaneously drive the lead screw to slide under the action of the reverse force, thereby enabling the passive rod to engage with the linkage rod at another position, which in turn enables the lead screw to rotate in the opposite direction, allowing the linkage seat to slide in the opposite direction on the base. This process is repeated to automate the water addition to the piled stone, ensuring uniform water addition and improving work efficiency.

[0035] 3. Use a weighing platform to weigh the rockfill, thereby enabling precise addition of water. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the external structure of an automatic water supply device for riprap used in dam construction in this embodiment.

[0037] Figure 2 This is a schematic diagram of the water addition mechanism in this embodiment.

[0038] Figure 3 This is a schematic diagram of the transmission mechanism in this embodiment.

[0039] Figure 4 This is a schematic diagram of the limit adjustment mechanism in this embodiment.

[0040] Figure 5 This is a schematic diagram of the passive rod connection structure in this embodiment.

[0041] Figure 6 This is a schematic diagram of the linkage seat and its overall connection structure in this embodiment.

[0042] Figure 7 This is a schematic diagram of the abutment rod connection structure in this embodiment.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Column; 2. Connecting rod; 3. Connecting rod; 4. Water filling mechanism; 41. Base; 42. Lead screw; 43. Linkage seat; 44. Water filling nozzle; 45. Water filling pipe; 5. Transmission mechanism; 51. Fixed seat; 52. Driven bevel gear; 53. Linkage rod; 54. Passive rod; 55. Servo motor; 56. Driven bevel gear; 6. Limit adjustment mechanism; 61. Limit seat; 62. Limit rod; 63. Limit groove; 64. Mounting groove; 65. Abutment rod; 66. Chuck; 67. Pressure spring; 68. Abutment ball; 7. Guide pipe; 8. Ball bearing; 9. Guide rod; 10. Buffer spring; 11. Weighing platform. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0046] This application discloses an automatic water supply device for riprap used in dam construction.

[0047] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Reference Figure 1 and Figure 2 An automatic water supply device for dam construction rockfill includes a column 1, a connecting rod 2, a connecting rod 3, a water supply mechanism 4, a transmission mechanism 5, and a limit adjustment mechanism 6. Several columns 1 are vertically fixed, and a connecting rod 2 is fixed between two adjacent columns 1. The connecting rod 2 and the column 1 are combined to form a support structure, and two sets are symmetrically arranged. A connecting rod 3 is fixed between the columns 1 on the front and rear sides of the two sets of support structures for water supply to the rockfill. The water supply mechanism 4 is located on the top of the column 1. The transmission mechanism 5 is located on one side of the base 41, and the limit adjustment mechanism 6 for limiting the lead screw 42 is located on the other side of the base 41.

[0049] In this embodiment, the water-adding mechanism 4 includes a base 41, a lead screw 42, a linkage seat 43, a water-adding nozzle 44, and a water-adding pipe 45. The water-adding mechanism 4 is used to guide the flow through the guide pipe 7, and then the water is sprayed out through the water-adding nozzle 44 to add water to the piled stones inside the truck bed. Simultaneously, the transmission mechanism 5 causes the servo motor 55 to drive the active bevel gear 56 to rotate, which in turn drives the driven bevel gear 52 to mesh and engage. The linkage rod 53 meshes with the passive rod 54, causing the passive rod 54 and the lead screw 42 to rotate. This causes the linkage seat 43 to be threaded onto the lead screw 42, allowing the linkage seat 43 to drive the water-adding nozzle 44 to slide on the base 41, achieving uniform water addition.

[0050] Specifically, the base 41 is fixed between two adjacent connecting rods 3, the lead screw 42 is slidably and rotatably connected to the base 41, the linkage seat 43 is slidably connected to the base 41, and a screw hole is provided through the linkage seat 43, and the lead screw 42 is threaded into the screw hole of the linkage seat 43. The water nozzle 44 is connected to one end of the linkage seat 43, one end of the water pipe 45 is connected to the water nozzle 44, and the other end is connected to the external flow guiding device.

[0051] Reference Figure 3Specifically, in this embodiment, the transmission mechanism 5 includes a fixed base 51, a driven bevel gear 52, a linkage rod 53, a passive rod 54, a servo motor 55, and an active bevel gear 56. The transmission mechanism 5 enables the active bevel gear 56 to drive the two driven bevel gears 52 to rotate synchronously in opposite directions, and simultaneously connects with the linkage rods 53 at different positions through the passive rod 54, thereby enabling the lead screw 42 to rotate in both directions, and thus driving the linkage base 43 to slide back and forth on the base 41.

[0052] In this embodiment, the fixed seat 51 is fixed to one side of the base 41 and has a U-shaped structure. The driven bevel gear 52 is rotatably connected to the inner wall of the fixed seat 51. The lead screw 42 passes through the axis of the fixed seat 51 and the driven bevel gear 52 and is slidably and rotatably connected to the fixed seat 51 and the driven bevel gear 52. The linkage rod 53 is coaxially fixed to the driven bevel gear 52, and the passive rod 54 is coaxially fixed to the lead screw 42. The driven bevel gear 52 and the linkage rod 53 are symmetrically arranged in two sets inside the fixed seat 51. The passive rod 54 is located between two adjacent linkage rods 53, and tooth groove structures are provided at both ends of the passive rod 54 and at the end of the linkage rod 53 near the passive rod 54. The servo motor 55 is fixed to the side wall of the fixed seat 51 and is connected to the external electrical control equipment through wires. The driving bevel gear 56 is coaxially fixed to the output shaft of the servo motor 55, and the driving bevel gear 56 meshes with the driven bevel gear 52.

[0053] Reference Figure 4 Specifically, in this embodiment, the limit adjustment mechanism 6 includes a limit seat 61, a limit rod 62, a limit groove 63, a mounting groove 64, and an abutment rod 65. By using the limit adjustment mechanism 6, when the linkage seat 43 slides to both ends of the base 41, it can synchronously drive the lead screw 42 to slide under the action of the reverse force. This allows the passive rod 54 to engage with the linkage rod 53 at another position, thereby allowing the lead screw 42 to rotate in the opposite direction. This allows the linkage seat 43 to slide in the opposite direction on the base 41. This process is repeated to automate the water addition to the piled stone, ensuring uniform water addition and improving work efficiency.

[0054] The limiting seat 61 is fixed on the base 41 and has a slot. The limiting rod 62 is coaxially fixed to one end of the lead screw 42 and slides and rotates to engage in the slot of the limiting seat 61. The limiting groove 63 is set on the outer wall of the limiting rod 62. The mounting groove 64 is set on the top of the limiting seat 61. The abutting rod 65 is slidably engaged in the mounting groove 64 and one end of the abutting rod 65 slides to abut in the limiting groove 63.

[0055] Reference Figure 5 and Figure 6In this embodiment, a guide pipe 7 is fixed on the linkage seat 43, and a thread is provided on the outer wall of the guide pipe 7. Both the water nozzle 44 and the water pipe 45 are provided with screw holes, and both are screwed to the guide pipe 7 through the screw holes. The guide pipe 7 enables the water nozzle 44 and the water pipe 45 to be quickly assembled and disassembled.

[0056] Reference Figure 7 Specifically, regarding the limit adjustment mechanism 6, the limit adjustment mechanism 6 also includes a chuck 66, a pressure spring 67, and an abutment bead 68. The elastic force of the pressure spring 67 is used to ensure that one end of the abutment rod 65 can be firmly abutted in the limit groove 63, and the rotation of the abutment bead 68 is used to reduce the wear between the abutment rod 65 and the limit rod 62.

[0057] The chuck 66 is coaxially fixed on the abutment rod 65, and the pressure spring 67 is sleeved on the abutment rod 65. One end of the pressure spring 67 abuts against the chuck 66, and the other end abuts against the inner wall of the mounting groove 64. Two limiting grooves 63 are arranged side by side on the limiting rod 62, and an abutment bead 68 is rotatably connected to one end of the abutment rod 65 near the limiting rod 62.

[0058] A guide rod 9 is fixed on the base 41. The guide rod 9 is located on one side of the lead screw 42, and one end of the linkage seat 43 is slidably connected to the guide rod 9. Buffer springs 10 are symmetrically arranged at both ends of the guide rod 9. The bottom of the linkage seat 43 is embedded and rotatably connected with balls 8. Several balls 8 are arranged in an array and roll against the base 41. The guide rod 9 is used to limit and guide the linkage seat 43, and the buffer springs 10 can provide a certain degree of buffering when the linkage seat 43 moves to both ends of the guide rod 9. The balls 8 are used to reduce the frictional resistance between the linkage seat 43 and the base 41.

[0059] The bottom of the rectangular frame, which is composed of column 1, connecting rod 2 and connecting rod 3, is equipped with a weighing platform 11. The weighing platform 11 is connected to external electrical control equipment. The weighing platform 11 is used to weigh the piled stone, thereby realizing the precise addition of water.

[0060] The implementation principle of the automatic water supply device for rockfill material used in dam construction according to this application embodiment is as follows: First, the truck used to load the rockfill material is moved to the weighing platform 11. Then, the water is guided through the guide pipe 7, and then sprayed out through the water supply nozzle 44 for water supply. During water supply, the servo motor 55 drives the active bevel gear 56 to rotate, which in turn drives the driven bevel gear 52 to mesh and move together. The driven bevel gear 56 meshes with the driven rod 54 through the linkage rod 53, thereby driving the driven rod 54 and the lead screw 42 to rotate, so that the linkage seat 43 is threadedly linked on the lead screw 42, thereby making the linkage... The moving seat 43 can drive the water spray nozzle 44 to slide on the base 41. When the linkage seat 43 slides to both ends of the base 41, under the action of the reverse force, it synchronously drives the lead screw 42 to slide as a whole, so that the passive rod 54 can engage with the linkage rod 53 at another position, thereby causing the lead screw 42 to rotate in the opposite direction, causing the linkage seat 43 to slide in the opposite direction on the base 41. This process is repeated to realize the automation of water addition to the rock pile, ensure uniform water addition, improve work efficiency, and use the weighing platform 11 to weigh the rock pile, thereby achieving precise addition of water.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rockfill material automatic water adding device for dam surface construction, characterized in that, Include: The column (1) is vertically fixed, and the butt joint rod (2) is fixed between the front and rear two adjacent columns (1), the butt joint rod (2) and the column (1) form a group of support structure, and two groups are symmetrically arranged, and the connecting rod (3) is fixed between the front and rear columns (1) of the two groups of support structure; Water adding mechanism (4) is used for water adding operation of rockfill material, and the water adding mechanism (4) is located at the top of the column (1), the water adding mechanism (4) includes base (41), screw rod (42), linkage seat (43), water adding nozzle (44) and water adding pipe (45), the base (41) is fixed between the adjacent two connecting rods (3), the screw rod (42) is slidably and rotatably connected to the base (41), the linkage seat (43) is slidably connected to the base (41), and the screw hole is provided through the linkage seat (43), and the screw rod (42) is threadedly connected in the screw hole of the linkage seat (43), the water adding nozzle (44) is connected to one end of the linkage seat (43), one end of the water adding pipe (45) is connected with the water adding nozzle (44), and the other end is connected with external flow guide equipment; Transmission mechanism (5) is used for driving the screw rod (42), and the transmission mechanism (5) is arranged on one side of the base (41); Limiting adjustment mechanism (6) is used for limiting the screw rod (42), and is arranged on the other side of the base (41); The transmission mechanism (5) includes fixed seat (51), driven bevel gear (52), linkage rod (53) and passive rod (54), the fixed seat (51) is fixed on one side of the base (41) and is in the shape of a Chinese character, the driven bevel gear (52) is rotatably connected to the inner wall of the fixed seat (51), the screw rod (42) passes through the fixed seat (51) and the driven bevel gear (52) shaft, and is slidably and rotatably connected with the fixed seat (51) and the driven bevel gear (52), the linkage rod (53) is coaxially fixed on the driven bevel gear (52), and the passive rod (54) is coaxially fixed on the screw rod (42); The driven bevel gear (52) and the linkage rod (53) are symmetrically arranged in two groups in the fixed seat (51), the passive rod (54) is located between the adjacent two linkage rods (53), and the tooth groove structure is arranged on the both ends of the passive rod (54) and the end of the linkage rod (53) close to the passive rod (54). The limiting adjusting mechanism (6) comprises a limiting seat (61), a limiting rod (62), a limiting groove (63), a mounting groove (64) and an abutting rod (65), the limiting seat (61) is fixed on the base (41), and a slot is arranged on the limiting seat (61), the limiting rod (62) is coaxially fixed on one end of the lead screw (42), and the limiting rod (62) is slidingly and rotatably connected in the slot of the limiting seat (61), the limiting groove (63) is arranged on the outer wall of the limiting rod (62), the mounting groove (64) is arranged on the top of the limiting seat (61), the abutting rod (65) is slidingly connected in the mounting groove (64), and one end of the abutting rod (65) is slidingly abutted in the limiting groove (63). The limiting adjusting mechanism (6) further comprises a chuck (66) and a pressurizing spring (67), the chuck (66) is coaxially fixed on the abutting rod (65), the pressurizing spring (67) is sleeved on the abutting rod (65), one end of the pressurizing spring (67) is abutted with the chuck (66), and the other end is abutted with the inner wall of the mounting groove (64). The bottom of the rectangular frame composed of the stand column (1), the butt joint rod (2) and the connecting rod (3) is provided with a weighing platform (11), and the weighing platform (11) is connected with an external electric control device.

2. The automatic water adding device for rockfill material for dam surface construction according to claim 1, characterized in that, The transmission mechanism (5) further comprises a servo motor (55) and a driving bevel gear (56), the servo motor (55) is fixed on the side wall of the fixed seat (51) and connected with an external electric control device through wires, and the driving bevel gear (56) is coaxially fixed on the output shaft of the servo motor (55) and engaged with the driven bevel gear (52).

3. The automatic water adding device for rockfill material for dam surface construction according to claim 1, characterized in that, The limiting groove (63) is arranged in parallel on the limiting rod (62) in two, and the abutting rod (65) is rotatably connected with an abutting bead (68) at one end close to the limiting rod (62).

4. The automatic water adding device for rockfill material for dam surface construction according to claim 1, characterized in that, The linkage seat (43) is fixed with a flow guide pipe (7), and a thread is arranged on the outer wall of the flow guide pipe (7), the water adding nozzle (44) and the water adding pipe (45) are both provided with screw holes and are both connected with the flow guide pipe (7) through the screw holes.

5. The automatic water adding device for rockfill material for dam surface construction according to claim 1, characterized in that, The bottom of the linkage seat (43) is rotatably connected with a plurality of balls (8) in an embedded manner, and the balls (8) are arranged in an array and are in rolling abutment with the base (41).

6. The automatic water adding device for rockfill material for dam surface construction according to claim 1, characterized in that, The base (41) is fixed with a guide rod (9), the guide rod (9) is located on one side of the lead screw (42), one end of the linkage seat (43) is slidingly connected with the guide rod (9), and buffer springs (10) are symmetrically arranged at both ends of the guide rod (9).

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