CN201235398Y - Tank tilting arrangement of torpedo car - Google Patents

Abstract

The utility model discloses a tilting device for a tank body of a torpedo vehicle, which comprises a variable speed prime mover, a primary speed reducer, a final speed reducer, a crank, a tension and pressure rod, a torsion rod, a travel switch, a support sleeve, etc., and is characterized in that : The output shaft of the variable speed prime mover is fixedly connected with the input shaft of the primary reducer, and the primary reducer is a two-stage three-ring reducer or a combined reducer with a three-ring low-speed stage below the third stage; the output shafts of the two primary reducers are respectively It is set on the input shaft of the final reducer, and the boxes are fixedly connected by flanges; the final reducer adopts a two-point meshing cylindrical gear reducer, and the final reducer is suspended and installed on the trunnion of the torpedo tank body. The expansion sleeve transmits the torque to the trunnion; the final reducer is connected with the flexible support member, and the flexible support member is connected with the platform to form a full-suspension flexible transmission device. A safety device is installed on the flexible support member to prevent the torsion bar from being plastically deformed or twisted. This solution has compact structure, high efficiency and reliability, and stable operation.

Description

Tilting device for torpedo tank

Technical field:

The utility model relates to the technical field of mechanical transmission, in particular to the technical field of tilting transmission for torpedo-type mixed-iron vehicles.

Background technique:

In the large-scale torpedo-type mixed-iron wagon manufactured in the prior art, the reduction device of its tank tipping transmission system is generally based on the tilting device of the worm gear reducer and the tilting device of the gear reducer. Although the tilting device of the worm gear reducer adopts the plane secondary envelope technology, the tilting device of the worm gear reducer with two-stage deceleration cannot meet the speed regulation range, and the low-speed function is lacking. Two sets of transmission devices are required for high and low speeds, and the plane two The efficiency of sub-enveloping worm reducers is still low. At present, the mainstream tilting device is the gear reducer tilting device. The tilting device of the five-stage planetary reducer with hard tooth surface is adopted. The reducer mechanism is complicated, the cost is too high, the overload capacity is low, and the reliability is poor. The low-speed function is lacking, and two sets of transmission devices are required for high and low speeds.

The development and maturity of the theory of involute less-tooth-difference transmission has opened up a new world for the technical field of torpedo tank tipping transmission, especially the application of the principle of parallel crank mechanism to realize the three-ring deceleration of involute less-tooth-difference transmission The emergence of the involute less tooth difference structure has played a revolutionary role in the popularization and application of the torpedo tank tipping transmission technology. At present, domestic 2000-2500m ³ blast furnace casting yards are all equipped with mixed iron cars, and large torpedo type mixed iron cars, especially 320 tons, 400 tons, and 600 tons, are the future development direction. The torpedo tank tilting device must be able to provide large torque and high speed ratio, and the working conditions are often harsh, which puts forward higher requirements on the performance of the torpedo tank tilting device. The tilting device of the torpedo tank needs to have sufficient output capacity, reliable operation, and durability to ensure continuous production. The devices in each link are required to be simple in structure and easy to maintain.

The three-ring reducer has the characteristics of strong bearing capacity, large anti-overload capacity, high reliability of continuous production, large transmission ratio, high efficiency, long service life, convenient maintenance, and high cost performance. It has been widely used in metallurgy, mining, lifting transportation, construction, etc. , petrochemical, textile printing and dyeing industries. Especially at the same cost, its reliability is increased by an order of magnitude, which greatly improves the operation rate of continuous production. It is of great significance from the perspective of energy saving, consumption reduction, cost reduction and productivity improvement. It has formed a series of products and replaced it in many fields. Hard tooth surface planetary reducer, cycloid reducer, cylindrical gear reducer and worm gear reducer.

At present, a certain number of technical solutions based on three-ring reducers have appeared in the form of patents, but at the same time there are certain defects, such as complex mechanisms, large noise, vibration, and low efficiency. The new metallurgical torpedo tank body tilting device is developed for these practical problems in production, and also provides a new combination of solutions, which can be applied to large torpedo vehicles, especially 320 tons, 400 tons, and 600 tons torpedo car.

Utility model content

The purpose of this utility model is to use the three-ring transmission technology to make the three-ring reducer used for the overturning transmission of the metallurgical torpedo tank, fully absorb the advantages of various existing technologies, and provide a simple structure, high reliability, and large transmission ratio. , stable movement, and strong load-bearing capacity metallurgical torpedo tank tipping transmission device.

The utility model adopts the following technical solutions to achieve the above object:

A tank tilting device for a torpedo vehicle, including a variable speed prime mover, a primary reducer, a final reducer, a crank, a tension and compression rod, a torsion rod, a travel switch, an adjustable screw, a support sleeve and other parts, with a brake and The variable speed prime mover of the handwheel can be an AC variable frequency motor or a DC speed regulating motor. The output shaft of the variable speed prime mover is fixedly connected with the input shaft of the primary reducer. The primary reducer can be a two-stage three-ring reducer with the same transmission parameters. Or the combined reducer with three rings for the low-speed stage below the third stage; the output shafts of the two primary reducers are respectively set on the input shafts of the final reducer, and the box bodies are fixedly connected by flange-shaped connecting plates to realize Dual input achieves the purpose of power splitting; the final reducer adopts a two-point meshing cylindrical gear reducer, and the large gear in the final reducer is driven around by two small gears. This technical solution is adopted for the main drive of the torpedo tank tilting device The ratio can reach more than 25,000. The final reducer is suspended and installed on the trunnion of the torpedo tank body, and the torque is transmitted to the trunnion through the expansion sleeve; Seat, two cranks, two tension and compression rods, and a flexible support member composed of a torsion bar. It is hinged with one end of two cranks, and the other ends of the two cranks are respectively fixed to the two ends of a torsion bar. The two ends of a torsion bar are connected to two torsion bar supports in a rotatable manner. The support is connected with the platform.

Among them, a safety device is installed on the flexible supporting member. The safety device includes a travel switch, an adjustable screw, an adjustment nut, a bent plate, a bracket and a support sleeve, etc. The support sleeve is set on the torsion bar, and one end of the support sleeve is fixedly connected with a crank. , the other end is fixedly connected to the bent plate, and the travel switch is fixedly installed on the bent plate, and the bracket is fixedly connected with another crank. Two adjustable screws are installed on the bracket, and their positions correspond to the contact rollers of the travel switch. Connected with the control circuit, the displacement is determined by adjusting two adjustable screws, and the variable speed prime mover is controlled by the travel switch to prevent the torsion bar from being plastically deformed or twisted, thereby protecting the entire tilting device.

The utility model has the following beneficial effects:

1. The final stage reducer adopts two-point meshing cylindrical gear reducer, which has simple structure, convenient manufacturing and maintenance, low manufacturing accuracy requirements, low cost, high efficiency and large output torque.

2. Two two-stage three-ring reducers with the same transmission parameters or a combined reducer with a three-ring low-speed stage below the third stage are respectively set on the input shaft of the final stage reducer, and the casings are connected in the form of flanges The plate connection achieves double input power splitting, improves the anti-overload capacity, has a greater bearing capacity for deformation and impact loads, and improves the service life and reliability of the whole machine.

3. The primary reducer can be a two-stage three-ring reducer or a combined reducer with a three-ring low-speed stage below the third stage. The reduction ratio can reach up to 10,000, which reduces the number of transmission stages from one to two stages and makes the transmission chain more efficient. For compactness, the structure is simplified, the cost is reduced, and the reliability is increased.

4. The utility model adopts a full-suspension flexible transmission device. The full-suspension flexible transmission device is a rotational moment balance device that causes the rotation of the suspension final-stage reducer shell when the tank body of the mixed iron car is tilted. At the same time, the flexible support member is provided with a novel Safety device, this series of combinations further improves the running stability, safety and reliability of the tank body tilting device of the mixed iron car.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a front view of the utility model;

Fig. 3 is a schematic structural diagram of the safety device in Fig. 2 .

Label description:

Variable speed prime mover 1; primary reducer 2; final reducer 3; bearing housing 4;

Tank body 5; platform 6; support seat 7; torsion bar support 8;

Crank 9; Pull and press bar 10; Connecting plate 11; Torsion bar 12;

Travel switch 13; Adjustable screw rod 14; Adjustment nut 15; Bracket 16;

Bending plate 17; Support sleeve 18;

Detailed ways:

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in detail.

Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model consists of two variable speed prime movers 1, two primary reducers 2, one final stage reducer 3, two support seats 7, and two torsion bar supports 8 , two cranks 9, two pulling and pressing rods 10, two connecting plates 11, a torsion bar 12, a travel switch 13, two adjustable screw rods 14, two adjusting nuts 15, a bracket 16, and a bent plate 17, a supporting sleeve 18 etc. are formed.

The output shaft of variable speed prime mover 1 with brake and handwheel is fixedly connected with the input shaft of primary reducer 2, and the output shafts of two primary reducers 2 are respectively set on the two input shafts of one final reducer 3, Two connecting plates 11 in the form of flanges are respectively used for fixed connection between the front and rear boxes. A final reducer 3 is suspended and installed on the trunnion of the tank body of the torpedo vehicle. The support bases 7 at both ends of the bottom of the final reducer 3 box are connected to a flexible support member composed of two torsion bar supports 8, two cranks 9, two tension and compression bars 10, and a torsion bar 12. The flexible support member The upper joints of the two tension and compression rods 10 are hinged with the two support seats 7, the lower joints of the two tension and compression rods 10 are respectively hinged with one end of the two cranks 9, and the other ends of the two cranks 9 are respectively connected with a torsion bar 12 The two ends of a torsion bar 12 are fixed, and the two ends of a torsion bar 12 are connected with two torsion bar supports 8 in a rotatable manner, and the two torsion bar supports 8 are connected with the platform 6, and a safety device is installed on the flexible support member to prevent The torsion bar 12 is plastically deformed or twisted off, and the above structure respectively forms a tilting structure of the tank of the gear reducer on the output shaft of the variable speed prime mover 1 and the final reducer 3 .

The variable speed prime mover 1 adopts an AC variable frequency motor or a DC speed regulating motor with a brake and a hand wheel, which can realize stepless speed regulation.

The primary reducer 2 can be a two-stage three-ring reducer or a combined reducer with a three-ring low-speed stage below the third stage.

When the two variable-speed prime movers 1 start, brake and run, the input mechanism is driven through the primary reducer 2 to achieve a first-stage deceleration and output power and torque through the output shaft of the primary reducer 2 . The output shafts of the two primary reducers 2 are respectively set on the two input shafts of a final reducer 3 to drive the two input shafts of the final reducer 3 to rotate. Since the final reducer 3 adopts a two-point meshing cylinder Gear reducer, so the large gear in the final reducer is peripherally driven by two small gears. The output gear transmits motion and torque to the output shaft, and the output shaft transmits the torque to the trunnion through the expansion sleeve keyless connection, driving the tank body 5 supported on the bearing seat 4 to rotate, realizing the functions of deceleration and torque transmission.

Since the primary reducer 2 uses a two-stage three-ring reducer or a combined reducer with a three-ring low-speed stage below the third stage, it is a multi-point internal meshing shunt transmission, and the number of meshing teeth at the same time is as many as 9 to 18 pairs. The specific working principle As well as the structural composition, it has been disclosed in the invention patent with the patent number of 85106692.5, which realizes a large transmission ratio deceleration by means of a small tooth difference planetary transmission meshing, and the two-stage deceleration range can reach 10,000. Since the final reducer 3 adopts a two-point meshing cylindrical gear reducer, the utility model realizes double-input two-point meshing, achieves the purpose of power splitting, greatly improves the anti-overload capacity of the whole set of devices, and is effective for deformation and impact loads. Large bearing capacity improves the service life and reliability of the whole device.

The utility model adopts a full-suspension flexible transmission device. The full-suspension flexible transmission device is a rotational moment balance device that causes the casing of the suspended final reducer 3 to rotate when the tank body of the balance torpedo is tilted. The torsion bar 12 is twisted to absorb the torque and transfer the torque Converted into vertical tension and pressure, it is transmitted to the foundation platform 6 through the crank 9 at the two ends of the torsion bar 12 and the torsion bar support 8. Due to the tension and pressure, the torsion bar 12 forms an opposite torque, resulting in an absorption tilting moment The effect, which further improves the running stability and safety and reliability of the tank tilting device of the mixed iron car.

When the impact load on the tilting device is relatively large, the deformation produced by the shell of the final reducer 3 will cause the torsion bar 12 to twist to the limit, resulting in plastic deformation or twisting, and at this time, the insurance installed on the flexible support member The device will function. The safety device includes a travel switch 13, an adjustable screw rod 14, an adjustment nut 15, a bracket 16, a bent plate 17, and a support sleeve 18. Around the axis of the torsion bar 12, and twisting in the opposite direction, it drives the support sleeve 18 coaxial with the torsion bar 12 to twist in one direction, and also drives the bracket 16 installed with two adjustable screw rods 14 to twist in the opposite direction. When the displacement of the two adjustable screw rods 14 is preset, the adjustable screw rod 14 presses the contact roller of the travel switch 13, triggers the normally closed contact of the travel switch 13, and cuts off the power supply of the variable speed prime mover 1 through the control circuit, so that the variable speed The prime mover 1 is shut down to prevent the torsion bar from being plastically deformed or twisted off, thereby protecting the whole set of tilting devices.

Claims (2)

1. torpedo car tank body tiling arrangement, include variable-ratio prime mover, elementary decelerator, final stage decelerator etc., it is characterized in that: the variable-ratio prime mover (1) that has brake and handwheel can be alternating-current variable frequency motor or dc speed-regulating motor, output shaft of variable-ratio prime mover (1) and elementary decelerator (2) power shaft are fixedly connected, and it is the combined type decelerator of three rings that two elementary decelerators (2) are selected two-stage three-ring speed reducer or slow speed turbine stage below three grades with identical transmission parameter for use; The output shaft of two elementary decelerators (2) is set on two power shafts of final stage decelerator (3), is fixedly connected between the casing of front and back; Final stage decelerator (3) adopts two point gearing cylinder gear speed reducers, and gear wheel is carried out peripheral drive by two pinions in the final stage decelerator, and final stage decelerator (3) is draped and is installed on the torpedo car tank body gudgeon, transfers a torque to gudgeon by expansion set; The supporting seat (7) at final stage decelerator (3) bottom half two ends with by two torsion bar anchors (8), two cranks (9), two strut and ties (10), the flexible support member that a torque arm (12) is formed connects, two strut and tie (10) top connections in the flexible support member and two supporting seats (7) are hinged respectively, two strut and ties (10) lower contact is hinged with an end of two cranks (9) respectively, the other end of two cranks (9) is fixed with the two ends of a torque arm (12) respectively, the two ends of a torque arm (12) connect with two torsion bar anchors (8) in rotary mode, and two torsion bar anchors (8) connect with platform (6).

2. a kind of torpedo car tank body tiling arrangement according to claim 1, it is characterized in that: safeties are installed on the flexible support member, safeties include travel switch (13), adjusting screw (14), adjust nut (15), support (16), bent plate (17) and splicing sleeve (18) etc., splicing sleeve (18) is sleeved on the torque arm (12), splicing sleeve (18) one ends and a crank (9) are fixedly connected, the other end bent plate (17) that is fixedly connected, be installed with travel switch (13) on the bent plate (17), support (16) is fixedly connected with another crank (9), two adjusting screws (14) are installed on the support (16), its position is corresponding with the contact roller of travel switch (13), and travel switch (13) connects with control circuit by lead.

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