CN110539772B - Automatic hooking and unhooking mechanism, automatic hooking and unhooking device of mine car and mine car - Google Patents
Automatic hooking and unhooking mechanism, automatic hooking and unhooking device of mine car and mine car Download PDFInfo
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- CN110539772B CN110539772B CN201910905295.XA CN201910905295A CN110539772B CN 110539772 B CN110539772 B CN 110539772B CN 201910905295 A CN201910905295 A CN 201910905295A CN 110539772 B CN110539772 B CN 110539772B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 47
- 230000000670 limiting effect Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 3
- 238000007665 sagging Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 ore Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/04—Coupling or uncoupling by means of trackside apparatus
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Abstract
The invention relates to the technical field of mining machinery, in particular to an automatic hooking and unhooking mechanism, which comprises a first connecting frame and a hook head, wherein a lock cavity is arranged in the first connecting frame, a first side part of the lock cavity is hinged with a first hooking lock, the first hooking lock is arranged into a fan-shaped cylinder, an arc surface matched with the arc surface of the first hooking lock is arranged on the hook head, and a limiting baffle for limiting the hook head is also arranged in the lock cavity; the fan-shaped column body is connected with an elastic rotary reset component, a hook groove is formed in the arc edge of the lower portion of the fan-shaped column body, and the outer end of the hook groove is limited by a second pin shaft fixedly connected to the first connecting frame; the inner end of the unhooking handle is fixedly connected with the rotation center of the fan-shaped cylinder of the first hook lock, and the outer end of the unhooking handle is matched with the unhooking component; an automatic hooking and unhooking device of a mine car comprises the automatic hooking and unhooking mechanism; a mine car comprises the automatic hooking and unhooking device of the mine car. The invention has the advantages of ingenious design, simple structure, convenient manufacture and reliable automatic connection.
Description
Technical Field
The invention relates to the technical field of mining machinery, in particular to an automatic hooking and unhooking mechanism, an automatic hooking and unhooking device for a mine car and the mine car.
Background
Mine cars are narrow-gauge rail transit vehicles for transporting bulk materials such as coal, ore, waste rock and the like in mines, and are generally towed by locomotives or winches. The existing hook unhooking mechanism of the mine car is mainly a bolt type, and firstly, the degree of automation is not high; secondly, the working environment of the mine car comprises curves and slopes, especially the mine car working underground, the working environment is worse, and severe vibration can possibly disconnect the bolt locking mechanism, so that the connection is invalid, the production is influenced, and the casualties can be caused; thirdly, the existing hook unhooking mechanisms are complex in structure and high in manufacturing cost.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides an automatic hooking and unhooking mechanism, an automatic hooking and unhooking device of a mine car and the mine car, which are ingenious in design, simple in structure, convenient to manufacture and reliable in connection, and can automatically hook and unhook.
In order to achieve the purpose of the invention, the technical scheme of the invention is as follows:
the automatic hooking and unhooking mechanism comprises a first connecting frame, wherein a lock cavity is arranged in the first connecting frame, a first hook lock is hinged to the first side part of the lock cavity, the first hook lock is arranged into a fan-shaped cylinder, a hook head is connected in the lock cavity in a matched manner, an arc-shaped surface matched with the arc-shaped surface of the first hook lock is arranged on the hook head, and a limit baffle for limiting the hook head is further arranged in the lock cavity; the fan-shaped column body is connected with an elastic rotary reset component, a hook groove is formed in the arc edge of the lower portion of the fan-shaped column body, and the outer end of the hook groove is limited by a second pin shaft fixedly connected to the first connecting frame; the inner end of the unhooking handle is fixedly connected with the rotation center of the fan-shaped cylinder of the first hook lock, and the outer end of the unhooking handle is matched with the unhooking component. When the hook head contacts the limit baffle, the first hook lock resets under the action of the elastic rotary reset component to automatically lock the hook head; when the unhooking component pushes the unhooking handle to rotate outwards, the unhooking handle drives the first hook lock to rotate outwards, and the lock cavity opens the hook head to automatically unhook.
According to the automatic hooking and unhooking mechanism, a second side part of the lock cavity is provided with a second hooking lock which is identical to the first hooking lock in structure, the hook head is provided with an arc surface which is matched with the arc surfaces of the first hooking lock and the second hooking lock, the first hooking lock is connected with a first driven gear, the second hooking lock is connected with a second driven gear, the first driven gear is meshed with a first transmission gear, the second driven gear is meshed with a second transmission gear, and the first transmission gear is meshed with the second transmission gear.
According to the automatic hooking and unhooking mechanism, the elastic rotation reset assembly comprises a reset plate, a reset spring and a first pin shaft, wherein the reset plate is connected to the outer end of the arc-shaped edge of the fan-shaped cylinder and is connected with one end of the reset spring, the other end of the reset spring is connected with the first pin shaft, the first pin shaft is fixedly connected to the middle of the first connecting frame, and when the first hook lock rotates outwards, the reset spring is stretched.
According to the automatic hooking and unhooking mechanism, the unhooking assembly comprises a unhooking rod and a unhooking baffle plate, the outer end of the unhooking handle extends out of the side wall of the first connecting frame, the unhooking rod is hinged on the side wall of the first connecting frame through a fifth pin shaft, and the upper end of the unhooking rod rotates when the lower end of the unhooking rod touches the unhooking baffle plate, so that the unhooking handle is driven to rotate.
According to the automatic hooking and unhooking mechanism, the fan-shaped side wall of the fan-shaped column body is arranged in an arc shape in the vertical direction.
According to the automatic hooking and unhooking mechanism, the first connecting frame is a box body consisting of a first upper plate, a first lower plate and two first side plates, guide baffles are further arranged on two sides of an inlet of the lock cavity, hook head guide inclined planes are arranged on the first upper plate, the first lower plate and the guide baffles, and the edge of the end face of each hook head is in arc transition.
According to the automatic hooking and unhooking mechanism, a polygonal guide hole is formed in the first upper plate, a guide pressure rod is connected in the guide hole in a sliding mode, a shaft shoulder is arranged on the guide pressure rod, a compression spring is sleeved on the guide pressure rod on the upper portion of the shaft shoulder, the upper end of the compression spring is limited by a limiting orifice plate fixedly connected to the first upper plate, the shaft shoulder is clamped on the upper portion of the first upper plate, and the guide pressure rod on the lower portion of the shaft shoulder extends out of the inner side of the guide hole and can be pressed on a hook head, and a hook head guide inclined plane is arranged on the lower portion of the guide pressure rod.
An automatic hooking and unhooking device for a mine car comprises two automatic hooking and unhooking mechanisms and a second connecting frame, wherein the first automatic hooking and unhooking mechanism is connected to the rear part of a front section carriage of the mine car, the second automatic hooking and unhooking mechanism is connected to the front part of a rear section carriage of the mine car, and hook heads in the two automatic hooking and unhooking mechanisms are connected into a whole through a hook handle; the first end of the second connecting frame is hinged with the mine car through a third pin shaft, and the second connecting frame is also connected with the mine car through a second elastic element, so that the second connecting frame can restore balance after rotating relative to the mine car; the second end of the second connecting frame is hinged with the first connecting frame through a fourth pin shaft, the second connecting frame is further connected with the first connecting frame through a first elastic element, so that the balance of the first connecting frame can be restored after the first connecting frame rotates relative to the second connecting frame, and the third pin shaft is vertically arranged relative to the fourth pin shaft.
According to the automatic hooking and unhooking device of the mine car, the first end part of the second connecting frame is hinged with the mine car through a vertical third pin shaft, the second elastic element comprises second buffer springs arranged at the left side and the right side of the third pin shaft, one end of each second buffer spring is connected with the mine car, the other end of each second buffer spring is fixedly sleeved on a second guide pin shaft on the second connecting frame, and the second buffer springs are used for keeping left and right balance of the automatic hooking and unhooking device of the mine car; the second connecting frame is hinged with the first connecting frame through a transverse fourth pin shaft, the first elastic element comprises a plurality of first buffer springs, a first guide pin shaft connected to the upper end of the second connecting frame and a third guide pin shaft connected to the side portion of the first connecting frame, one end of each first buffer spring is fixedly sleeved on the corresponding first guide pin shaft, the other end of each first buffer spring is fixedly sleeved on the corresponding third guide pin shaft, and the first buffer springs are used for keeping the upper balance and the lower balance of the automatic hooking and unhooking device of the mine car.
The automatic hooking and unhooking device for the mine car comprises a plurality of carriages and any one of the automatic hooking and unhooking devices for the mine car, and is connected between two adjacent carriages.
The automatic hooking and unhooking device for the mine car has the beneficial effects that:
1. the automatic hooking and unhooking mechanism skillfully sets the hook lock into a fan-shaped cylinder structure, so that the hook head presses the hook lock, the hook lock enters the lock cavity after rotating and automatically resets under the action of the reset spring, the hook head is locked, thereby realizing automatic hooking, and when the hook head pulls the hook lock outwards due to the arrangement of the second pin shaft, the hook lock cannot rotate inwards under the limiting action of the second pin shaft, so that the hook head is firmly locked, and the problem of loosening or unhooking caused by jolt vibration of the hook lock is avoided; when the mine car runs to the position of the unhooking baffle arranged above the track, the unhooking baffle keeps the lower end of the unhooking rod, so that the unhooking rod rotates around the fifth pin shaft, the upper end of the unhooking rod pushes the unhooking handle to rotate, the unhooking handle directly drives the first hook lock to rotate or drives the second hook lock to rotate through a gear transmission mechanism, so that the hook cavity is opened, and automatic unhooking is completed.
2. Under the guiding action of the two guide baffles, the first upper plate and the first lower plate, the hook head of the coupler contacts the hook lock, so that the automatic hooking process of the hook head is more reliable, and the hook head is not easy to be blocked;
3. the automatic hooking and unhooking mechanism can be provided with the hooking lock on one side of the lock cavity, and the advantage of the arrangement is that one hooking lock can be reduced, gears are not needed, the whole structure is simpler, and the manufacturing cost is lower;
4. the automatic hook unhooking mechanism is also provided with the guide compression bar for pressing the hook head in the lock cavity, so that the hook head can be prevented from sagging, and if the hook head sags, the hook head cannot be aligned with the inlet of the lock cavity, and the automatic hook cannot be realized;
5. the automatic hooking and unhooking device for the mine car can well solve the problems of turning, ascending and descending of the mine car by using the two-stage connecting structure of the first connecting frame and the second connecting frame, arranging the second elastic element between the second connecting frame and the mine car and arranging the first elastic element between the first connecting frame and the second connecting frame.
Drawings
FIG. 1 is a schematic diagram showing a front view of an automatic hooking and unhooking device for a mine car according to an embodiment of the invention.
Fig. 2 shows a schematic top view of an automatic hooking and unhooking mechanism according to an embodiment of the invention.
Fig. 3 shows a schematic left-view structure of an automatic hooking and unhooking mechanism according to an embodiment of the present invention.
Fig. 4 shows a schematic A-A sectional structure of fig. 1.
Fig. 5 shows a schematic view of the B-B cross-sectional structure of fig. 1.
Fig. 6 shows a schematic view of the C-C cross-sectional structure of fig. 1.
Fig. 7 shows a schematic view of the D-D cross-sectional structure of fig. 2.
Fig. 8 shows a schematic view of the E-E cross-sectional structure of fig. 2.
Fig. 9 is a schematic structural view showing the principle of the case that the hook head exits the automatic hook unhooking mechanism according to the embodiment of the present invention.
Fig. 10 is a schematic structural view showing the state where the hook head is locked by the automatic hooking and unhooking mechanism according to the embodiment of the present invention.
Fig. 11 is a schematic structural view showing the principle of the case where the hook head enters the automatic hooking and unhooking mechanism according to the embodiment of the present invention.
FIG. 12 is a schematic view showing the principle structure of the automatic hooking and unhooking device for mine cars according to the embodiment of the invention when the hook head is locked.
In the figure: 1 is the second upper plate, 2 is the second lower plate, 3 is the second side plate, 4 is the second side plate, 5 is the second guide pin, 6 is the second guide pin, 7 is the second buffer spring, 8 is the second buffer spring, 9 is the sealing cover, 11 is the first guide pin, 12 is the first guide pin, 13 is the third guide pin, 14 is the third guide pin, 15 is the first buffer spring, 16 is the first buffer spring, 20 is the return spring, 21 is the return spring, 22 is the return plate, 23 is the return plate, 24 is the second driven gear, 25 is the first pin, 26 is the second drive gear, 27 is the first pin, 28 is the first drive gear, 29 is the first driven gear, 31 is the limit baffle, 32 is the first side plate, 33 is the first side plate, 34 is the second hook lock, 35 is the first hook lock, 36 is the guide baffle, 37 is the hook head, 40 is the third pin, 41 is the limit pressure bar, 43 is the guide spring, 44 is the compression spring, 45 is the first lower plate, 45 is the first pin, 46 is the fourth pin, 48 is the fourth hook pin, 52 is the fifth hook, 52 is the fourth hook, 52 is the fifth hook, and 53 is the fifth hook.
Detailed Description
The automatic hooking and unhooking mechanism, the automatic hooking and unhooking device of the mine car and the mine car are described in more detail below by means of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-12, the embodiment discloses an automatic hooking and unhooking mechanism, which comprises a first connecting frame, wherein a lock cavity is arranged in the first connecting frame, a first side part of the lock cavity is hinged with a first hooking lock, the first hooking lock is arranged as a fan-shaped cylinder, the fan-shaped cylinder is hinged and installed in a lock head installation hole of a first upper plate through a lock head cover plate, and the function of the lock head cover plate is to enable the fan-shaped cylinder to be positioned and cover the lock head installation hole; the lock cavity is internally matched and connected with a hook head, an arc-shaped surface matched with the arc-shaped surface of the first hook lock is arranged on the hook head, and a limit baffle for limiting the hook head is also arranged in the lock cavity; the fan-shaped column body is connected with an elastic rotary reset component, a hook groove is formed in the arc edge of the lower portion of the fan-shaped column body, and the outer end of the hook groove is limited by a second pin shaft fixedly connected to the first connecting frame; the inner end of the unhooking handle is fixedly connected with the rotation center of the fan-shaped cylinder of the first hook lock, the outer end of the unhooking handle is matched with the unhooking component, and in the embodiment, the unhooking component comprises a unhooking rod and a unhooking baffle, the outer end of the unhooking handle extends out of the side wall of the first connecting frame, the unhooking rod is hinged on the side wall of the first connecting frame through a fifth pin shaft, and the upper end of the unhooking rod rotates when the lower end of the unhooking rod touches the unhooking baffle, so that the unhooking handle is driven to rotate. When the hook head contacts the limit baffle, the first hook lock resets under the action of the elastic rotary reset component to automatically lock the hook head; when the bottom of the unhooking rod touches the unhooking baffle, the upper part of the unhooking rod rotates forwards to push the unhooking handle to rotate outwards, the unhooking handle rotates to drive the first hook lock to rotate outwards, the lock cavity is opened, and the hook head continues to move forwards to automatically unhook.
Optionally, the two sides of the lock cavity are provided with the hook locks, and only one side of the lock cavity is provided with the hook locks, and correspondingly, the hook heads are provided with the arc surfaces matched with the hook locks on two sides or the arc surfaces matched with the hook locks on one side; in this embodiment, as shown in fig. 1 to 11, a first hook lock is disposed at a first side portion of the lock cavity, a second hook lock with the same structure as the first hook lock is disposed at a second side portion of the lock cavity, an arc surface matched with arc surfaces of the first hook lock and the second hook lock is disposed on the hook head, a first driven gear is connected to the first hook lock, a second driven gear is connected to the second hook lock, the first driven gear is meshed with the first driving gear, the second driven gear is meshed with the second driving gear, the first driving gear is meshed with the second driving gear, the first driven gear and the second driven gear are identical in model, the first driving gear and the second driving gear are identical in model, and a gear mechanism dust cover is disposed on the upper portion of the first upper plate, so that sealing of the first driven gear, the second driven gear, the first driving gear and the second driving gear can be ensured; in addition, for convenience can set up the unhooking baffle in the both sides of track, can both set up the unhooking pole in the both sides of first link, then also be connected with the unhooking handle in the upper portion of second hook lock.
In this embodiment, preferably, the elastic rotation reset component includes reset plate, reset spring and first round pin axle, and reset plate connects at the arc edge outer end of fan-shaped cylinder, and connects reset spring's one end, and reset spring's the other end and first round pin hub connection, first round pin axle fixed connection is at first link middle part, and reset spring is stretched and produces the power that resets when the outward rotation of first hook lock. Of course, in other embodiments, not shown, the elastic rotary reset assembly may also employ a torsion spring, and then have one end of the torsion spring fixed, and the other end of the torsion spring connected to the fan-shaped cylinder.
In this embodiment, it is preferable that the sector-shaped side wall of the sector-shaped column is arranged in an arc shape in the vertical direction. The hook lock is contacted with the hook head line, so that the contact surface between the hook lock and the hook head can be reduced, and unhooking is facilitated.
In this embodiment, preferably, the first connecting frame is a box body composed of a first upper plate, a first lower plate and two first side plates, guide baffles are further arranged on two sides of an inlet of the lock cavity, hook head guide inclined planes are arranged on the first upper plate, the first lower plate and the guide baffles, and the edge of the end face of the hook head is in arc transition. The purpose of setting up in this way is in order to be convenient for the gib head get into the lock chamber, prevents that the gib head from blocking in lock chamber import department.
In this embodiment, preferably, the first upper plate is provided with a polygonal guiding hole, specifically, the square hole is set in this embodiment, a guiding compression bar is slidably connected in the guiding hole, a shaft shoulder is disposed on the guiding compression bar, a compression spring is sleeved on the guiding compression bar on the upper portion of the shaft shoulder, the upper end of the compression spring is fixedly connected to the limiting orifice plate on the first upper plate, the upper end of the guiding compression bar passes through the limiting orifice plate, the shaft shoulder is clamped on the upper portion of the first upper plate, the guiding compression bar on the lower portion of the shaft shoulder stretches out of the inner side of the guiding hole and can be pressed on the hook head, a hook head guiding inclined plane is disposed on the lower portion of the guiding compression bar, so that the hook head can gradually enter the lower end of the guiding compression bar, and therefore the hook can be prevented from sagging, if the hook head on the other side of the hook is caused by sagging, the hook head cannot be aligned with the inlet of the lock cavity, and automatic hook cannot be achieved.
The embodiment also discloses an automatic hooking and unhooking device of the mine car, which comprises two automatic hooking and unhooking mechanisms and a second connecting frame, wherein the automatic hooking and unhooking mechanisms are described in any one of the above, the first automatic hooking and unhooking mechanism is connected to the rear part of a front section carriage of the mine car, the second automatic hooking and unhooking mechanism is connected to the front part of a rear section carriage of the mine car, and hook heads in the two automatic hooking and unhooking mechanisms are connected into a whole through a hook handle; the first end of the second connecting frame is hinged with the mine car through a third pin shaft, and the second connecting frame is also connected with the mine car through a second elastic element, so that the second connecting frame can restore balance after rotating relative to the mine car; the second end of the second connecting frame is hinged with the first connecting frame through a fourth pin shaft, the second connecting frame is also connected with the first connecting frame through a first elastic element, so that the balance of the first connecting frame can be restored after the first connecting frame rotates relative to the second connecting frame, and the third pin shaft is vertically arranged relative to the fourth pin shaft. Because the mine car often needs to turn, go up a slope and descend a slope in the working process, the problems of turning, going up a slope and descending a slope of the mine car can be well solved by using the two-stage connecting frame, arranging the second elastic element between the second connecting frame and the mine car and arranging the first elastic element between the first connecting frame and the second connecting frame.
In the embodiment, specifically, the second connecting frame is a box body formed by a second upper plate, a second lower plate and two second side plates, the second upper plate and the second lower plate are hinged with the mine car through a vertical third pin shaft, the second elastic element comprises two second buffer springs arranged at the left side and the right side of the third pin shaft, one end of each second buffer spring is connected with the mine car, the other end of each second buffer spring is fixedly sleeved on a second guide pin shaft on the second upper plate, the second buffer springs are used for keeping left and right balance of the automatic mine car hooking and unhooking device, namely, after the automatic mine car hooking and unhooking device rotates left and right relative to the mine car, the automatic mine car hooking and unhooking device can also reset automatically relative to the mine car under the action of the two second buffer springs at the two sides of the third pin shaft; the two second side plates are hinged with the two first side plates through a transverse fourth pin shaft, a gap is formed between the first upper plate and the second upper plate, a gap is formed between the first lower plate and the second lower plate, the first elastic element comprises two first buffer springs, a first guide pin shaft connected to the second upper plate and a third guide pin shaft connected to the first side plates, one end of each first buffer spring is fixedly sleeved on each first guide pin shaft, the other end of each first buffer spring is fixedly sleeved on each third guide pin shaft, each first buffer spring is used for keeping the upper and lower balance of the automatic hooking and unhooking device of the mine car, namely, after the first connecting frame rotates up and down relative to the mine car, the first connecting frame can be reset automatically relative to the mine car under the action of the first buffer springs.
In this embodiment, as shown in fig. 12, it is preferable that the hook heads at both ends of the hook handle are symmetrical in shape, and only the first hook lock is provided in the automatic hook unhooking mechanism that mates with both hook heads. The advantage of setting up like this is, the automatic couple unhooking mechanism at both ends can all reduce a hook lock, and can need not the gear, makes overall structure simpler, and the cost of manufacture is lower.
The working principle of the automatic hooking and unhooking device of the mining truck in the embodiment is as follows:
1. as shown in fig. 11, when the hook head of the coupler moves forward along with the mine car and enters a lock cavity in a first connecting frame formed by a first upper plate, a first lower plate and two first side plates, under the guiding action of hook head guiding inclined planes of the two guiding baffles, the first upper plate and the first lower plate, the hook head contacts the hook lock, the hook lock rotates to leave a lock cavity channel, when the hook head moves to contact a limiting baffle, the hook lock resets under the action of a reset spring to lock the hook head, the automatic hook is completed, and due to the arrangement of a second pin shaft, when the hook head pulls the hook lock outwards, the hook lock cannot rotate inwards under the limiting action of the second pin shaft, so that the hook head is firmly locked;
2. when the mine car moves to the position of the unhooking baffle installed above the track, as shown in fig. 9, the unhooking baffle blocks the lower end of the unhooking rod, so that the unhooking rod rotates around the fifth pin shaft, the upper end of the unhooking rod pushes the unhooking handle to rotate, the unhooking handle rotates to drive the first driven gear, the first hook lock and the first transmission gear, the second transmission gear and the second driven gear which are meshed with the first driven gear to rotate together, the hook cavity is opened, and after the hook head is separated from the lock cavity, the first hook lock and the second hook lock automatically complete reset under the action of the reset spring.
The embodiment also discloses a mine car, which comprises a plurality of carriages and the automatic mine car hooking and unhooking device of any one of the preceding carriages, wherein the automatic mine car hooking and unhooking device is connected between two adjacent carriages.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms first, second and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
While the exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that many changes and modifications can be made to the specific embodiments described above without departing from the spirit of the invention, and that many combinations of technical features and structures can be made without departing from the scope of the invention.
Claims (7)
1. The automatic hooking and unhooking mechanism is characterized by comprising a first connecting frame, wherein a lock cavity is arranged in the first connecting frame, a first hooking lock is hinged to the first side part of the lock cavity, the first hooking lock is arranged into a fan-shaped cylinder, a hook head is connected in the lock cavity in a matched manner, an arc-shaped surface matched with the arc-shaped surface of the first hooking lock is arranged on the hook head, and a limiting baffle for limiting the hook head is also arranged in the lock cavity; the fan-shaped column body is connected with an elastic rotary reset component, a hook groove is formed in the arc edge of the lower portion of the fan-shaped column body, and the outer end of the hook groove is limited by a second pin shaft fixedly connected to the first connecting frame; the inner end of the unhooking handle is fixedly connected with the rotation center of the fan-shaped cylinder of the first hook lock, and the outer end of the unhooking handle is matched with the unhooking component;
the unhooking component comprises a unhooking rod and a unhooking baffle, the outer end of the unhooking handle extends out of the side wall of the first connecting frame, the unhooking rod is hinged on the side wall of the first connecting frame through a fifth pin shaft, and the upper end of the unhooking rod rotates when the lower end of the unhooking rod touches the unhooking baffle so as to drive the unhooking handle to rotate;
the first connecting frame is a box body composed of a first upper plate, a first lower plate and two first side plates, guide baffles are further arranged on two sides of an inlet of the lock cavity, hook head guide inclined planes are arranged on the first upper plate, the first lower plate and the guide baffles, and the edge of the end face of each hook head is in arc transition;
the first upper plate is provided with a polygonal guide hole, a guide compression bar is connected in a sliding manner in the guide hole, a shaft shoulder is arranged on the guide compression bar, a compression spring is sleeved on the guide compression bar at the upper part of the shaft shoulder, the upper end of the compression spring is limited by a limiting hole plate fixedly connected to the first upper plate, the shaft shoulder is clamped at the upper part of the first upper plate, the guide compression bar at the lower part of the shaft shoulder extends out of the guide hole and can be pressed on a hook head, and a hook head guide inclined plane is arranged at the lower part of the guide compression bar;
the first hook lock is arranged to be of a fan-shaped cylinder structure, so that the hook head presses the first hook lock, the first hook lock enters a lock cavity after rotating and automatically resets under the action of the elastic rotating reset component, the hook head is locked, automatic hooking is realized, the second pin shaft is arranged, when the hook head pulls the first hook lock outwards, the first hook lock cannot rotate inwards under the limiting action of the second pin shaft, the hook head is firmly locked, and the problem that the hook head loosens or is out of pins due to jolt vibration does not exist in the first hook lock; when the mine car runs to the position of the unhooking baffle plate arranged above the track, the unhooking baffle plate keeps the lower end of the unhooking rod, so that the unhooking rod rotates around the fifth pin shaft, the upper end of the unhooking rod pushes the unhooking handle to rotate, the unhooking handle rotates to directly drive the first hook lock to rotate, the lock cavity is opened, and automatic unhooking is completed.
2. The automatic hooking and unhooking mechanism according to claim 1, wherein a second side part of the lock cavity is provided with a second hooking lock with the same structure as the first hooking lock, the hook head is provided with an arc surface matched with the arc surfaces of the first hooking lock and the second hooking lock, the first hooking lock is connected with a first driven gear, the second hooking lock is connected with a second driven gear, the first driven gear is meshed with a first transmission gear, the second driven gear is meshed with a second transmission gear, and the first transmission gear and the second transmission gear are meshed.
3. The automatic hooking and unhooking mechanism according to claim 1, wherein the elastic rotating reset assembly comprises a reset plate, a reset spring and a first pin shaft, wherein the reset plate is connected to the outer end of the arc-shaped edge of the fan-shaped column body and is connected with one end of the reset spring, the other end of the reset spring is connected with the first pin shaft, the first pin shaft is fixedly connected to the middle part of the first connecting frame, and the reset spring is stretched when the first hook lock rotates outwards.
4. The automatic hooking and unhooking mechanism according to claim 1, wherein the sector-shaped side wall of the sector-shaped column is arranged in a curve shape in the vertical direction.
5. An automatic hooking and unhooking device for a mine car, which is characterized by comprising two automatic hooking and unhooking mechanisms and a second connecting frame according to any one of claims 1-4, wherein the first automatic hooking and unhooking mechanism is connected to the rear part of a front section carriage of the mine car, the second automatic hooking and unhooking mechanism is connected to the front part of a rear section carriage of the mine car, and hook heads in the two automatic hooking and unhooking mechanisms are connected into a whole through a hook handle; the first end of the second connecting frame is hinged with the mine car through a third pin shaft, and the second connecting frame is also connected with the mine car through a second elastic element, so that the second connecting frame can restore balance after rotating relative to the mine car; the second end of the second connecting frame is hinged with the first connecting frame through a fourth pin shaft, the second connecting frame is further connected with the first connecting frame through a first elastic element, so that the balance of the first connecting frame can be restored after the first connecting frame rotates relative to the second connecting frame, and the third pin shaft is vertically arranged relative to the fourth pin shaft.
6. The automatic hooking and unhooking device for mine cars according to claim 5, wherein the first end of the second connecting frame is hinged with the mine car through a vertical third pin shaft, the second elastic element comprises second buffer springs arranged at the left side and the right side of the third pin shaft, one end of each second buffer spring is connected with the mine car, the other end of each second buffer spring is fixedly sleeved on a second guide pin shaft on the second connecting frame, and the second buffer springs are used for keeping left and right balance of the automatic hooking and unhooking device for mine cars; the second connecting frame is hinged with the first connecting frame through a transverse fourth pin shaft, the first elastic element comprises a plurality of first buffer springs, a first guide pin shaft connected to the upper end of the second connecting frame and a third guide pin shaft connected to the side portion of the first connecting frame, one end of each first buffer spring is fixedly sleeved on the corresponding first guide pin shaft, the other end of each first buffer spring is fixedly sleeved on the corresponding third guide pin shaft, and the first buffer springs are used for keeping the upper balance and the lower balance of the automatic hooking and unhooking device of the mine car.
7. A mine car, comprising a plurality of cars and the automatic hooking and unhooking device for mine cars according to any one of claims 5-6, wherein the automatic hooking and unhooking device is connected between two adjacent cars.
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| CN201910905295.XA CN110539772B (en) | 2019-09-24 | 2019-09-24 | Automatic hooking and unhooking mechanism, automatic hooking and unhooking device of mine car and mine car |
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| CN111169503B (en) * | 2020-02-17 | 2021-06-25 | 温州派瑞机械科技有限公司 | Coal mine car with extensible connection structure |
| CN113245352B (en) * | 2021-05-27 | 2022-12-27 | 重庆智得热工工业有限公司 | Medical waste treatment moving square cabin and medical waste treatment method |
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| CN110539772A (en) | 2019-12-06 |
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