CN110053645A - A kind of multistage collision energy-absorbing pilot of deployable and collapsible - Google Patents

Abstract

The invention discloses a retractable multi-stage collision energy absorbing barrier remover. The barrier remover assembly includes a barrier remover, a fixed part, and an adjustment part. The front end of the barrier remover is provided with a multi-level collision energy absorption structure, which can solve the problem of collision energy absorption of the barrier remover; the fixed part is installed on the head car of the EMU and the On the tail car, the adjustment parts are installed on the head car and the tail car of the EMU, and the obstacle remover is installed on the fixed parts. Wherein, the adjusting part can make the obstacle remover rotate around the fixed axis, so as to complete the retraction and release work of the obstacle remover. According to the above measures, not only the collision energy absorption problem of the barrier remover can be well solved, but also the air resistance during the operation of the EMU can be reduced. The invention has the advantages of good collision energy absorption, simple structure and too small design margin.

Description

A retractable multi-stage collision energy absorbing obstacle remover

technical field

The invention relates to the technical field of motor vehicle barrier removers, in particular to a retractable multi-stage collision energy-absorbing barrier remover.

Background technique

The obstacle remover is a component installed at the bottom of the head car and the tail car of the EMU. It is used to remove obstacles on the track and prevent obstacles from entering the bottom of the car, causing damage to the equipment and bogie parts under the car. As far as the current structure of the barrier remover is concerned, it can be roughly divided into two types, one is an integrated structure, which is integrally fixed on the vehicle body. and the safety of bogie components; the other is a barrier remover with a large energy-absorbing structure, which has a higher energy absorption level, but the barrier remover generally does not have too strong collisions, so this structure will cause design margins Excessive, and its structure is complex, the installation is cumbersome, and the manufacturing cost is too high.

In addition, with the continuous improvement of the speed of the EMU, air resistance has become one of the main factors restricting the running speed of the EMU. During the operation, the EMU needs to consume a lot of energy to overcome the air resistance. At present, the main method to solve this problem is to The shape of the front of the car is optimized, but we should also consider the influence of other car body equipment on the air resistance, so the present invention selects the obstacle remover as the design goal. The head car of the existing EMU has the same shape as the tail car, and the obstacle remover is fixedly installed at the bottom. During operation, the obstacle remover on the tail car does not play a role in removing obstacles, but will increase the air resistance of the EMU and affect the EMU. running speed.

Therefore, there is an urgent need in the current technical field of a barrier remover, which not only needs to solve the problem of collision energy absorption, but also can reduce the air resistance.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a retractable multi-stage collision energy absorbing barrier remover, which can not only realize the collision energy absorption of the barrier remover, but also reduce the air resistance of the EMU during operation. .

The technical solution of the present invention is realized as follows:

A retractable multi-stage collision energy-absorbing obstacle remover, comprising a first-level energy-absorbing box, an energy-absorbing box rib plate, an energy-absorbing box shell, a second-level energy-absorbing box, an obstacle-removing device body, a hinge base I component, Set screw Ⅰ, hinge seat Ⅰ, adjustment parts, connecting rod, hinge joint, hydraulic cylinder, piston rod, hinge seat Ⅱ component, hinge seat Ⅱ, support seat, pin Ⅲ, car body, pin Ⅱ, stud bolt, opening Pin, pin I, is characterized in that the first-level energy-absorbing box is composed of a plurality of energy-absorbing box ribs and an energy-absorbing box shell, which are arranged at the front end of the retractable multi-stage collision energy-absorbing barrier and are welded on the On the barrier body; four secondary energy-absorbing boxes are symmetrically arranged following the primary energy-absorbing box, welded on the barrier body, and the two-level structures are fixed and separated by beams; It consists of set screw Ⅰ and hinge seat Ⅰ. The hinge seat Ⅰ is fixed on the body of the obstacle removal device with the set screw Ⅰ; the adjustment part is composed of connecting rod, hinge joint, hydraulic cylinder and piston rod, and the hydraulic cylinder is fixed on the car body by screws. On the central axis of the hydraulic cylinder, the piston rod is extended, retracted, and pressure-maintained along the body direction of the EMU by changing the direction of the hydraulic cylinder pressure oil. The hinge seat I component constitutes a rotating pair, the pin II is positioned axially with stud bolts, the other end of the connecting rod is formed by a pin I and the hinge joint to form a rotating pair, and the pin I axis is positioned with a split pin; the hinge seat II component consists of hinge seat II, It consists of support seat and pin III, a pair of hinge seat II is fixed on the vehicle body by screws, a pair of support seats is fixed on the body of the obstacle remover by screws, and is symmetrically arranged on both sides of the hydraulic cylinder). The hinge seat II and the support seat are used for The pin III constitutes a rotating pair; the obstacle remover body can rotate around a pair of pin III axes, and the piston rod is extended, retracted, and parked by controlling the oil input of the hydraulic cylinder, so that the obstacle remover body can be retracted, lowered, and parked; one A retractable multi-stage collision energy absorbing barrier is installed on the central axis of the head car and the tail car of an EMU.

Compared with the prior art, the advantages of the present invention are obvious, mainly manifested in:

1. A retractable multi-stage collision energy absorbing obstacle remover provided by the present invention has a multi-stage collision energy absorbing structure, which can meet the collision energy absorbing requirements of the obstacle remover, but will not cause the problem of excess design margin .

2. By adjusting the movement of the components and the crank rod, the entire obstacle remover assembly can be driven to move to complete the retraction and release work of the obstacle remover, thereby reducing the air resistance of the EMU during operation.

Description of drawings

The present invention has 7 drawings in total.

in:

1 is a schematic front view of the structure of the present invention;

Fig. 2 is the sectional view of A-A of Fig. 1;

Fig. 3 is the schematic diagram after the present invention is put down;

Fig. 4 is the schematic diagram after the present invention is put away;

Fig. 5 is the sectional view of B-B of Fig. 1;

Fig. 6 is the sectional view of D-D of Fig. 2;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 2 .

In the figure, 1, the first-level energy-absorbing box, 11, the energy-absorbing box ribs, 12, the energy-absorbing box shell, 2, the second-level energy-absorbing box, 3, the obstacle remover, 4, the hinge seat I component, 41, the tightening Set screw I, 42, hinge seat I, 5, adjusting part, 51, connecting rod, 52, hinge joint, 53, hydraulic cylinder, 54, piston rod, 6, hinge seat II assembly, 61, hinge seat II, 6- 2. Support seat, 63, Pin III, 7, Body, 8, Pin II, 9, Stud bolt, 10, Cotter pin, 11, Pin I.

Detailed ways

As shown in Figures 1, 2, 3, 4, 5, 6, and 7, a brake control device for an EMU includes a first-level energy-absorbing box 1, an energy-absorbing box rib 11, an energy-absorbing box shell 12, a second-level energy-absorbing box Energy absorbing box 2, obstacle remover body 3, hinge seat I assembly 4, set screw I41, hinge seat I42, adjusting part 5, connecting rod 51, hinge joint 52, hydraulic cylinder 53, piston rod 54, hinge seat II assembly 6. Hinge base II61, support base 62, pin III63, vehicle body 7, pin II8, stud bolt 9, split pin 10, pin I11, characterized in that the first-level energy-absorbing box 1 is composed of a plurality of energy-absorbing boxes The rib plate 11 and the energy-absorbing box shell 12 are formed, which are arranged at the front end of the retractable multi-stage collision energy-absorbing barrier and are welded on the barrier body 3; the four secondary energy-absorbing boxes 2 follow the first-level absorption The energy box 1 is symmetrically arranged at the rear, welded on the barrier body 3, and the two-level structures are fixed and separated by beams; The hinge seat I42 is fixed on the barrier body 3; the adjusting part 5 is composed of a connecting rod 51, a hinge joint 52, a hydraulic cylinder 53, and a piston rod 54. The hydraulic cylinder 53 is fixed on the central axis of the vehicle body 7 by screws, and the The hydraulic cylinder 53 pushes the piston rod 54 along the direction of the body of the EMU to extend, retract and maintain pressure in the direction of the oil supply. The I component 4 constitutes a rotating pair, the pin II8 is positioned axially with a stud bolt 9, the other end of the connecting rod 51 is formed by a pin I11 and a hinge joint 52 to form a rotating pair, and the pin I11 is axially positioned with a split pin 10; the hinge seat II component 6 consists of The hinge seat II61, the support seat 62 and the pin III63 are composed. A pair of hinge seats II61 are fixed on the vehicle body 7 by screws, and a pair of support seats 62 are fixed on the barrier body 3 by screws, and are symmetrically arranged on both sides of the hydraulic cylinder 53 , the hinge seat II61 and the support seat 62 form a rotating pair with a pin III63; the obstacle remover body 3 can rotate around the axis of a pair of pins III63, and by controlling the hydraulic cylinder 53 to enter the oil to push the piston rod to extend, retract and park, so that the obstacle removal device The body 3 can be retracted, put down and parked; a retractable multi-stage collision energy-absorbing obstacle remover is installed on the central axis of the head car and the tail car of the EMU.

Claims (1)

1. a kind of multistage collision energy-absorbing pilot of deployable and collapsible, including level-one energy-absorption box (1), energy-absorption box gusset (11), energy-absorbing Box shell (12), second level energy-absorption box (2), troubleshooting body (3), I component of hinge seat (4), holding screw I (41), hinge seat I (42), regulating member (5), connecting rod (51), hinge joint (52), hydraulic cylinder (53), piston rod (54), II component of hinge seat (6), Hinge seat II (61), support base (62), pin III (63), car body (7), pin II (8), stud (9), split pin (10), Pin I (11), it is characterised in that the level-one energy-absorption box (1) is by multiple energy-absorption box gussets (11), energy-absorption box shell (12) group At the multistage collision energy-absorbing pilot front end of deployable and collapsible is arranged in, is welded on troubleshooting body (3)；Four second level energy-absorption boxes (2) be arranged symmetrically, be welded on troubleshooting body (3) after following level-one energy-absorption box (1) closely, fixed between two-level configuration by beam and every It opens；I component of hinge seat (4) is made of holding screw I (41), hinge seat I (42), with holding screw I (41) by hinge seat I (42) It is fixed on troubleshooting body (3)；Regulating member (5) is by connecting rod (51), hinge joint (52), hydraulic cylinder (53), piston rod (54) Composition, hydraulic cylinder (53) push away on the central axes that screw is fixed on car body (7) by changing hydraulic cylinder (53) pressure oil oil inlet direction Piston bar (54) stretches along the vehicle body direction of EMU, contract and pressure maintaining is parked, piston rod (54) other end and hinge joint (52) it is threadedly coupled, connecting rod (51) one end forms revolute pair with I component of hinge seat (4) with pin II (8), and pin II (8) is axial It is positioned with stud (9), connecting rod (51) other end forms revolute pair, pin I (11) with hinge joint (52) with pin I (11) It is axial to be positioned with split pin (10)；II component of hinge seat (6) is made of hinge seat II (61), support base (62), pin III (63), A pair of of hinge seat II (61) is fixed on car body (7) by screw, and a pair of of support base (62) is fixed on troubleshooting body (3) by screw On, hydraulic cylinder (53) two sides, hinge seat II (61) and support base (62), which are arranged symmetrically in, with pin III (63) forms revolute pair；Row Barrier body (3) can be rotated around a pair of of pin III (63) axis, pushed piston rod to stretch by control hydraulic cylinder (53) oil inlet, contracted, stay Stop, realizes troubleshooting body (3) and pack up, put down, is parked；A kind of multistage collision energy-absorbing pilot of deployable and collapsible is mounted on motor-car On the central axes of group head vehicle and trailer.