Pull rod with guiding and positioning function

Abstract

A kind of pull rod with guiding positioning, including pull rod body, pull rod body is equipped with threaded pin device and counterweight cover, threaded pin device and counterweight cover are located at the two sides of pull rod body respectively, pull rod body is equipped with support rolling wheel, and the top of pull rod body is equipped with upper connecting hole.The upper end of the device is provided with four prismatic boss, which is used in cooperation with the guide hole at the lower end, can be automatically homing adjustment in the X axis, Y axis direction of device, realize the automatic centering adjustment of device in X, Y two degrees of freedom and the lifting head or pull rod of on-site hoisting equipment.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic gates, and specifically relates to a pull rod with guiding and positioning functions. Background Technology

[0002] In the daily operation of hydropower stations, trash racks, maintenance gates, or emergency maintenance gates are generally installed at the inlets of generator units, tailrace outlets, and flood discharge channel inlets. These devices are all operated by lifting and lowering the gates using cranes. The connection between the crane and the gate is achieved through the lifting lugs of the crane head and the gate. For emergency maintenance gates at the inlets of high arch dam flood discharge structures, due to the arc-shaped design of the dam body, the gate slot on the upstream side of the dam cannot be set vertically. It must be set at an angle along the same direction as the upstream structure of the dam to ensure that the entire dam channel is effectively blocked by the maintenance gate. This creates favorable conditions for subsequent maintenance of the dam's flood discharge channel and water storage facilities, ensuring that the dam's flood discharge facilities can be effectively maintained, which is directly related to the safe operation of the hydropower station.

[0003] Currently, gates in inclined gate slots are generally raised and lowered using a tie rod connection method. During the raising and lowering process, the tie rods need to be inserted and removed from their pins. This process requires manual assistance to guide the tie rods for alignment. After the upper and lower tie rods are aligned, the pin insertion operation is then performed. However, with the continuous development of society, more and more equipment is moving towards intelligent operation. The intelligent raising and lowering operation of maintenance gates in hydropower stations is also a development trend. How to achieve rapid alignment and connection of the tie rods is a common problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a tie rod with guiding positioning. The upper end of the device body is provided with a four-sided boss, which is used in conjunction with the guide hole at the lower end. It can automatically return to its original position in the X and Y axis directions of the device, so as to realize the automatic centering adjustment of the device with the hoisting head or tie rod of the on-site lifting equipment in the two degrees of freedom of X and Y.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A guide rod includes a rod body, a pin insertion device and a counterweight sleeve on the rod body, the pin insertion device and the counterweight sleeve being located on both sides of the rod body respectively, a support roller on the rod body, and an upper connection hole on the top of the rod body.

[0007] Preferably, the supporting roller is connected to the pull rod body through a pulley support frame.

[0008] Preferably, there are two pulley support frames and two supporting rollers, with the two pulley support frames located on the same side of the tie rod body.

[0009] Preferably, the tie rod body has a square groove structure and multiple reinforcing partitions are provided on the tie rod body.

[0010] Preferably, the top of the pull rod body is provided with a four-sided protrusion.

[0011] Preferably, the upper part of the pull rod body is provided with a pull rod support, which is located below the upper connection hole.

[0012] Preferably, the bottom of the pull rod body is provided with a lower guide hole.

[0013] Preferably, the lower part of the pull rod body is provided with a lower connecting hole, which is opposite to the through-pin device; the counterweight sleeve is installed on the outside of the lower connecting hole.

[0014] Preferably, the cross-section of the lower part of the tie rod body is larger than that of the upper part, and the middle section adopts a gradual transition structure.

[0015] Preferably, the tie rod body is welded and fixed to the pull pin device via a reinforcing seat.

[0016] The present invention can achieve the following beneficial effects:

[0017] The upper part of this device is equipped with a four-sided boss, which works in conjunction with the guide hole at the lower end. It can automatically return to its original position in the X and Y axes, realizing automatic alignment adjustment between the device and the hoisting head or tie rod of the on-site lifting equipment in the X and Y degrees of freedom. This achieves automatic alignment between the tie rod and the connected object, providing an automatic tie rod alignment solution for the automatic lifting and lowering of maintenance gates. The tie rod device has a simple structure, safe alignment operation, and a high degree of automation, and can adapt to working environments with similar working conditions. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the tie rod connection of this utility model;

[0021] Figure 3 This is a diagram showing the application of the tie rod of this utility model in the field.

[0022] In the diagram: 0. Concrete dam; 01. Gate slot; 02. Surface overflow channel; 03. Deep hole gate pump house; 04. Deep hole flood discharge channel; 1. Lifting equipment; 10. Lifting head; 5. Tie rod; 51. Through-pin device; 5-1. Tie rod support; 5-2. Upper connecting hole; 5-3. Pulley support frame; 5-4. Lower connecting hole; 5-5. Lower guide hole; 52. Support roller; 53. Counterweight sleeve; 6. Gate; 7. Locking beam. Detailed Implementation

[0023] Preferred solutions include Figures 1 to 3 As shown, a guide rod with positioning function includes a rod body 5. The rod body 5 is characterized by having a pin insertion / retraction device 51 and a counterweight sleeve 53 on its sides. The rod body 5 also has supporting rollers 52 and an upper connecting hole 5-2 at its top. The rod body 5, as the core load-bearing component of the entire device, plays a crucial role in connection, guidance, and force transmission. High-strength alloy steel is selected as the material, as it possesses excellent mechanical properties and can withstand significant tensile and compressive forces, ensuring stable operation of the rod under complex working conditions.

[0024] Furthermore, the supporting roller 52 is connected to the tie rod body 5 via a pulley support frame 5-3. The pulley support frame 5-3 is generally connected to the tie rod body 5 by welding, using carbon dioxide gas shielded welding as the welding process.

[0025] Furthermore, there are two pulley support frames 5-3 and two supporting rollers 52, with the two pulley support frames 5-3 located on the same side of the tie rod body 5. This layout allows the tie rod to maintain better stability during movement, and the two supporting rollers 52 can evenly distribute the weight of the tie rod, avoiding tilting or jamming caused by single-point force.

[0026] Furthermore, the tie rod body 5 has a square groove structure with multiple reinforcing baffles. Compared to other shapes, the square groove structure has better bending and torsional resistance and is less prone to deformation under large external forces. The reinforcing baffles are made of the same high-strength alloy steel as the tie rod body 5 and are fixed inside the square groove by welding. The welding spacing is reasonably set according to the length of the tie rod and the stress conditions, generally one reinforcing baffle is welded every 200-300mm, effectively enhancing the overall strength and stability of the tie rod.

[0027] Furthermore, the top of the pull rod body 5 is provided with a four-sided protrusion 5-0. The design of the four-sided protrusion 5-0 is mainly used to cooperate with other equipment to achieve automatic centering function.

[0028] Furthermore, a tie rod support 5-1 is provided on the upper part of the tie rod body 5, and the tie rod support 5-1 is located below the upper connecting hole 5-2. The tie rod support 5-1 mainly serves a reinforcing function.

[0029] Furthermore, the bottom of the pull rod body 5 is provided with a lower guide hole 5-5. The lower guide hole 5-5 works in conjunction with the four-sided protrusion 5-0 on the top to realize the automatic return adjustment of the device in the X and Y axis directions.

[0030] Furthermore, the lower part of the pull rod body 5 is provided with a lower connecting hole 5-4, which is opposite to the pin insertion device 51; the counterweight sleeve 53 is installed on the outside of the lower connecting hole 5-4.

[0031] Furthermore, the lower cross-section of the tie rod body 5 is larger than the upper cross-section, and the middle section adopts a gradual transition structure. The lower part of the tie rod body 5 usually bears greater tensile and compressive forces, and increasing the cross-sectional area can improve its load-bearing capacity. The gradual transition structure in the middle section is to make the stress distribution of the tie rod more uniform when under stress, and to avoid stress concentration caused by abrupt changes in cross-section.

[0032] Furthermore, the tie rod body 5 is welded and fixed to the reinforcing seat and the threaded pin device 51.

[0033] This device can be effectively assembled and connected according to the required quantity on site, thereby raising the gate to the required height. The device mainly consists of a pull rod body 5, a supporting roller 52, a pin insertion / retraction device 51, and a counterweight sleeve 53. The pull rod body 5 is the main functional component of this invention, with a four-sided protrusion 5-0, an upper connecting hole 5-2, a pull rod support 5-1, a pulley support frame 5-3, a lower connecting hole 5-4, and a lower guide hole 5-5 on the upper part. The supporting roller 52 is installed on the pulley support frame 5-3 and can provide sliding support in the inclined gate slot to ensure the safety of the pull rod during extended use. The pin insertion / retraction device 51 is installed on one side of the lower connecting hole 5-4 and is used to connect the pull rod 5 or the gate 6 to realize the safe raising and lowering of the gate 6 in the inclined gate slot. The counterweight sleeve 53 is installed on the other side of the lower connecting hole 5-4 and can balance the weight of the pin insertion / retraction device 51 to ensure the stability of the pull rod's center of gravity during use.

[0034] The embodiments described are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A pull rod with guiding and positioning capabilities, comprising a pull rod body (5), characterized in that: The pull rod body (5) is provided with a pin insertion device (51) and a counterweight sleeve (53). The pin insertion device (51) and the counterweight sleeve (53) are located on both sides of the pull rod body (5). The pull rod body (5) is provided with a support roller (52). The top of the pull rod body (5) is provided with an upper connection hole (5-2).

2. A pull rod with guiding and positioning as described in claim 1, characterized in that: The support roller (52) is connected to the pull rod body (5) through the pulley support frame (5-3).

3. A pull rod with guiding and positioning as described in claim 2, characterized in that: There are two pulley support frames (5-3) and two support rollers (52), and the two pulley support frames (5-3) are located on the same side of the tie rod body (5).

4. A pull rod with guiding and positioning as described in claim 3, characterized in that: The tie rod body (5) has a square groove structure and multiple reinforcing partitions are provided on the tie rod body (5).

5. A pull rod with guiding and positioning as described in claim 1, characterized in that: The top of the pull rod body (5) is provided with a four-sided protrusion (5-0).

6. A pull rod with guiding and positioning as described in claim 1, characterized in that: The upper part of the pull rod body (5) is provided with a pull rod support (5-1), which is located below the upper connecting hole (5-2).

7. A pull rod with guiding and positioning as described in claim 1, characterized in that: The bottom of the pull rod body (5) is provided with a lower inlet hole (5-5).

8. A pull rod with guiding and positioning as described in claim 1, characterized in that: The lower part of the pull rod body (5) is provided with a lower connecting hole (5-4), which is opposite to the pin insertion device (51); the counterweight sleeve (53) is installed on the outside of the lower connecting hole (5-4).

9. A pull rod with guiding and positioning as described in claim 4, characterized in that: The cross-section of the lower part of the tie rod body (5) is larger than that of the upper part, and the middle section adopts a gradual transition structure.

10. A pull rod with guiding and positioning as described in claim 8, characterized in that: The tie rod body (5) is welded and fixed to the reinforcing seat and the through pin device (51).

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