CN103643659A - Gear transmission starting-stopping system of balance gate - Google Patents

Abstract

The invention provides a gear transmission opening and closing system for a balanced gate, which includes a water retaining gate, a power device and a gate pier with a central hole, and is characterized in that it is also equipped with a balance arm, a balance weight, a transmission shaft and a gear train; The two ends of the balance arm are respectively connected with the water retaining gate and the balance weight; the transmission shaft is placed in the center hole of the gate pier, and one end of the transmission shaft passes through the center hole of the gate pier and is connected to the middle of the balance arm , the other end of the drive shaft is splined to the power unit through a gear train. The invention has a novel structure and a large opening and closing range, can realize full opening and closing of 360°, reduces the opening and closing force of the gate, and the power of the used power device is obviously reduced.

Description

Balance gate gear transmission opening and closing system

technical field

The invention relates to the gate opening and closing technology of a water conservancy project, in particular to a gear transmission opening and closing system for a balanced gate.

Background technique

In the water storage and discharge process of water conservancy projects, steel gates are important equipment to ensure the normal and safe operation of the entire project. In the opening and closing equipment of the steel gate, according to the characteristics of hydraulic engineering, the traditional hoisting system with the force of the steel wire rope and the hydraulic system with the force of the piston rod are mostly used. The characteristic of the above-mentioned opening and closing equipment is that the opening and closing force must overcome the frictional resistance brought by the self-weight of the steel gate and the water pressure.

Contents of the invention

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a balanced gate gear transmission opening and closing system which can greatly reduce the opening and closing force of the gate opening and closing machine.

In order to achieve the above object, the gear transmission opening and closing system of the balance gate provided by the present invention includes a water retaining gate, a power device and a gate pier with a central hole, and is characterized in that it is also equipped with a balance arm, a balance weight, a transmission shaft and the gear train; the two ends of the balance arm are respectively connected with the water retaining gate and the balance weight; The middle of the arm is connected, and the other end of the drive shaft is splined to the power unit through a gear train.

As a preferred solution, the water retaining gate is an arc-shaped metal structure that rotates around the transmission shaft.

Further, the balance counterweight is a metal block or a concrete block whose weight can be adjusted.

Furthermore, an annular support bearing is provided in the central hole of the gate pier, and the transmission shaft is connected to the inner wall of the central hole of the gate pier through the support bearing.

Furthermore, the power device is driven by at least one hydraulic motor or at least one geared motor.

Furthermore, the gear train is an internal mesh or an external mesh of a large gear and at least one small gear.

The invention has the advantages of novel structure, large opening and closing range, 360° full opening and closing, reduced gate opening and closing force, and significantly smaller power of the power device used.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Figure 2 is a side view of the present invention installed in a gate slot.

In the figure: 1, water retaining gate, 2, transmission shaft, 3, balance arm, 4, balance counterweight, 5, support bearing, 6, gear train, 7, power unit, 8, gate pier.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The balance gate gear transmission opening and closing system shown in Figures 1 and 2 includes a water retaining gate 1, a power device 7 and a gate pier 8 with a central hole, and is characterized in that it is also equipped with a balance arm 3 and a balance weight 4. The transmission shaft 2 and the gear train 6; the two ends of the balance arm 3 are respectively connected with the water retaining gate 1 and the balance weight 4; the transmission shaft 2 is placed in the center hole of the pier 8, and one end of the transmission shaft 2 passes through The central hole of the gate pier 8 is connected to the middle of the balance arm 3, and the other end of the drive shaft 2 is splined to the power unit 7 through the gear train 6.

The above water retaining gate 1 is an arc-shaped metal structure that rotates around the transmission shaft 2; the balance counterweight 4 is a metal block or concrete block with adjustable weight; an annular support bearing 5 is also arranged in the center hole of the gate pier 8, and the transmission shaft 2 is connected to the inner wall of the center hole of the gate pier 8 through the support bearing 5; the power device 7 is driven by at least one hydraulic motor or at least one reduction motor; the gear train 6 is an internal or external mesh of a large gear and at least one pinion.

The working principle is as follows: the arc-shaped metal structure water retaining gate 1 and the balance counterweight 4 are fixed on the two ends rotating around the transmission shaft 2 through the balance force arm 3, and the weight of the balance counterweight 4 is adjusted so that the torque generated by the water retaining gate 1 is equal to The reaction moment produced by the balance counterweight 4 is equal, and the power unit 7 just overcomes the friction resistance moment formed by the transmission shaft 2 on the gate pier 8 .

The working process is as follows: the self-weight of the curved metal structure water retaining gate 1 is G _Z , the vertical distance from its center of gravity to the rotation center of the transmission shaft 2 is H _Z , the self-weight of the balance weight 4 is W _P , and its center of gravity is to the rotation center of the transmission shaft 2 The vertical distance is -H _P , that is, it forms the opposite direction torque with the metal structure water retaining gate 1, which has a balanced formula: G _Z ×H _Z -W _P ×H _P =0, the frictional resistance formed by the transmission shaft 2 on the gate pier 8 The moment is M _Z , the power generated by the power device 7 is -N _Z , and there is a balanced formula: N _Z -M _Z =0, where G _Z ×H _Z ﹥﹥M _Z , that is, the curved metal structure block The dynamic moment G _Z ×H _Z generated by the sluice gate 1 is far greater than the frictional resistance moment M _Z formed by the transmission shaft 2 on the pier 8, and the dynamic moment required for opening and closing the arc-shaped metal structure sluice gate 1 according to the routine N _c =G _Z ×H _Z +M _Z , after adding -W _P ×H _P , make N _z =G _Z ×H _Z -W _P ×H _P +M _Z , that is, N _c ﹥﹥N _z .

Claims (7)

1. A gear transmission opening and closing system for a balanced gate, including a water retaining gate (1), a power device (7) and a gate pier (8) with a central hole, characterized in that it is also equipped with a balance arm (3) , balance weight (4), transmission shaft (2) and gear train (6); the two ends of the balance arm (3) are respectively connected with the water retaining gate (1) and the balance weight (4); the The drive shaft (2) is placed in the center hole of the gate pier (8), and one end of the drive shaft (2) passes through the center hole of the gate pier (8) to connect with the middle of the balance arm (3), and the drive shaft (2) The other end of the gear train (6) is splined with the power unit (7). 2. The gear transmission opening and closing system of the balance gate according to claim 1, characterized in that: the water retaining gate (1) is an arc-shaped metal structure rotating around the transmission shaft (2). 3. The gear transmission opening and closing system of the balanced gate according to claim 1 or 2, characterized in that: the balance counterweight (4) is an adjustable weight metal block or concrete block. 4. The gear transmission opening and closing system of the balance gate according to claim 3, characterized in that: the balance counterweight (4) is a metal block or a concrete block whose weight can be adjusted. 5. The gear transmission opening and closing system of the balanced gate according to claim 4, characterized in that: the central hole of the gate pier (8) is also provided with an annular support bearing (5), and the transmission shaft (2) It is connected with the inner wall of the central hole of the gate pier (8) through the support bearing (5). 6. The gear transmission opening and closing system of the balance gate according to claim 5, characterized in that: the power device (7) is driven by at least one hydraulic motor or at least one geared motor. 7. The gear drive opening and closing system of the balance gate according to claim 6, characterized in that: the gear train (6) is an internal or external meshing of a large gear and at least one small gear.

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