CN101767593B - Cross slider type sliding plug door mechanism - Google Patents

Abstract

The cross slider type sliding door mechanism of the present invention relates to a switch and sealing mechanism of a high-speed train sliding door, and is especially suitable for the opening and closing and sealing of subway or high-speed train doors. It is composed of stepping motor, lead screw, lead screw nut, support, main shaft, cross slider, guide rod, plug door body, guide wheel and guide groove; the main shaft is fixed on the support, and one of the holes of the cross slider Cooperate with the main shaft and can slide along the main shaft. The other vertical hole of the cross slider is matched with the guide rod. Movement in the guide groove, the guide groove is made into the shape of a straight line and an arc, when the guide wheel moves along the guide groove under the drive of the cross slider, it will drive the plug door to realize the opening and closing of the door, and realize the plug movement; Wherein the movement of the cross slide is to drive the lead screw to rotate through the stepping motor, so that the lead screw nut moves in a straight line, and the lead screw nut is fixedly connected with the cross slide.

Description

Cross slider sliding door mechanism

technical field

The cross slider type sliding door mechanism of the present invention relates to a switch and sealing mechanism of a high-speed train sliding door, and is especially suitable for the opening and closing and sealing of subway or high-speed train doors.

Background technique

The common train plug door is two doors, which realize the movement of opening or closing. In order to realize the sealing when closing the door, an inward plug pressing movement must be added to ensure a good sealing effect after the door is closed. In order to realize this function, there are three different types of mechanisms at home and abroad. The first type is represented by the domestic mechanism, which mainly realizes the opening and closing of the door along the x direction, and realizes the plug movement along the y direction to achieve sealing. However, the main shaft moving along the x direction is not fixed, and it moves along the y direction at the same time, so the stability of the main shaft is slightly poor, the structure size is large, and it takes up a lot of space. The second type is a mechanism represented by a foreign company, which realizes the opening and closing of the door along the x direction. The main shaft moving in the x direction is fixed and has good rigidity. The double rocker mechanism realizes the plugging of the door, which has good rigidity but large size. The third type of mechanism is also represented by a certain foreign company. It also realizes the opening and closing of the door along the x direction, the main shaft is fixed, and the door's plugging movement uses a four-bar mechanism that rotates around the z circle to realize the plugging seal of the door. .

Contents of the invention

The object of the present invention is to aim at the deficiencies of the commonly used sliding door mechanisms at present, and to provide a cross slider type sliding door mechanism, which is a new sliding door movement mechanism. The present invention combines the strengths of various companies to overcome A new cross-slider type sliding mechanism is formed to overcome the deficiencies of various companies, which makes the movement of the sliding door more reliable, the size is more compact, and the cost is also reduced.

The cross slider type sliding door mechanism of the present invention is realized by adopting the following technical solutions:

The cross slider type plug door mechanism is composed of a stepping motor, a lead screw, a lead screw nut, a support, a main shaft, a cross slider, a guide rod, a plug door body, a guide wheel and a guide groove.

The main shaft is fixed on the support, one of the holes of the cross slider is matched with the main shaft and can easily slide along the main shaft, the other vertical hole of the cross slider is matched with the guide rod, and the plug door body and the guide rod are connected by screws Fixed connection, the guide rod is equipped with a guide wheel, the guide wheel is limited to move in the guide groove, the guide groove is made into a straight line and arc shape, when the guide wheel moves along the straight line part of the guide groove driven by the cross slider Drive the plug door to go straight to realize the opening and closing of the door. When the guide wheel reaches the arc part of the guide groove, it drives the plug door to walk a section of arc to realize the plug movement. The movement of the cross slider is to drive the screw to rotate through the stepping motor, so that the screw nut moves in a straight line. Groove movement.

working principle:

When the cross slider type sliding door mechanism is working, the stepper motor drives the screw to rotate, and drives the screw nut to move in a straight line. The guide rod and the plug door move along the x direction to realize the opening and closing of the door. Since the guide rod and the plug door are passively moved, limited by the movement of the guide groove, the guide groove is designed as a geometric shape of a straight line plus an arc, and the straight line It controls the straight line opening and closing of the door, and the circular arc section forces the door to walk a circular arc to realize the compound movement of the door.

The high-speed train sliding door is used for the switch and sealing of the door of the subway or high-speed train. It is mainly required to open and close the door quickly, and the plug seal is reliable. The cross slider type plug door mechanism of the present invention can meet the above-mentioned door opening and closing and plug movement, but it is quite different from the above-mentioned many mechanisms, and the structure is simpler Reliable and low in cost, it provides a guarantee for reducing the cost and increasing the reliability of the sliding door.

The present invention combines the strengths of each company, overcomes the shortcomings of each company, and forms a new cross-slider type plug mechanism, which makes the sliding door more reliable in movement and more compact in size, and also reduces costs and increases the sliding door movement. reliability.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

Figure 1 is a schematic diagram of the cross slider type sliding door mechanism.

Detailed ways

With reference to accompanying drawing 1, cross slider type plug door mechanism is made of stepping motor 1, leading screw 2, leading screw nut 3, bearing 10, main shaft 5, cross slider 4, guide rod 7, plug door body 6, Guide wheel 8, guide groove 9 form.

The main shaft 5 is fixed on the support 10, one of the holes of the cross slider 4 cooperates with the main shaft 5 and can easily slide along the main shaft 5, and the other vertical hole of the cross slider 4 cooperates with the guide rod 7, and the plug door Body 6 is fixedly connected with this guide rod 7 with screws, and guide wheel 8 is housed on guide rod 7, and guide wheel 8 is limited to move in guide groove 9, and guide groove 9 is made into the shape that straight line adds arc, when guide wheel 8 is in When the cross slider 4 moves along the straight line of the guide groove 9, it will drive the plug door 6 to go straight to realize the opening and closing of the door. When the guide wheel 8 reaches the arc part of the guide groove 9, it will drive the plug door 6 Door 6 has walked a section of circular arc thereby realized the Sierra motion. The movement of the cross slider 4 is to drive the screw 2 to rotate through the stepping motor 1, so that the screw nut 3 moves linearly, and the screw nut 3 is fixedly connected with the cross slider 4, so that the cross slider 4 also moves linearly. Thereby drive plug door 6 to move along guide groove.

With reference to accompanying drawing 1, described stepping motor 1 is connected with leading screw 2 with shaft coupling 12, and the two ends of leading screw 2 axles are fixed on the carriage 10 by bracket, and leading screw nut 3 is made as leading screw 2 rotates. Moving linearly, the screw nut 3 and the Oldham 4 are fixedly connected with screws through the connecting rod 11 . When the lead screw nut moves, the cross slider 4 is forced to move along the axial direction (x-axis) of the main shaft 5 fixed on the compartment, thereby driving the guide rod 7 and the plug door 6 to move to realize the opening and closing of the door, the guide rod 7 It is a follower that is fixedly connected with the plug door 6 with screws, and a guide wheel 8 is housed on the guide rod. The guide wheel 8 can only move in the groove of the guide groove 9. The geometric shape of the arc, the straight line part controls the straight line opening and closing of the door, and the arc part forces the door to walk a circular arc to realize the compound movement of the door.

Claims (4)

1. A cross slider type plug door mechanism, characterized in that it consists of a stepping motor, a leading screw, a screw nut, a bearing, a main shaft, a cross slider, a guide rod, a plug door body, a guide wheel, and a guide groove composition; The main shaft is fixed on the support, one of the holes of the cross slider is matched with the main shaft and can slide along the main shaft, the other perpendicular hole of the cross slider is matched with the guide rod, and the plug door body is fixed with the guide rod by screws. The guide wheel is installed on the guide rod, and the guide wheel is limited to move in the guide groove. The guide groove is made into a straight line and an arc shape. When the guide wheel moves along the straight line of the guide groove driven by the cross slider, it will drive The sliding door walks in a straight line to realize the opening and closing of the door. When the guide wheel reaches the arc part of the guide groove, it drives the sliding door to walk a certain arc to realize the sliding movement; the movement of the cross slider is through The stepping motor drives the lead screw to rotate, so that the lead screw nut moves linearly, and the lead screw nut is fixedly connected with the cross slider, so that the cross slider also moves linearly, thereby driving the plug door to move along the guide groove. 2. The cross slider type sliding door mechanism according to claim 1, characterized in that the lead screw nut and the cross slider are fixedly connected by screws through a connecting rod. 3. The cross slider type sliding door mechanism according to claim 1, characterized in that the stepper motor is connected to the lead screw by a coupling, and the shafts at both ends of the lead screw are fixed on the carriage through brackets. 4. The cross slider type sliding door mechanism according to claim 1, characterized in that at least one cross slider is provided.

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