Carriage tail door device of mine car and mine car

Abstract

The invention provides a compartment tail door device of a mine car and the mine car, and the compartment tail door device comprises a tail plate, the bottom of which is rotatably connected to the tail part of a compartment bottom plate of the mine car; the locking mechanism comprises a baffle, a first pull rope, a rotating mechanism and a limiting plate, the rotating mechanism comprises a rotating part and a fixing part, the rotating part is rotatably connected to the fixing part, the fixing part is connected to the tail of the bottom plate of the tramcar compartment, the baffle is connected to one side of the rotating part, and the limiting plate is connected to the other side of the rotating part; one end of the first pull rope is connected to a frame of the mine car carriage, and the other end is connected to the rotating part. According to the compartment tail door device, the bottom of the tail plate is rotationally connected to the bottom plate, and the compartment tail door device is controlled through the locking mechanism, so that the situation that the tail plate swings in the discharging process is avoided, and the problems that in the prior art, the discharging work is affected due to swinging of the tail plate, and the maintenance and repair cost is high are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of transport vehicles, and in particular to a tailgate device of a mine car and a mine car. Background Art

[0002] Mine cars are commonly used by steel production companies to transport ore raw materials. In order to improve production efficiency and reduce labor intensity, most production companies use self-unloading mine cars to transport raw materials. Self-unloading mine cars use a lifting mechanism to lift the front of the car to tilt the car. Under the action of gravity, the raw materials slide out of the car from the discharge port at the rear of the car, realizing automatic unloading. However, in order to ensure that the mine car can be fully loaded, a tailgate needs to be installed on the discharge port, which will inevitably affect the automatic unloading of the mine car.

[0003] To this end, the prior art proposes an automatic opening and closing device for the tailgate of a dump truck (CN 202518148 U), comprising a frame, a tiltable and liftable carriage installed on the frame, a tailgate installed on the carriage in a hinged manner, a first ear plate installed on the frame, a second ear plate installed on the carriage, a hinged portion at one end of the locking plate hinged with the second ear plate, and a locking portion at the other end forms an opening and closing match with the tailgate, a raised portion is provided in the middle of the locking plate, and the raised portion is connected to the first ear plate by an iron chain. The invention provides an automatic opening and closing device for the tailgate of a dump truck, which can realize the automatic opening of the tailgate by gravity, and can be automatically closed by an iron chain after unloading. No manual operation is required, and it is easy to use.

[0004] Although the mine car can be fully loaded and automatically unloaded through the above-mentioned existing technology, when the locking plate releases the lock on the rear baffle, the rear baffle is rotatably connected to the top of the car, so the rear baffle is bound to swing and collide with the ore raw materials sliding out of the unloading port, thereby affecting the unloading of the mine car; in addition, due to the swinging of the rear baffle, the friction at the connection between the rear baffle and the top of the car is increased, making the connection easy to be damaged, thereby increasing the maintenance cost of the mine car.

[0005] Based on this, the existing technology needs to be further improved. Summary of the invention

[0006] To solve the above technical problems, the embodiment of the present disclosure provides a tailgate device for a mine car, comprising: a tail plate, the bottom of which is rotatably connected to the tail of the mine car floor; a locking mechanism, the locking mechanism comprising a baffle, a first pull rope, a rotating mechanism and a limiting plate, the rotating mechanism comprising a rotating part and a fixed part, the rotating part is rotatably connected to the fixed part, the fixed part is connected to the tail of the mine car floor, the baffle is connected to one side of the rotating part, the limiting plate is connected to the other side of the rotating part opposite to the baffle, one end of the first pull rope is connected to the frame of the mine car, and the other end is connected to the rotating part; a second pull rope, the second pull rope includes two, one end of the second pull rope is connected to the frame of the mine car, and the other end is connected to the rotating part; a second pull rope One end of the tail plate, the other end of which is connected to the top end of the tail of a side panel of the mine car compartment, one end of another second pull rope is connected to the other end of the tail plate, and the other end of another second pull rope is connected to the top end of the tail of the other side panel of the mine car compartment; wherein, under the action of the lifting mechanism of the mine car, the first pull rope is in a tensioned or relaxed state, so as to abut the baffle against the tail plate and make the tail plate block the unloading port formed by the tail of the mine car compartment floor plate and the tail of the two mine car compartment side panels, or turn the baffle away from the tail plate and turn the tail plate away from the unloading port to open the unloading port, and make the limit plate abut against the bottom of the mine car compartment floor plate, so that the maximum angle of rotation of the baffle on the mine car compartment floor plate is 90 degrees.

[0007] In some embodiments, the fixed part includes two ear plates, and the rotating part includes a pin shaft and a connecting rod. The two ear plates are connected to the tail of the mine car car floor, and the two ends of the pin shaft are rotatably connected to the two ear plates respectively. One end of the connecting rod is connected to the pin shaft, and the other end is connected to the baffle. One end of the limit plate is connected to the other side of the pin shaft opposite to the connecting rod. The two ear plates, the tail of the mine car car floor and the pin shaft form a hole, and the other end of the first pull rope passes through the hole and is connected to the connecting rod.

[0008] In some embodiments, the rotating mechanism further includes a reinforcing rod, one end of which is connected to a side wall of the baffle away from the tail plate, and the other end of which is connected to the connecting rod.

[0009] In some embodiments, the bottom of the tailgate is rotatably connected to the tail of the mine car floor via a damping shaft.

[0010] In some embodiments, the damping shaft includes a plurality of damping shafts.

[0011] In some embodiments, the locking mechanism comprises two.

[0012] In some embodiments, the vehicle tailgate device further comprises a transverse plate, one end of which is connected to the baffle plate of one locking mechanism, and the other end of which is connected to the baffle plate of another locking mechanism.

[0013] In some embodiments, the first pull rope includes a first chain.

[0014] In some embodiments, the second pull cord comprises a second chain.

[0015] On the other hand, the disclosed embodiment further provides a mine car, comprising: a lifting mechanism, a mine car carriage and a frame, and the above-mentioned mine car carriage tailgate device.

[0016] According to the above technical scheme, the present disclosure provides a carriage tailgate device of a mine car and a mine car. The carriage tailgate device avoids the swinging of the tailgate during the unloading process by rotating the bottom of the tailgate to the bottom plate and relying on the control of the locking mechanism and the second pull rope, thereby solving the problems of the swinging of the tailgate in the prior art that affect the unloading work and high maintenance and repair costs; at the same time, during the unloading process, the tailgate also serves as a unloading channel, reducing the height of the free fall of the raw materials during the unloading process, and to a certain extent avoiding the safety problems caused by the splashing of the raw materials during the unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a side view of a mine car in a discharging state according to an embodiment of the present disclosure; Figure 2 is a front view of the rear of a mine car compartment when the discharge port is closed according to an embodiment of the present disclosure; Figure 3 yes Figure 1 A node enlarged view; Figure 4 It is a side view of the rear part of the mine car compartment when the discharge port is closed according to an embodiment of the present disclosure.

[0019] Description of reference numerals: 1. Tail plate; 2. Mine car bottom plate; 3. Baffle; 4. First pull rope; 5. Limit plate; 6. Frame; 7. Second pull rope; 8. Side plate; 9. Lifting mechanism; 10. Ear plate; 11. Pin shaft; 12. Connecting rod; 13. Hole; 14. Reinforcement rod; 15. Cross plate. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0021] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0022] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0024] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0025] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0027] As mentioned in the background technology above, although the mine car can achieve both full loading and automatic unloading through the existing technology, when the locking plate releases the lock on the rear baffle, the rear baffle is connected to the top of the car body by rotation, so the rear baffle is bound to swing, and will collide with the ore raw materials that slide out of the discharge port, thereby affecting the unloading of the mine car; in addition, due to the swing of the rear baffle, the friction between the rear baffle and the top of the car body will increase, making the connection easy to damage, thereby increasing the maintenance and repair costs of the mine car. To this end, the inventor of the present application provides a car body tailgate device and a mine car in one or more embodiments. The car body tailgate device avoids the swing of the tail plate during the unloading process by rotating the bottom of the tail plate to the bottom plate, and relying on the control of the locking mechanism and the second pull rope, thereby solving the problem of affecting the unloading work and the high maintenance and repair costs caused by the swing of the tail plate in the existing technology. It is believed that it can solve one or more problems in the existing technology.

[0028] In view of the above-mentioned technical problems, the present invention provides a tailgate device for a mine car, such as Figure 1-Figure 4As shown, it includes: a tail plate 1, the bottom of the tail plate 1 is rotatably connected to the tail of the bottom plate 2 of the mine car; a locking mechanism, the locking mechanism includes a baffle 3, a first pull rope 4, a rotating mechanism and a limiting plate 5, the rotating mechanism includes a rotating part and a fixed part, the rotating part is rotatably connected to the fixed part, the fixed part is connected to the tail of the bottom plate 2 of the mine car, the baffle 3 is connected to one side of the rotating part, the limiting plate 5 is connected to the other side of the rotating part opposite to the baffle 3, one end of the first pull rope 4 is connected to the frame 6 of the mine car, and the other end is connected to the rotating part; a second pull rope 7, the second pull rope 7 includes two, one end of a second pull rope 7 is connected to one end of the tail plate 1, and the other end is connected to the mine car. On the top end of the tail of one side panel 8 of the mine car compartment, one end of another second pull rope 7 is connected to the other end of the tail plate 1, and the other end thereof is connected to the top end of the tail of the other side panel 8 of the mine car compartment; wherein, the first pull rope 4 is in a tensioned or relaxed state under the action of the lifting mechanism 9 of the mine car, so as to abut the baffle 3 against the tail plate 1 and make the tail plate 1 block the unloading port formed by the tail of the mine car compartment floor plate 2 and the tail of the two mine car compartment side panels 8, or turn the baffle 3 away from the tail plate 1 and turn the tail plate 1 away from the unloading port to open the unloading port, and make the limit plate 5 abut on the bottom of the mine car compartment floor plate 2, so that the maximum angle of rotation of the baffle 3 on the mine car compartment floor plate 2 is 90 degrees.

[0029] Specifically, when the lifting mechanism 9 of the mine car is in a non-working state, that is, the mine car compartment is in a flat state, the first pull rope 4 is in a tensioned state, and the baffle 3 can apply a thrust to the tail plate 1 under the action of the tension of the first pull rope 4, and the thrust is directed to one side of the compartment. Under the action of the thrust, the two ends of the tail plate 1 are respectively abutted against the tails of the two side plates 8 of the compartment, thereby blocking the discharge port to achieve full loading of the mine car compartment. At this time, the second pull rope 7 is in a relaxed state; when unloading is required, the lifting mechanism 9 The front end of the carriage is slowly lifted, and the rear end of the carriage rotates clockwise on the frame 6, thereby causing the distance between the connection point of the first pull rope 4 and the frame 6 and the first pull rope 4 and the rotating part to become smaller, so that the first pull rope 4 is in a relaxed state, and the thrust of the baffle 3 on the tail plate 1 is released. As the front part of the carriage is lifted, the mine car carriage tilts, and the raw materials in the mine car carriage generate lateral thrust on the tail plate 1 under the action of gravity. Under the action of the lateral thrust, the tail plate 1 and the baffle 3 rotate clockwise, thereby opening the discharge port to complete the unloading. When the baffle 3 rotates 90 degrees on the mine car compartment bottom plate 2, the limit plate 5 abuts against the lower surface of the mine car compartment bottom plate 2, so that the baffle 3 can no longer rotate. At this time, the tail plate 1 and the mine car compartment bottom plate 2 are in the same plane (inclined surface), and under the action of the lever principle (after the limit plate 5 abuts against the mine car compartment bottom plate 2, the raw material flows through the tail plate 1 to generate pressure on the push plate, and at the same time, the mine car compartment bottom plate 2 generates thrust on the limit plate 5, and the fulcrum is at the rotating part, thereby forming a lever effect), the baffle 3 applies a supporting force to the tail plate 1, and at the same time, the second pull rope 7 is in a tensioned state, and the second pull rope 7 applies a pulling force to the tail plate 1, and the raw material is discharged from the discharge port through the tail plate 1. During the unloading process, the tail plate 1 will not swing on the bottom plate 2 of the mine car due to the supporting force of the baffle 3 and the pulling force of the second pull rope 7. At the same time, the tail plate 1 also serves as a unloading channel, reducing the height of the free fall of raw materials during the unloading process, and to a certain extent avoiding the safety problems caused by the splashing of raw materials during the unloading process.

[0030] Compared with the prior art, the tailgate device of a mine car in the present application avoids the swinging of the tailgate 1 during the unloading process by rotating the bottom of the tailgate 1 to the bottom plate and relying on the control of the locking mechanism and the second pull rope 7, thereby solving the problems in the prior art of affecting the unloading work and high maintenance costs caused by the swinging of the tailgate 1; at the same time, during the unloading process, the tailgate 1 also serves as a unloading channel, reducing the height of the free fall of raw materials during the unloading process, and to a certain extent avoiding the safety problems caused by the splashing of raw materials during the unloading process.

[0031] In some embodiments, Figure 2As shown, the fixed part includes two ear plates 10, the rotating part includes a pin 11 and a connecting rod 12, the two ear plates 10 are connected to the tail of the mine car compartment bottom plate 2, the two ends of the pin 11 are rotatably connected to the two ear plates 10, one end of the connecting rod 12 is connected to the pin 11, and the other end is connected to the baffle 3, one end of the limit plate 5 is connected to the other side of the pin 11 opposite to the connecting rod 12, the two ear plates 10, the tail of the mine car compartment bottom plate 2 and the pin 11 are surrounded to form a hole 13, and the other end of the first pull rope 4 passes through the hole 13 and is connected to the connecting rod 12. Through the two ear plates 10, the pin 11 and the connecting rod 12, the baffle 3 is rotatably connected to the mine car compartment bottom plate 2. Furthermore, the limit plates 5 include two limit plates 5, which are hoisted on the pin shaft 11 with a gap therebetween. When the first pull rope 4 is in a relaxed state, the first pull rope 4 passes through the gap, thus avoiding the problem that the first pull rope is placed between the limit plates 5 and the bottom plate 2 of the mine car and is squeezed by both.

[0032] In some embodiments, Figure 2 and Figure 4 As shown, the rotating mechanism further includes a reinforcing rod 14, one end of which is connected to the side wall of the baffle 3 away from the tail plate 1, and the other end is connected to the connecting rod 12. The structural strength of the baffle 3 is enhanced by the reinforcing rod 14, thereby ensuring structural safety.

[0033] In some embodiments, the bottom of the tailgate 1 is rotatably connected to the tail of the mine car compartment floor 2 via a damping shaft (not shown in the figure). The damping shaft can slow down the rotation speed of the tailgate 1 during unloading, thereby ensuring production safety. Specifically, a friction damping shaft can be used, which is a prior art and will not be described in detail here.

[0034] In some embodiments, the damping shaft includes a plurality of damping shafts. Specifically, the plurality of damping shafts can be arranged at equal intervals, and the plurality of damping shafts ensure the stability of the tailgate 1 rotating on the bottom plate 2 of the mine car.

[0035] In some embodiments, the locking mechanisms include two, and the stability of the overall force-bearing structure is increased by the two locking mechanisms.

[0036] In some embodiments, Figure 2 As shown, the vehicle tailgate device further includes a transverse plate 15, one end of which is connected to the baffle 3 of one locking mechanism, and the other end is connected to the baffle 3 of another locking mechanism. The transverse plate 15 increases the force bearing area of ​​the baffle 3 exerting thrust on the tailgate 1, further ensuring the safety of the structural system.

[0037] In some embodiments, the first pull rope 4 includes a first iron chain.

[0038] In some embodiments, the second pull rope 7 comprises a second iron chain.

[0039] The present invention also provides a mine car, comprising: a lifting mechanism 9, a mine car compartment and a frame 6, and the above-mentioned mine car compartment tailgate device.

[0040] In summary, the present disclosure provides a tailgate device for a mine car and a mine car. The tailgate device for the mine car avoids the swinging of the tailgate 1 during the unloading process by rotating the bottom of the tailgate 1 to the bottom plate and relying on the control of the locking mechanism and the second pull rope 7, thereby solving the problem of affecting the unloading work and high maintenance cost caused by the swing of the tailgate 1 in the prior art; at the same time, during the unloading process, the tailgate 1 also serves as a unloading channel, reducing the height of the free fall of raw materials during the unloading process, and to a certain extent avoiding the safety problem caused by the splashing of raw materials during the unloading process; the baffle 3 is rotatably connected to the bottom plate 2 of the mine car through two ear plates 10, a pin shaft 11 and a connecting rod 12; the rotation speed of the tailgate 1 during unloading can be slowed down by the damping shaft to ensure production safety; the force bearing area of ​​the thrust applied by the baffle 3 to the tailgate 1 is increased by the cross plate 15, further ensuring the safety of the structural system.

[0041] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0042] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A tailgate device for a mine car, characterized in that: include: A tail plate (1), the bottom of the tail plate (1) being rotatably connected to the tail of a mine car compartment bottom plate (2); A locking mechanism, the locking mechanism comprising a baffle (3), a first pull rope (4), a rotating mechanism and a limit plate (5), the rotating mechanism comprising a rotating part and a fixed part, the rotating part being rotatably connected to the fixed part, the fixed part being connected to the tail of the mine car compartment bottom plate (2), the baffle (3) being connected to one side of the rotating part, the limit plate (5) being connected to the other side of the rotating part opposite to the baffle (3), one end of the first pull rope (4) being connected to the frame (6) of the mine car compartment, and the other end being connected to the rotating part; A second pull rope (7), wherein the second pull rope (7) comprises two second pull ropes, one end of one of the second pull ropes (7) being connected to one end of the tail plate (1), and the other end of the second pull rope (7) being connected to the top end of the tail portion of one side plate (8) of the mine car compartment, and one end of the other second pull rope (7) being connected to the other end of the tail plate (1), and the other end of the second pull rope (7) being connected to the top end of the tail portion of another side plate (8) of the mine car compartment; Wherein, the first pull rope (4) is in a tensioned or relaxed state under the action of the lifting mechanism (9) of the mine car, so as to make the baffle (3) abut against the tail plate (1) and make the tail plate (1) block the discharge port formed by the tail of the mine car compartment floor plate (2) and the tail of the two side plates (8) of the mine car compartment, or to turn the baffle (3) away from the tail plate (1) and turn the tail plate (1) away from the discharge port to open the discharge port, and make the limit plate (5) abut against the bottom of the mine car compartment floor plate (2), so that the maximum angle of rotation of the baffle (3) on the mine car compartment floor plate (2) is 90 degrees.

2. The tailgate device of a mining vehicle according to claim 1, characterized in that: The fixed part comprises two ear plates (10), and the rotating part comprises a pin shaft (11) and a connecting rod (12). The two ear plates (10) are connected to the rear end of the mine car compartment bottom plate (2), and the two ends of the pin shaft (11) are rotatably connected to the two ear plates (10), one end of the connecting rod (12) is connected to the pin shaft (11), and the other end is connected to the baffle (3). One end of the limit plate (5) is connected to the other side of the pin shaft (11) opposite to the connecting rod (12). The two ear plates (10), the rear end of the mine car compartment bottom plate (2) and the pin shaft (11) enclose a hole (13), and the other end of the first pull rope (4) passes through the hole (13) and is connected to the connecting rod (12).

3. The tailgate device of a mine car according to claim 2, characterized in that: The rotating mechanism further comprises a reinforcing rod (14), one end of the reinforcing rod (14) being connected to a side wall of the baffle (3) away from the tail plate (1), and the other end of the reinforcing rod (14) being connected to the connecting rod (12).

4. The tailgate device of a mining vehicle according to claim 1, characterized in that: The bottom of the tail plate (1) is rotatably connected to the tail of the mine car compartment bottom plate (2) via a damping shaft.

5. The tailgate device of a mining vehicle according to claim 4, characterized in that: The damping shaft includes a plurality of damping shafts.

6. The tailgate device of a mining vehicle according to claim 1, characterized in that: The locking mechanism comprises two.

7. The tailgate device of a mining vehicle according to claim 6, characterized in that: The vehicle tailgate device further comprises a transverse plate (15), one end of the transverse plate (15) being connected to a baffle plate (3) of one locking mechanism, and the other end of the transverse plate (15) being connected to a baffle plate (3) of another locking mechanism.

8. The tailgate device of a mining vehicle according to claim 1, characterized in that: The first pull rope (4) comprises a first iron chain.

9. The tailgate device of a mining vehicle according to claim 1, characterized in that: The second pull rope (7) comprises a second iron chain.

10. A mining car, characterized in that: include: A lifting mechanism (9), a mine car carriage and a frame (6), and a mine car carriage tailgate device according to any one of claims 1 to 9.

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