Hopper car bottom door unit type opening and closing mechanism

Abstract

The utility model discloses a hopper car bottom door unit type opening and closing mechanism, and belongs to the field of railway hopper cars. The opening and closing mechanism comprises an air cylinder, a connecting rod, two fixed supports, two driving crutches, two driving rods, two flexible connecting bases and a pin shaft. One end of the connecting rod is connected with the air cylinder, the lower portions of the left end and the right end of the connecting rod are connected with the driving crutches respectively, the two driving crutches are connected to a middle beam of the hopper car through fixing supports respectively, and the other ends of the driving crutches are connected with the driving rod through flexible connecting bases. Structures at the lower parts of the left and right ends of the connecting rod are symmetrically arranged; the bottom ends of the two driving rods are located at the two ends of the bottom door respectively and connected with the bottom door through bottom door supports. The opening and closing mechanism provided by the utility model can realize the function of independently controlling the opening and closing of the bottom door; the structure is simple, manufacturing cost is low and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to a unit-type opening and closing mechanism for a bottom door of a hopper car, belonging to the field of railway hopper cars. Background Art

[0002] Railway transport hopper cars are mainly used to transport coal, ore, grain, etc. The loading and unloading method is top loading and bottom unloading. The bottom door plays a very important functional role as a unloading device. Its driving mechanism generally adopts a complex wind control system. The unloading method is generally all open or all closed, and there is no separate opening and closing mechanism to control a certain bottom door.

[0003] The utility model mainly develops an opening and closing mechanism suitable for the bottom door of a hopper car, which has a simple structure and can realize the independent control of a bottom door. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a unit-type opening and closing mechanism for the bottom door of a hopper car, which has a simple structure and has the function of controlling the opening and closing of a single bottom door.

[0005] The technical solution adopted in this utility model is:

[0006] A unit-type opening and closing mechanism for a hopper car bottom door comprises a cylinder, a connecting rod, two fixed supports, two driving cranks, two driving rods, two flexible connecting seats and a pin shaft;

[0007] One end of the connecting rod is connected to the cylinder, and the lower parts of the left and right ends of the connecting rod are respectively connected to the driving cranks. The two driving cranks are respectively connected to the middle beam of the hopper car through fixed supports, and the other end of the driving crank is connected to the driving rod through a flexible connecting seat; the structures at the lower parts of the left and right ends of the connecting rod are symmetrically arranged; the bottom ends of the two driving rods are respectively located at the two ends of the bottom door, and are connected to the bottom door through the bottom door supports.

[0008] The structures of the various components of the above-mentioned opening and closing mechanism are further described as follows:

[0009] The cylinder is a structure with a push rod that propels the air in one direction, and is driven by compressed air, which is the gas stored in the train brake pipe system or the air cylinder.

[0010] The connecting rod is in the shape of a long strip or a column, and is provided with holes at both ends.

[0011] The fixed support consists of a base plate, an intermediate shaft and a nut. The base plate is processed into a square shape by steel plate and is welded to the middle beam of the hopper car. The intermediate shaft is a cylindrical structure and is processed from rod material. One end is a smooth cylinder and the other end is a threaded structure. The smooth end is connected to the base plate by welding, and the nut is fixed to the threaded end of the intermediate shaft.

[0012] The driving crank is an L-shaped plate structure, with axial holes processed at the two side ends and the L-shaped corners of the L-shaped plate. The upper part of the L-shaped plate is fixed to the connecting rod through the axial hole by a pin shaft. The axial hole at the corner passes through the middle shaft of the fixed support and a nut is set at the end to fasten the driving crank and the fixed support into one; the axial hole at the lower part of the L-shaped plate is connected to the flexible connecting seat.

[0013] The driving rod is in the shape of a long strip or column, with holes at both ends. The hole at the upper end is connected to the flexible connecting seat through a pin shaft, and the hole at the lower end is connected to the bottom door support through a pin shaft. The bottom door support is welded to the bottom door.

[0014] The flexible connector is composed of five welded long or triangular plates, with a connecting plate in the middle. A set of parallel plates is positioned on either side of the connecting plate, with the two parallel plates arranged perpendicularly and crosswise. Furthermore, holes are provided at the ends of the two sets of parallel plates, with the two sets of holes oriented perpendicularly and crosswise. Specifically, one set of parallel plates is a long plate with axial holes at the ends, which are connected to the lower portion of the L-shaped plate via a first pin. The other set of parallel plates is a triangular plate with axial holes at the ends, which are connected to the drive rod via a second pin. Here, the first and second pins are arranged perpendicularly in three-dimensional space.

[0015] The specific connection structure between the utility model and the hopper car is as follows:

[0016] The cylinder is fixed to the lower plane of the hopper car's center beam, connecting the brake pipe (an existing component in the hopper car) to the cylinder's air hole, which drives the cylinder push rod back and forth. The front end of the push rod is connected to the connecting rod and driving crank by a pin. The driving crank passes through the intermediate shaft of the fixed support and is fixed. The other end of the connecting rod is connected to another driving crank and fixed to the intermediate shaft of another fixed support. Both fixed supports are fixed to the lower plane of the hopper car's center beam. The other ends of the two driving cranks are connected to flexible connecting blocks, which are respectively connected to the drive rod. The bottom of the drive rod has an axial hole that connects to the bottom door support, which is welded to the bottom door.

[0017] The working principle of this utility model:

[0018] When the cylinder is supplied with air, the connecting rod is pushed to move. The connecting rod moves to the right under the drive of the cylinder, driving the driving rod to move. The driving crank rotates along the intermediate shaft. The intermediate shaft is fixed. The driving crank drives the flexible connecting seat and the driving rod to move, realizing the independent opening and closing of the bottom door of the hopper car.

[0019] The opening and closing mechanism of the hopper car bottom door provided by the utility model brings the following beneficial effects:

[0020] (1) The opening and closing function of the bottom door can be controlled independently.

[0021] (2) Simple structure, low manufacturing cost and easy maintenance.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the hopper car body of the utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the opening and closing mechanism of the bottom door in the closed state when looking up at the middle vehicle body.

[0025] Figure 3 Schematic diagram of the opening and closing mechanism with the bottom door open.

[0026] Figure 4 for Figure 1 The effect of the bottom door being opened from the left side of the middle vehicle body.

[0027] Figure 5 This is the three-view drawing of the fixed support.

[0028] Figure 6 This is the structural diagram of the connecting rod.

[0029] Figure 7 This is the structural diagram of the drive rod.

[0030] Figure 8 This is the structural diagram of the driving crank.

[0031] Figure 9 This is the three-view drawing of the flexible connector.

[0032] Figure 10 This is the bottom door structure diagram.

[0033] In the figure, 1 is the cylinder, 2 is the fixed support, 3 is the connecting rod, 4 is the driving crook, 5 is the flexible connecting seat, 6 is the driving rod, 7 is the base plate, 8 is the intermediate shaft, 9 is the nut, and 10 is the bottom door support. DETAILED DESCRIPTION Example

[0034] like Figures 1 to 10 As shown, a unit-type opening and closing mechanism for the bottom door of a hopper car includes a cylinder 1, a connecting rod 3, two fixed supports 2, two driving cranks 4, two driving rods 6, two flexible connecting seats 5 and a pin shaft;

[0035] One end of the connecting rod 3 is connected to the cylinder 1, and the lower parts of the left and right ends of the connecting rod 3 are respectively connected to the driving cranks 4. The two driving cranks 4 are respectively connected to the middle beam of the hopper car through fixed supports 2, and the other end of the driving crank 4 is connected to the driving rod 6 through a flexible connecting seat 5; the structures at the lower parts of the left and right ends of the connecting rod are symmetrically arranged; the bottom ends of the two driving rods 6 are respectively located at the two ends of the bottom door, and are connected to the bottom door through the bottom door supports 10.

[0036] The structures of the components of the above mechanism are further described as follows:

[0037] The cylinder 1 is a structure with a push rod that propels the air in one direction, and is driven by compressed air, which is the gas stored in the train brake pipe system or the air cylinder.

[0038] The connecting rod 3 is in the shape of a long strip or a column, with holes provided at both ends.

[0039] The fixed support 2 is composed of a base plate 7, an intermediate shaft 8 and a nut 9. The base plate is made of square steel plate and is welded to the center beam of the hopper car. The intermediate shaft is cylindrical as a whole and can be made of bar material. One end is a smooth cylinder and the other end is a threaded structure. The smooth end is connected to the base plate by welding, and the nut is fixed to the threaded end of the intermediate shaft.

[0040] The driving crank 4 is an L-shaped plate structure, with axial holes processed at the two side ends and the L-shaped corners of the L-shaped plate. The upper part of the L-shaped plate is fixed to the connecting rod through the axial hole by a pin shaft. The axial hole at the corner passes through the middle shaft of the fixed support and a nut is set at the end to fasten the driving crank and the fixed support into one; the axial hole at the lower part of the L-shaped plate is connected to the flexible connecting seat.

[0041] The driving rod 6 is in the shape of a long strip or column, with holes at both ends. The hole at the upper end is connected to the flexible connecting seat through a pin, and the hole at the lower end is connected to the bottom door support through a pin, and the bottom door support is welded to the bottom door.

[0042] The flexible connector 5 is composed of five welded long or triangular plates, with a connecting plate in the middle. A set of parallel plates is provided on either side of the connecting plate, and the parallel plates on both sides are arranged in a cross-perpendicular manner. Furthermore, holes are provided at the ends of the two sets of parallel plates, and the two sets of holes are oriented in a cross-perpendicular manner. Specifically, one set of parallel plates is a long plate, with axial holes at the ends of the two long plates, which are connected to the lower part of the L-shaped plate via a first pin. The other set of parallel plates is a triangular plate, with axial holes at the ends of the two triangular plates, which are connected to the drive rod via a second pin. Here, the first and second pins are arranged perpendicularly in three-dimensional space.

[0043] The specific operation method is:

[0044] (1) Fix the cylinder on the lower plane of the center beam of the hopper car, connect the brake pipe (the original component in the hopper car) and the air hole of the cylinder to drive the cylinder push rod to move forward and backward.

[0045] (2) The front end of the cylinder push rod is connected to the connecting rod and the driving crank by a pin shaft. The driving crank passes through the intermediate shaft of the fixed support and is fixed; the other end of the connecting rod is connected to another driving crank and fixed on the intermediate shaft of another fixed support. The two fixed supports are fixed on the lower plane of the middle beam of the hopper car body. The other ends of the two driving cranks are connected to the flexible connecting seats, which are respectively connected to the driving rod. The bottom of the driving rod is provided with an axis hole, which is connected to the bottom door support. The bottom door support is welded to the bottom door.

[0046] (3) When the air is supplied to the cylinder, the connecting rod is pushed. The connecting rod moves to the right under the drive of the cylinder, driving the driving rod to move. The driving crank rotates along the intermediate shaft. The intermediate shaft is fixed. The driving crank drives the flexible connecting seat and the driving rod to move, realizing the independent opening and closing action of the bottom door of the hopper car.

Claims

1. A unit-type opening and closing mechanism for a hopper car bottom door, characterized in that: It includes a cylinder, a connecting rod, two fixed supports, two driving cranks, two driving rods, two flexible connecting seats and a pin shaft; One end of the connecting rod is connected to the cylinder, and the lower parts of the left and right ends of the connecting rod are respectively connected to the driving cranks. The two driving cranks are respectively connected to the middle beam of the hopper car through fixed supports, and the other end of the driving crank is connected to the driving rod through a flexible connecting seat; the structures at the lower parts of the left and right ends of the connecting rod are symmetrically arranged; the bottom ends of the two driving rods are respectively located at the two ends of the bottom door, and are connected to the bottom door through the bottom door supports.

2. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The cylinder is a structure with a push rod that propels the air in one direction, and is driven by compressed air, which is the gas stored in the train brake pipe system or the air cylinder.

3. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The connecting rod is in the shape of a long strip or a column, and is provided with holes at both ends.

4. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The fixed support consists of a base plate, an intermediate shaft and a nut. The base plate is a square steel plate, which is welded to the center beam of the hopper car. The intermediate shaft is a cylindrical structure with a smooth cylinder at one end and a threaded structure at the other end. The smooth end is welded to the base plate as a whole, and the nut is connected and fixed to the threaded end of the intermediate shaft.

5. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The driving crank is an L-shaped plate structure, with axial holes processed at the two side ends and the L-shaped corners of the L-shaped plate. The upper part of the L-shaped plate is fixed to the connecting rod through the axial hole by a pin shaft. The axial hole at the corner passes through the middle shaft of the fixed support and a nut is set at the end to fasten the driving crank and the fixed support into one; the axial hole at the lower part of the L-shaped plate is connected to the flexible connecting seat.

6. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The driving rod is in the shape of a long strip or column, with holes at both ends. The hole at the upper end is connected to the flexible connecting seat through a pin shaft, and the hole at the lower end is connected to the bottom door support through a pin shaft. The bottom door support is welded to the bottom door.

7. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 1, characterized in that: The flexible connecting seat is composed of five long strips or triangular plates welded together, with a connecting plate in the middle and a group of parallel plates on both sides of the connecting plate, and the parallel plates on both sides are cross-vertically arranged.

8. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 7, characterized in that: Holes are respectively provided at the ends of the two groups of parallel plates, and the directions of the two groups of holes are cross-vertical.

9. The unit-type opening and closing mechanism for the bottom door of a hopper car according to claim 8, characterized in that: One group of parallel plates is a long strip, and an axial hole is provided at the end of each of the two long strips. The axial hole is connected to the lower part of the L-shaped plate through a first pin; the other group of parallel plates is a triangular plate, and an axial hole is provided at the end of each of the two triangular plates. The axial hole is connected to the driving rod through a second pin, and the first pin and the second pin are arranged vertically here.

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