Translation type grain hopper car top cover

Abstract

The present invention discloses a translation type top cover of a grain hopper car. The top cover includes a cover body located at a loading opening of a car body, wherein one side of the cover body is hinged to a crank throw, the crank throw is connected to a transmission shaft rotating in the car body, the other side of the cover body is hinged to a connecting lever, the connecting lever is hinged to the car body, and the transmission shaft is connected to a driving mechanism. The beneficial effects of the present invention are as follows: the top cover convenient to operate is provided to solve the problems of low working efficiency and operation with poor safety in the prior art; when the top cover is in the closed state, a self-locking air cylinder guarantees the vertical locking capacity of the top cover, a longitudinal stopping block guarantees the longitudinal locking capacity of the top cover, and a locking base and a locking rod guarantee the transverse locking capacity of the top cover; and a four-connecting-rod mechanism is formed among the car body, the crank throw, the connecting lever and the cover body to achieve translational opening and closing of the cover body and reduce space required.

Description

Technical Field

[0001] The present invention relates to the field of top cover technology for grain hopper cars, in particular to a translation type top cover of a grain hopper car.Background of the Invention

[0002] The grain hopper car is designed to transport bulk grain. A loading opening is provided at the top of a compartment of the grain hopper car, and the lower portion of the compartment is funnel-shaped to match with loading and unloading facilities. For loading, the grain is loaded into a car body through the loading opening by means of a discharge chute, and for unloading, the grain automatically flows out by its own gravity. Compared with the conventional transportation with boxcar and gondola car, the grain hopper car can effectively reduce the loading and unloading operation time, accelerate the car turnover, improve the loading and unloading working conditions and reduce the transportation cost.

[0003] The overall weight of the top cover of the existing grain hopper car is divided by segments in such a way that each segment of the top cover is operable by a single person. However, operating all the top cover segments for a grain loading takes a long auxiliary time, thus further affecting the transportation efficiency. In addition, the operator needs to open and close the above mentioned top cover structure on the car roof, and improper operation will cause personal injury.Summary of the Invention

[0004] An object of the present invention is to provide a translation type top cover of a grain hopper car, which solves the problem of time-consuming and laborious operation for opening and closing the conventional top covers. The translation type top cover is used in cooperation with a loading opening of a car body, a transmission shaft is located inside the car body, and the cover body may be driven to rotate by the transmission shaft. The cover body is provided with a vertical locating device, a longitudinal locating device and a transverse locating device to ensure the safety and reliability of the top cover in the closed state. Two ends of the top cover are provided with air cylinders so that the top cover is opened pneumatically.

[0005] The object of the present invention is achieved by the following technical solution: A translation type top cover of a grain hopper car, includes a cover body located at a loading opening of a car body, wherein one side of the cover body is hinged to a crank throw, the crank throw is connected to a transmission shaft rotating in the car body, the other side of the cover body is hinged to a connecting lever, the connecting lever is hinged to the car body, and the transmission shaft is connected to a driving mechanism. The driving mechanism provides power to drive the transmission shaft to rotate, so that the crank throw rotates, and the connecting lever rotates synchronously to achieve the translation of a four-connecting-rod mechanism and the sliding opening and closing of the cover body at the loading opening.

[0006] Further, the cover body includes a cover body plate and a cover body beam which are welded together to form the cover body.

[0007] Further, the cover body is provided with a support, and the support is hinged to the crank throw and is used for transitional connection.

[0008] Further, the transmission shaft includes a plurality of segments, and two adjacent segments are connected through a coupling.

[0009] Further, the transmission shaft includes a hollow segment and a solid segment.

[0010] Further, the middle part of the transmission shaft is disposed on a split bearing seat in the car body, two ends of the transmission shaft are arranged on end bearing seats outside the car body, so as to achieve the rotary support installation of the transmission shaft by means of the bearing seats.

[0011] Further, a transverse limit member is provided at the loading opening of the car body to transversely limit and fasten the cover body in the closed state.

[0012] Further, the transverse limit member is a transverse locking base, the transverse locking base is provided with a locking groove, and a locking rod on the cover body fits into the locking groove.

[0013] Further, a longitudinal limit member is provided at the loading opening of the car body to longitudinally limit and fasten the cover body in the closed state.

[0014] Further, the longitudinal limit member is a longitudinal stopping block.

[0015] Further, a lever stopping block is provided on the car body, the lever stopping block is located at the opening position of the connecting lever and supports and limits the connecting lever in the closed state.

[0016] Further, the transmission shaft is connected to a rocker arm, the rocker arm is hinged to a telescopic member, the telescopic member is hinged to the car body, the swing and rotation of the rocker arm are achieved by means of the hinged telescopic member, and the transmission shaft is driven to rotate synchronously.

[0017] Further, the telescopic member is a self-locking air cylinder.

[0018] The beneficial effects of the present invention are as follows: 1. Providing the top cover convenient to operate, so as to solve the problems of low working efficiency and operation with poor safety in the prior art. 2. When the top cover is in the closed state, the self-locking air cylinder guarantees its vertical locking capacity, the longitudinal stopping block guarantees its longitudinal locking capacity, and the locking base and the locking rod guarantee its transverse locking capacity. 3. The four-connecting-rod mechanism is formed among the car body, the crank throw, the connecting lever and the cover body to achieve translational opening and closing of the cover body and reduce space required.

[0019] The aforementioned main solution of the present invention and further alternatives thereof may be combined arbitrarily to form a plurality of solutions, all of which may be adopted and claimed in the present invention; and each alternative can be arbitrarily combined with other compatible alternatives according to the present invention. Multiple combinations are clear to those skilled in the art based on the prior art and the common knowledge after understanding the solutions of the present invention, all of which are technical solutions to be protected by the present invention and are not exhaustive here.Brief Description of the Drawings

[0020] FIG. 1 is a front view of a structure according to the present invention. FIG. 2 is a top view of the structure according to the present invention. FIG. 3 is a side view of the structure according to the present invention (in the closed state). FIG. 4 is a side view of the structure according to the present invention (in the open state). FIG. 5 is a partial schematic diagram of a split bearing seat according to the present invention. FIG. 6 is a partial schematic diagram of a transverse locking base according to the present invention. FIG. 7 is a partial schematic diagram of a longitudinal stopping block according to the present invention.

[0021] Numerals in the figures: 1. cover body, 2. transmission shaft, 3. bearing support, 4. split bearing seat, 5. end bearing seat, 6. longitudinal stopping block, 7. transverse locking base, 8. lever stopping block, 9. self-locking air cylinder, 11. connecting lever, 12. crank throw, 13. rocker arm.Detailed Description of Embodiments

[0022] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0023] Referring to FIG. 1 to FIG. 7, there is shown a translation type top cover of a grain hopper car, which includes a cover body 1, a transmission shaft 2, a bearing support 3, a split bearing seat 4, an end bearing seat 5, a longitudinal stopping block 6, a transverse locking base 7, a lever stopping block 8, a self-locking air cylinder 9, a connecting lever 11, a crank throw 12 and a rocker arm 13.

[0024] The cover body 1 is located at a loading opening of a car body. The cover body at the loading opening may be opened or closed to achieve loading or sealing. The cover body 1 is formed by welding a cover body plate and a cover body beam together, a support is disposed on the cover body 1, and the support is hinged to the crank throw 12. The cover body adopts a profiled structure to reduce the available surface of the cover body and increase the stiffness thereof.

[0025] One side of the cover body 1 is hinged to the crank throws 12 (seven on the car body and two outside the car), the crank throws 12 are connected to the transmission shaft 2 rotating in the car body, the other side of the cover body 1 is hinged to the connecting lever 11, the connecting lever 11 is hinged to the car body, so that a four-connecting-rod mechanism is formed among the car body, the crank throws, the connecting lever and the cover body to achieve translation of the upper cover body 1, and the required overall installation space is reduced and the applicability is improved with the built-in arrangement of the transmission shaft 2.

[0026] The transmission shaft 2 includes a plurality of segments, and two adjacent segments are connected through a coupling for installation of the transmission shaft in the longitudinal span of the overall car body. The transmission shaft 2 includes a hollow segment and a solid segment, which maintain the structural strength and cut down materials.

[0027] The middle part of the transmission shaft 2 is disposed on the split bearing seat 4 in the car body, two ends of the transmission shaft 2 are arranged on the end bearing seats 5 outside the car body, so as to achieve the rotary installation of the transmission shaft 2 by means of the split bearing seat 4 and the end bearing seats 5. The bearing seats and the crank throw adopt split structures, which are convenient for disassembly and maintenance of the transmission shaft.

[0028] The bearing seats adopt split bearings, and nylon shaft sleeves are provided in the bearings for wear resistance and lubrication. Each of the end bearing seats is composed of a bearing cap, a rubber gasket and a deep groove ball bearing with a sealing ring, and the rain-proof and dust-proof functions of the ends are achieved by means of a labyrinth structure, the sealing ring and the gasket.

[0029] The split bearing seat 4 is installed on the bearing support 3, and the bearing support 3 is fixed on the side wall beam. The support is provided with an oblong hole to be directly connected to the split bearing seat by means of a bolt, and an adjustment shim is provided to achieve longitudinal and vertical adjustment.

[0030] A transverse limit member and a longitudinal limit member are arranged at the loading opening of the car body. The longitudinal, transverse and vertical locking functions are achieved by means of the longitudinal stopping block, the transverse locking base and the self-locking air cylinder.

[0031] The transverse limit member is the transverse locking base 7, the transverse locking base 7 is provided with a locking groove, and a locking rod on the cover body 1 fits into the locking groove to guarantee the transverse locking capacity of the top cover in the closed state. The longitudinal limit member is the longitudinal stopping block 6, and the longitudinal stopping block guarantees the longitudinal locking capacity of the top cover in the closed state.

[0032] The lever stopping block 8 is provided on the car body, the lever stopping block 8 is located at the opening position of the connecting lever 11 and used to limit the connecting lever. When the cover body is in the open state, the connecting lever is placed on the lever stopping block to limit the four-connecting-rod mechanism.

[0033] The transmission shaft 2 is connected to a driving mechanism. The driving mechanism includes the rocker arm 13 and a telescopic member, the transmission shaft 2 is connected to the rocker arm 13, the rocker arm 13 is hinged to the telescopic member, the telescopic member is hinged to the car body, and the telescopic member is a self-locking air cylinder 9. The self-locking air cylinder provides driving force to drive the rocker arm to rotate and achieve the rotation of the transmission shaft. The self-locking air cylinder guarantees the vertical locking capacity of the top cover in the closed state.

[0034] The aforementioned basic example of the present invention and its further selection examples can be arbitrarily combined to form multiple embodiments, which can be adopted and claimed by the present invention. In the solutions of the present invention, each selection example can be arbitrarily combined with any other basic example and selection example.

[0035] All above are only preferred embodiments of the present invention, which do not limit the scope of the present invention. All alterations, equivalent replacements and improvements, without departing from the spirit and principle of the present invention, shall fall into the protection scope of the present invention.

Claims

1. A translation type top cover of a grain hopper car, comprising a cover body (1) located at a loading opening of a car body, and characterized in that one side of the cover body (1) is hinged to a crank throw (12), the crank throw (12) is connected to a transmission shaft (2) rotating in the car body, the other side of the cover body (1) is hinged to a connecting lever (11), the connecting lever (11) is hinged to the car body, and the transmission shaft (2) is connected to a driving mechanism.

2. The translation type top cover of a grain hopper car according to claim 1, characterized in that the transmission shaft (2) comprises a plurality of segments, and two adjacent segments are connected through a coupling.

3. The translation type top cover of a grain hopper car according to claim 1 or 2, characterized in that the transmission shaft (2) comprises a hollow segment and a solid segment.

4. The translation type top cover of a grain hopper car according to claim 1, characterized in that the middle part of the transmission shaft (2) is disposed on a split bearing seat (4) in the car body, and two ends of the transmission shaft (2) are arranged on end bearing seats (5) outside the car body.

5. The translation type top cover of a grain hopper car according to claim 1, characterized in that a transverse limit member is provided at the loading opening of the car body.

6. The translation type top cover of a grain hopper car according to claim 5, characterized in that the transverse limit member is a transverse locking base (7), the transverse locking base (7) is provided with a locking groove, and a locking rod on the cover body (1) fits into the locking groove.

7. The translation type top cover of a grain hopper car according to claim 1, characterized in that a longitudinal limit member is provided at the loading opening of the car body.

8. The translation type top cover of a grain hopper car according to claim 7, characterized in that the longitudinal limit member is a longitudinal stopping block (6).

9. The translation type top cover of a grain hopper car according to claim 1, characterized in that a lever stopping block (8) is provided on the car body, and the lever stopping block (8) is located at the opening position of the connecting lever (11).

10. The translation type top cover of a grain hopper car according to claim 1, characterized in that the transmission shaft (2) is connected to a rocker arm (13), the rocker arm (13) is hinged to a telescopic member, and the telescopic member is hinged to the car body.

Images