CN215154591U - Device for controlling opening degree of double middle bottom door - Google Patents

Abstract

The utility model discloses a device of dual middle part bottom door aperture of control, include: the crank comprises a gate crank and a small door crank, the gate crank is arranged on a transmission shaft of a gate of a bottom door respectively, the small door crank is arranged on a transmission shaft of a small door of the bottom door, a small door sliding block seat is arranged on the side, away from the large door of the bottom door, of the small door of the bottom door, a small door sliding block is connected on the small door sliding block seat in a sliding manner, the small door sliding block is provided with a small door gear step which is matched with the small door crank and corresponds to the small door gear of the bottom door, a gate sliding block seat is arranged on the side, away from the small door of the bottom door, of the large door of the bottom door, a gate sliding block is connected on the gate sliding block seat in a sliding manner, the gate sliding block is provided with a gate gear step which is matched with the gate crank and corresponds to the gate gear of the bottom door, a gear box is arranged in a control chamber of the bottom door, and a gear push rod is arranged on the gate sliding block seat, the device simple structure is reliable, and easy maintenance satisfies the additional installation transformation of existing stone tiny fragments of stone, coal, etc. hopper car, has solved the great volume that existing bottom door aperture controlling means installed, and the control room arranges the not enough problem in space.

Description

Device for controlling opening degree of double middle bottom door

Technical Field

The utility model belongs to the technical field of railway freight car control, more specifically relates to a device of dual middle part bottom door aperture of control.

Background

The stone ballast hopper car adopts two sets of middle transmission shaft devices to control the double middle bottom doors, so that the problem of ballast clamping in the ballast unloading operation and closing process of the middle bottom door is effectively solved, one set of middle bottom doors controls the inner side gate, the other set of middle bottom doors controls the outer side small door, the gate is the ballast unloading bottom door, and the small door is the ballast clamping preventing bottom door as shown in figure 1 and comprises a transmission device 103, a small door transmission shaft 101 and a gate transmission shaft 102. The existing bottom door opening control device can only control one set of transmission mechanism independently, two sets of bottom door opening control devices are additionally installed independently if the existing bottom door opening control device is adopted to control the requirements of two sets of bottom doors, the existing bottom door opening control device is large in size, the control room is not enough in arrangement space, or the bottom door opening control device small in size is low in arrangement position, ballast unloading personnel need to stride across a speed reducer to operate in a narrow space on the inner side, the sight on the inner side is poor, the operation is not only complicated but also convenient, misoperation is easy to occur, the efficiency is extremely low, and potential safety hazards exist for the ballast unloading personnel and ballast unloading operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough that exists among the prior art, the utility model provides a device of the dual middle part bottom door aperture of control, the device simple structure is reliable, easy maintenance, satisfy the additional transformation of installing of existing stone tiny fragments of stone, coal, etc. hopper car, it is great to have solved the volume that existing bottom door aperture controlling means has, the control room arranges the space not enough, or small bottom door aperture controlling means arranges the position lower, it needs to stride across the reduction gear to the narrow and small space operation business turn over of inboard loaded down with trivial details and inconvenient, the efficiency is extremely low, and there is the problem of potential safety hazard to unloading tiny fragments of coal, etc. personnel and unloading tiny fragments of coal, etc. operation.

In order to achieve the above object, the utility model provides a device of dual middle part bottom door aperture of control, include:

the crank throw comprises a gate crank throw and a small door crank throw, wherein the gate crank throw is arranged on a gate transmission shaft of the bottom door respectively, the small door crank throw is arranged on a small door transmission shaft of the bottom door, and the gate crank throw and the small door crank throw rotate along with the gate transmission shaft of the bottom door and the small door transmission shaft of the bottom door respectively;

the small door sliding block seat is arranged on one side, away from the bottom door, of the bottom door small door, a small door sliding block is connected onto the small door sliding block seat in a sliding mode, a small door gear step matched with the small door crank and corresponding to a small door gear of the bottom door is arranged on the small door sliding block, and the small door gear step can limit the rotation angle of the small door crank;

the gate sliding block seat is arranged on the side, far away from the small door side of the bottom door, of the large door of the bottom door, a gate sliding block is connected to the gate sliding block seat in a sliding mode, the gate sliding block is provided with a gate gear step matched with the gate crank and corresponding to the gate gear of the bottom door, and the gate gear step can limit the rotation angle of the gate crank;

the gear box is arranged in the bottom door control chamber through a gear box base;

and one end of the gear push rod is connected with the small door sliding block and the big door sliding block, and the other end of the gear push rod is movably arranged in the gear box.

Optionally, the lower end of the gate slider is provided with three gate limiting parts with decreasing heights in the direction in which the gate slider is close to the gate crank, the three gate limiting parts are respectively a first gate limiting part, a second gate limiting part and a third gate limiting part, the first gate limiting part, the second gate limiting part and the third gate limiting part form a three-level step structure, the first gate limiting part, the second gate limiting part and the third gate limiting part can sequentially limit the gradual increase of the rotation angle of the gate crank along with the movement of the gate slider in the direction away from the gate crank, the lower end of the small gate slider is provided with a small gate limiting part, and the small gate limiting part is the same as the first gate limiting part in shape.

Optionally, the first gate limiting part is a rotating block, the rotating block is rotatably connected to the gate slider through a rotating round pin, a return spring is arranged between the rotating block and the gate slider, two ends of the return spring are respectively arranged on the gate slider and the rotating block through fixing pins, the rotating round pin is arranged on one side far away from the gate crank, and the return spring is arranged on one side close to the gate crank.

Optionally, the crank throw is connected with the transmission shaft through a key, and the transmission shaft is provided with a shoulder and a positioning sleeve which are matched with the crank throw and used for fixing the crank throw on the transmission shaft so as to prevent the crank throw from longitudinally bouncing on the transmission shaft.

Optionally, the gate slider seat and the small gate slider seat have the same structure, and the gate slider seat includes:

the two vertical plates are symmetrically arranged, a horizontal first connecting plate is arranged between the upper ends of the two vertical plates, a vertical rib plate is arranged on the first connecting plate, and a vertical second connecting plate is arranged between the lower ends of the two vertical plates;

the two bolts penetrate through the two vertical plates, the parts, located between the two vertical plates, of the two bolts are smooth cylinders, the large door sliding block and the small door sliding block are connected to the smooth cylinders in a sliding mode, the penetrating ends of the bolts are connected with nuts in a threaded mode, and threaded gaskets are arranged between the nuts and the vertical plates.

Optionally, the sliding door further comprises a channel steel, one end of the channel steel is connected with the small door sliding block, the other end of the channel steel is connected with the large door sliding block, the large door sliding block and the small door sliding block move synchronously through the channel steel, and the channel steel is provided with a push rod connecting plate connected with the gear push rod.

Optionally, the shift position push rod comprises:

a baffle rod mounting table is arranged at one end of the push rod and penetrates through the gear box, a threaded column is arranged on the baffle rod mounting table, the end of the push rod, far away from the gear box, forms a right-angled triangle structure with a bevel edge together with a rib plate and a reinforcing plate, and is fixedly connected with the push rod connecting plate near the rib plate end;

the right-angle bent part is arranged at the other end of the push rod, and a connecting clamping plate connected with the right-angle bent part is arranged on the gate sliding block;

one end of the gear lever is provided with a circular tube which is rotatably connected to the gear lever mounting table, and the other end of the gear lever penetrates through the gear box;

and the locking nut is in threaded connection with the threaded column.

Optionally, a limiting table is arranged on the stop lever installation table, a blocking piece matched with the limiting table is arranged on the threaded column, and the thickness of the blocking piece is smaller than the length of the limiting table.

Optionally, the gear box is in an open box shape, and the gear box includes:

the upper cover plate is provided with a stop lever sliding groove, one side of the stop lever sliding groove is communicated with a plurality of gear grooves which are adaptive to bottom door gears, the stop lever can slide along the stop lever sliding groove and can be clamped into the gear grooves by rotating around the circular tube, a U-shaped stop lever clamping clip is arranged in each gear groove, an arc-shaped elastic closing-in is arranged at an opening of each gear clamping clip, and the stop lever can be limited in the stop lever clamping clip by the elastic closing-in;

the bottom plate is fixed in the bottom door control chamber through the gear box base;

a back plate disposed between the upper cover plate and the bottom plate;

the two bending side plates are arranged between the upper cover plate and the bottom plate, the bending side plates close to the bottom door side are provided with push rod guide sleeves in a penetrating mode, and the push rods are arranged in the push rod guide sleeves in a penetrating mode.

Optionally, the gear box base is i-shaped, and a long round hole is formed in the gear box base.

The utility model provides a device of dual middle part bottom door aperture of control, its beneficial effect lies in:

1. the device has simple and reliable structure and convenient maintenance, meets the requirement of additional installation and modification of the existing ballast hopper car, and solves the problems that the existing bottom door opening control device has larger volume, insufficient arrangement space of an operating room, or lower arrangement position of the bottom door opening control device with small volume, ballast unloading personnel need to stride across a speed reducer to narrow space at the inner side to operate and enter and exit complicatedly and inconveniently, the efficiency is extremely low, and potential safety hazards exist to the ballast unloading personnel and the ballast unloading operation;

2. the device meets the bottom door opening degree control of the double middle bottom doors of the ballast hopper car, solves the ballast clamping problem by adopting the double bottom doors for the middle bottom door of the ballast hopper car, provides a matched auxiliary ballast unloading device, improves the utilization rate and the ballast unloading operation efficiency of the middle bottom door of the ballast hopper car, reduces the ballast supplementing cost of a line, improves the safety factor of ballast supplementing construction of a ballast supplementing lane center of the ballast hopper car, and has high practicability and economical efficiency;

3. the strength of the gate sliding block seat is improved through the first connecting plate, the second connecting plate and the vertical rib plate, so that the bolt cannot generate plastic deformation in the sliding process of the gate sliding block, and the reliability and flexibility of the bottom door opening control device in use in an overhaul period are ensured;

4. the bottom door opening control device is convenient for a ballast unloading person to remotely operate through the gear push rod, and the channel steel drives the main door sliding block and the small door sliding block to synchronously move through the right-angle bent part matched with the connecting clamp plate, the rib plate, the reinforcing plate and the push rod connecting plate, so that the strength of the push rod assembly is ensured, and the operation synchronism of the device is also ensured;

5. the stop table and the stop piece ensure that the stop lever can not loosen the locking nut when rotating around the push rod, guarantee is provided for the stop lever of the device to flexibly shift gears, and meanwhile, the stop lever adopts a lengthening design, so that the device is labor-saving and convenient to operate, and meets the requirements of man-machine engineering design.

6. The gear lever is in a vertical state during gear shifting, is in an inclined state after being driven into a gear groove, is prevented from falling off by virtue of dead weight, the push rod clamp is further limited to prevent falling off, and meanwhile, the gear box is beside a bottom door control chamber passageway, so that a ballast unloading person can be ensured to stand at one position when the ballast unloading person unloads ballasts from a middle bottom door, that is, the operation of a middle bottom door operating valve and a bottom door opening degree control device can be carried out, different gear grooves are identified through gear marks, and the accuracy of the operation of the ballast unloading person is ensured;

7. the rotating block of the large door sliding block is matched with the return spring, so that the problem that the large door sliding block and the small door sliding block can still be pushed to a closed position when the large door clamps the ballast is solved, the small door always has an anti-false opening function in a closed door state, the safety of the bottom door during ballast unloading operation is guaranteed, and the gear step is reasonable and effective through calculation, test and verification of loading and unloading the ballast.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 shows an installation schematic diagram of a device for controlling double middle bottom door opening according to an embodiment of the present invention.

Fig. 2 shows a schematic diagram of a gate slider structure of an apparatus for controlling double middle bottom door opening according to an embodiment of the present invention.

Fig. 3 shows a view from a of fig. 2 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 4 shows a view from direction B of fig. 2 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 5 shows a schematic structural diagram of a gate slider seat of an apparatus for controlling dual middle bottom door opening according to an embodiment of the present invention.

Fig. 6 shows a side view of fig. 5 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 7 shows a schematic structural diagram of a push rod of an apparatus for controlling opening degree of a dual middle bottom door according to an embodiment of the present invention.

Fig. 8 shows a view from direction a of fig. 7 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 9 shows a top view of fig. 7 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 10 shows an enlarged view at B of fig. 9 of an apparatus for controlling dual middle bottom door opening according to an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a stop lever of an apparatus for controlling opening of a double middle bottom door according to an embodiment of the present invention.

Fig. 12 is a schematic structural diagram illustrating a gear push rod of an apparatus for controlling opening degree of a dual middle bottom door according to an embodiment of the present invention.

Fig. 13 is a schematic structural diagram illustrating a baffle of an apparatus for controlling opening degree of a double middle bottom door according to an embodiment of the present invention.

Fig. 14 shows a schematic structural diagram of a gear box of an apparatus for controlling opening degree of a dual middle bottom door according to an embodiment of the present invention.

Fig. 15 shows a top view of fig. 5 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 16 is a schematic structural diagram of a gear clip of an apparatus for controlling dual middle bottom door opening according to an embodiment of the present invention.

Fig. 17 shows a top view of a gearbox base of a device for controlling dual middle bottom door opening according to an embodiment of the present invention.

Fig. 18 shows a schematic structural diagram of a closing position of a gate slider of an apparatus for controlling a double middle bottom door opening according to an embodiment of the present invention.

Fig. 19 shows a view from direction a of fig. 18 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 20 shows a B-diagram of fig. 18 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 21 is a schematic structural diagram illustrating a closed gear of a gear groove of a device for controlling the opening degree of a dual middle bottom door according to an embodiment of the present invention.

Fig. 22 shows a schematic diagram of a gear position of a gate slider of an apparatus for controlling double middle bottom door opening according to an embodiment of the present invention.

Fig. 23 shows a view from direction a of fig. 22 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 24 shows a B-diagram of fig. 22 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 25 is a schematic diagram illustrating a gear of a gear groove of an apparatus for controlling a dual middle bottom door opening according to an embodiment of the present invention.

Fig. 26 is a schematic diagram illustrating a two-position structure of a gate slider of an apparatus for controlling a double middle bottom door opening according to an embodiment of the present invention.

Fig. 27 shows an a-direction view of fig. 26 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 28 shows a B-diagram of fig. 26 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 29 is a schematic structural diagram illustrating two gears in a gear groove of an apparatus for controlling dual middle bottom door opening according to an embodiment of the present invention.

Fig. 30 shows a schematic structural diagram of a full open position of a gate slider of an apparatus for controlling a double middle bottom door opening according to an embodiment of the present invention.

Fig. 31 shows an a-direction view of fig. 30 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 32 shows a B-diagram of fig. 30 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 33 is a schematic structural diagram illustrating a fully opened gear of a gear groove of a device for controlling the opening degree of a dual middle bottom door according to an embodiment of the present invention.

Fig. 34 shows a schematic structural diagram of a closing gear of a gate slider when a gate of a device for controlling opening of a double middle bottom door clamps a ballast according to an embodiment of the present invention.

Fig. 35 shows an a-direction view of fig. 34 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 36 shows a B-diagram of fig. 34 of an apparatus for controlling dual mid-bottom door opening in accordance with an embodiment of the present invention.

Fig. 37 shows a schematic structural diagram of a closed gear of a gear groove when a gate of a device for controlling the opening degree of a double middle bottom door clamps a ballast according to an embodiment of the present invention.

Description of reference numerals:

1. a gate crank; 2. a small door crank; 3. a small door slider seat; 4. a gate slide block seat; 4.1, standing a plate; 4.2, a first connecting plate; 4.3, a second connecting plate; 4.4, a stud plate; 4.5 bolts; 4.6, a nut; 4.7, a threaded washer; 5. a gear box; 5.1, an upper cover plate; 5.2, a gear groove; 5.3, a stop lever clamp; 5.4, a bottom plate; 5.5, a back plate, 5.6 and a bent side plate; 5.7, a push rod guide sleeve; 6. a gear push rod; 6.1, a push rod; 6.2, a stop lever mounting table; 6.3, a threaded column; 6.4, rib plates; 6.5, a reinforcing plate; 6.6, a right-angle bending part; 6.7, a stop lever, 6.8 and a round pipe; 6.9, locking the nut; 6.10, a limiting table; 6.11, a baffle plate; 7. a gate slider; 7.1, a first gate limiting part; 7.2, a second gate limiting part; 7.3, a third gate limiting part; 7.4, connecting a splint; 7.5, rotating the round pin; 7.6, a return spring; 7.7, a fixing pin; 8. a small door slider; 9. channel steel; 10. a push rod connecting plate; 11. gear box base.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1 to 37, an apparatus for controlling the opening degree of a double middle bottom door, includes:

the crank throw comprises a gate crank throw 1 and a small gate crank throw 2, wherein the gate crank throw 1 is arranged on a gate transmission shaft of the bottom gate, the small gate crank throw 2 is arranged on a small gate transmission shaft of the bottom gate, and the gate crank throw 1 and the small gate crank throw 2 rotate along with the gate transmission shaft of the bottom gate and the small gate transmission shaft of the bottom gate respectively;

the small door sliding block seat 3 is arranged on one side, away from the large door, of the small door of the bottom door, the small door sliding block seat 3 is connected with a small door sliding block 8 in a sliding mode, a small door gear step matched with the small door crank 2 is arranged on the small door sliding block 8, and the small door gear step can limit the rotating angle of the small door crank 2;

the gate sliding block seat 4 is arranged on one side, away from the bottom door small door, of the bottom door gate, the gate sliding block seat 4 is connected with a gate sliding block 7 in a sliding mode, a gate gear step matched with the gate crank 1 is arranged on the gate sliding block 7, and the gate gear step can limit the rotation angle of the gate crank 1;

the gear box 5 is arranged in the bottom door control chamber;

gear push rod 6, gear push rod 6 one end is connected with little door slider 8 and big door slider 7, and gear push rod 6 other end is movably set up in gear box 5.

Concretely, drive simultaneously through push-and-pull gear push rod 6 and slide on little door sliding seat 3 and gate slider 7 on gate sliding seat 4 through little door slider 8, and then restrict the rotation of little door crank 2 and gate crank 1 through different gear steps, make little door transmission shaft and gate transmission shaft unable rotation, reach the effect of restriction little door and the open and close state at the gate, set up through push rod case 5 and make things convenient for the operator to pass through gear push rod remote operation in the bottom door control room, and is simple to use and convenient, and convenient for operation.

In this embodiment, the bottom door is provided with a closing stop, a first stop which is opened by one half, a second stop which is opened by two thirds and a full opening stop, the lower end of the gate slider 7 is provided with three gate limiting parts which are gradually decreased in height along the direction that the gate slider 7 is close to the gate crank 1, the three gate limiting parts are respectively a first gate limiting part 7.1, a second gate limiting part 7.2 and a third gate limiting part 7.3, the first gate limiting part 7.1, the second gate limiting part 7.2 and the third gate limiting part 7.3 form a three-level step structure, the first gate limiting part 7.1, the second gate limiting part 7.2 and the third gate limiting part 7.3 can sequentially limit the gradual increase of the rotation angle of the gate crank 1 along with the movement of the gate slider 7 in the direction away from the gate crank 1, the lower end of the small gate slider 8 is provided with a small gate limiting part, and the small gate limiting part has the same shape as the first gate limiting part.

Specifically, different use requirements are met by the closing gear, the first half-open gear, the second two-third-open gear and the full-open gear, different unloading requirements are met, the rotation of the gate crank 1 is limited by the first gate limiting part 7.1, the second gate limiting part 7.2 and the third gate limiting part 7.3, the opening state of the gate is further limited, and the gear steps are reasonable and effective through calculation tests and verification of loading and unloading of the ballast.

In this embodiment, the first gate limiting part 7.1 is a rotating block, the rotating block is rotatably connected to the gate slider 7 through a rotating round pin 7.5, a return spring 7.6 is arranged between the rotating block and the gate slider 7, two ends of the return spring 7.6 are respectively arranged on the gate slider 7 and the rotating block through fixing pins 7.7, the rotating round pin is arranged on one side far away from the gate crank 1, and the return spring 7.6 is arranged on one side near the gate crank 1.

Specifically, the turning block, the return spring 7.6 and the gate sliding block 7 are matched to avoid the gate crank 1, so that when a gate clamps the fragments of stone, the gate sliding block 7 and the small door sliding block 8 can still be pushed to a closed position, the small door always has an anti-misopening function in a closed state, and the safety of the bottom door during fragment unloading operation is ensured.

In this embodiment, the crank throw is connected with the transmission shaft through a key, and the transmission shaft is provided with a shaft shoulder and a positioning sleeve which are matched with the crank throw and used for fixing the crank throw on the transmission shaft and avoiding longitudinal leaping of the crank throw on the transmission shaft.

Specifically, the crank throw is simple and reliable with the transmission shaft through the key-type connection installation, and it is simple with trading through the dismantlement of shaft shoulder and the fixed crank of position sleeve, easily later maintenance.

In this embodiment, gate sliding block seat 4 is the same with little door sliding block seat 3 structure, and gate sliding block seat 4 includes:

the two vertical plates 4.1 are symmetrically arranged, a horizontal first connecting plate 4.2 is arranged between the upper ends of the two vertical plates 4.1, a vertical rib plate 4.4 is arranged on the first connecting plate 4.2, and a vertical second connecting plate 4.3 is arranged between the lower ends of the two vertical plates 4.1;

the two bolts 4.5 penetrate through the two vertical plates 4.1, the parts, located between the two vertical plates 4.1, of the two bolts 4.5 are smooth cylinders, the large door sliding block 7 and the small door sliding block 8 are connected to the smooth cylinders in a sliding mode, the penetrating ends of the bolts 4.5 are connected with nuts 4.6 in a threaded mode, and threaded gaskets 4.7 are arranged between the nuts 4.6 and the vertical plates 4.1.

Specifically, constitute the frame construction of gate sliding block seat 4 through two risers 4.1 cooperation first connecting plate 4.2 and second connecting plate 4.3, make gate slider 7 can slide on gate sliding block seat 4 through two bolts 4.5, and it is convenient to change dismantlement simultaneously bolt 4.5, easily later stage with trading bolt 4.5 and gate slider 7, through threaded washer 4.7 cooperation nut 4.6 fastening bolt 4.5.

In this embodiment, still include channel-section steel 9, the one end and the little door slider 8 of channel-section steel 9 are connected, and the other end and the gate slider 7 of channel-section steel 9 are connected, make synchronous motion between gate slider 7 and the little door slider 8 through channel-section steel 9, are provided with the push rod connecting plate 10 of being connected with the gear push rod on the channel-section steel 9.

Specifically, the gate slider 7 and the small door slider 8 slide synchronously through the channel steel 9, the gear push rod 6 is convenient to operate, the effect of controlling the gate and the small door simultaneously is achieved, and the channel steel 9 and the gear push rod 6 are connected through the push rod connecting plate 10.

In the present embodiment, the shift position select lever 6 includes:

a push rod 6.1, a gear rod mounting table 6.2 is arranged at one end of the push rod 6.2, the gear rod mounting table 6.2 penetrates through the gear box 5, a threaded column 6.3 is arranged on the gear rod mounting table 6.2, the end of the push rod 6.1, far away from the gear box 5, forms a right-angled triangle structure with a bevel edge of a reinforcing plate 6.5 with a rib plate 6.4 and the reinforcing plate 6.5, and the end, close to the rib plate 6.4, of the reinforcing plate 6.5 is fixedly connected with a push rod connecting plate 10;

the right-angle bent part 6.6 is arranged at the other end of the push rod 6.1, and the gate sliding block 7 is provided with a connecting clamping plate 7.4 connected with the right-angle bent part 6.6;

a gear lever 6.7, wherein one end of the gear lever 6.7 is provided with a round pipe 6.8, the round pipe 6.8 is rotatably connected to a gear lever mounting table 6.2, and the other end of the gear lever 6.7 penetrates through the gear box 5;

and the locking nut 6.9 is in threaded connection with the threaded column 6.3.

Specifically, connect through right angle kink 6.6 and connecting splint 7.4 and promote gate slider 7, connect push rod 6.1 and channel-section steel 9 through push rod connecting plate 10, cooperation right angle kink 6.6 and connecting splint 7.4, guarantee gate slider 7 and little gate slider 8 synchronous slip, improve push rod 6.1 through reinforcing plate 6.5 and gusset 6.4 and to push rod connecting plate 10 support intensity, establish on shelves pole mount table 6.2 through pipe 6.8 cover through shelves pole 6.7, make shelves pole 6.7 rotatable when not promoting push rod 6.1 through shelves pole mount table 6.2, pipe 6.8 and lock nut 6.9, and rotatory arbitrary angle all can promote push rod 6.1.

In this embodiment, a limiting table 6.10 is arranged on the stop lever mounting table 6.2, a blocking piece 6.11 matched with the limiting table 6.10 is arranged on the threaded column 6.3, and the thickness of the blocking piece 6.11 is smaller than the length of the limiting table 6.10.

Specifically, the stop piece 6.11 is limited to rotate along with the stop rod 6.7 through the limiting table 6.10, the stop piece 6.11 isolates the circular tube 6.8 from the locking nut 6.9 through the cooperation of the stop piece 6.11 and the limiting table 6.10, and the stop rod 6.7 is prevented from rotating and loosening the locking nut 6.9.

In the present embodiment, the range box 5 is an open box shape, and the range box 5 includes:

the upper cover plate 5.1 is provided with a stop lever chute, one side of the stop lever chute is communicated with a plurality of gear slots 5.2 which are matched with the gears of the bottom door, a stop lever 6.7 can slide along the stop lever chute and can clamp the stop lever 6.7 into the gear slot 5.2 by rotating around a circular tube 6.8, a U-shaped stop lever clamp 5.3 is arranged in the gear slot 5.2, an arc-shaped elastic closing-in is arranged at an opening of the stop lever clamp 5.3, and the elastic closing-in can limit the stop lever 6.8 in the stop lever clamp 5.3;

the bottom plate 5.4 is fixed in the bottom door control chamber through a gear box base 11;

a back plate 5.5 arranged between the upper cover plate 5.1 and the bottom plate 5.4;

two curb plates 5.6 of bending set up between upper cover plate 5.1 and bottom plate 5.4, and the curb plate 5.6 of bending that is close to the bottom door side wears to be equipped with push rod uide bushing 5.7, and push rod 6.7 wears to establish in push rod uide bushing 5.7.

Specifically, an open box-packed gear box 5 is formed by an upper cover plate 5.1, a bottom plate 5.4, a back plate 5.5 and two bent side plates 5.6, gears are matched with bottom door gears through gear grooves 5.2, different gears can be adjusted by conveniently operating gear push rods 6, gear rods 6.7 are in a vertical state when shifting gears, are in an inclined state after being driven into the gear grooves 5.2 and are prevented from being separated by dead weight, push rod clamps 5.3 are further limited to be prevented from being separated, meanwhile, the gear box 5 is beside a bottom door control room passageway, a ballast unloading person can be guaranteed to stand at one position when unloading ballasts from the bottom door, the operation on a middle bottom door operating valve and a bottom door opening control device can be carried out, different gear grooves 5.2 are identified through gear marks, and the operation accuracy of the ballast unloading person is guaranteed.

In this embodiment, the gear box base 11 is i-shaped, and the gear box base 11 is provided with a long circular hole.

Specifically, the gear box base 11 facilitates installation of the gear box 5, and the long round hole facilitates connection and fixation of the gear box 5 on the gear box base 11 through bolts.

When the device for controlling the opening degree of the double middle bottom doors is used, taking the opening and closing of the bottom doors as an example, the bottom doors are in a closed state, the baffle rod 6.7 is positioned at a closing gear of the baffle groove 5.2, the gate crank 1 is abutted against a first gate limiting part of the gate slider 7, the small gate crank 2 is abutted against a small gate limiting part of the small gate slider 8, then the gear push rod 6 is operated, the baffle rod 6.7 is rotated firstly, the baffle rod 6.7 is separated from the closing gear of the baffle groove 5.2, then the gear push rod 6 is pushed, the baffle rod 6.7 drives the channel steel 9 to move through the push rod 6.1, the channel steel 9 simultaneously drives the gate slider 7 and the small gate slider 8 to move, the gear steps are switched, the small gates are fully opened, the gates are fully opened by half or one third as required, the baffle rod 6.7 is clamped into the corresponding baffle groove 5.2, closing and switching are carried out by the same principle, when the gates clamp the tiny fragments, the gate block is extruded by the crank 1 to turn over, the small door sliding block 8 can still move to a closing gear to limit the movement of the small door crank 2, so that the small door always has the function of preventing mistaken opening in a closed door state, and the safety of the bottom door during implementation of ballast unloading operation is ensured.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (10)

1. A device for controlling the opening degree of a double middle bottom door is characterized by comprising:

the crank throw comprises a gate crank throw and a small door crank throw, wherein the gate crank throw is arranged on a gate transmission shaft of the bottom door respectively, the small door crank throw is arranged on a small door transmission shaft of the bottom door, and the gate crank throw and the small door crank throw rotate along with the gate transmission shaft of the bottom door and the small door transmission shaft of the bottom door respectively;

the small door sliding block seat is arranged on one side, away from the bottom door, of the bottom door small door, a small door sliding block is connected onto the small door sliding block seat in a sliding mode, a small door gear step matched with the small door crank and corresponding to a small door gear of the bottom door is arranged on the small door sliding block, and the small door gear step can limit the rotation angle of the small door crank;

the gate sliding block seat is arranged on the side, far away from the small door side of the bottom door, of the large door of the bottom door, a gate sliding block is connected to the gate sliding block seat in a sliding mode, the gate sliding block is provided with a gate gear step matched with the gate crank and corresponding to the gate gear of the bottom door, and the gate gear step can limit the rotation angle of the gate crank;

the gear box is arranged in the bottom door control chamber through a gear box base;

and one end of the gear push rod is connected with the small door sliding block and the big door sliding block, and the other end of the gear push rod is movably arranged in the gear box.

2. The apparatus for controlling opening degree of a double middle bottom door according to claim 1, the lower end of the gate sliding block is provided with three gate limiting parts with progressively decreasing heights along the direction of the gate sliding block close to the gate crank, wherein the three gate limiting parts are a first gate limiting part, a second gate limiting part and a third gate limiting part respectively, the first gate limiting part, the second gate limiting part and the third gate limiting part form a three-step structure, and move along with the gate sliding block in the direction away from the gate crank, the first gate limiting part, the second gate limiting part and the third gate limiting part can sequentially limit the rotation angle of the gate crank to be gradually increased, the lower end of the small door sliding block is provided with a small door limiting part, and the shape of the small door limiting part is the same as that of the first large door limiting part.

3. The device for controlling the opening degree of the double middle bottom door as claimed in claim 2, wherein the first door limiting part is a rotating block, the rotating block is rotatably connected to the door slider through a rotating round pin, a return spring is arranged between the rotating block and the door slider, two ends of the return spring are respectively arranged on the door slider and the rotating block through fixing pins, the rotating round pin is arranged on the side far away from the door crank, and the return spring is arranged on the side close to the door crank.

4. The device for controlling the opening degree of the double middle bottom door as claimed in claim 1, wherein the crank throw is connected with a transmission shaft through a key, and a shaft shoulder and a positioning sleeve matched with the crank throw are arranged on the transmission shaft and used for fixing the crank throw on the transmission shaft so as to prevent the crank throw from longitudinally jumping on the transmission shaft.

5. The device for controlling the opening of a double mid-bottom door as claimed in claim 1, wherein said large door slider housing and said small door slider housing are identical in structure, said large door slider housing comprising:

the two vertical plates are symmetrically arranged, a horizontal first connecting plate is arranged between the upper ends of the two vertical plates, a vertical rib plate is arranged on the first connecting plate, and a vertical second connecting plate is arranged between the lower ends of the two vertical plates;

the two bolts penetrate through the two vertical plates, the parts, located between the two vertical plates, of the two bolts are smooth cylinders, the large door sliding block and the small door sliding block are connected to the smooth cylinders in a sliding mode, the penetrating ends of the bolts are connected with nuts in a threaded mode, and threaded gaskets are arranged between the nuts and the vertical plates.

6. The device for controlling the opening degree of the double middle bottom door is characterized by further comprising a channel steel, one end of the channel steel is connected with the small door sliding block, the other end of the channel steel is connected with the large door sliding block, the large door sliding block and the small door sliding block synchronously move through the channel steel, and a push rod connecting plate connected with the gear push rod is arranged on the channel steel.

7. The apparatus for controlling opening degree of a double middle bottom door according to claim 6, wherein the shift position push rod comprises:

a baffle rod mounting table is arranged at one end of the push rod and penetrates through the gear box, a threaded column is arranged on the baffle rod mounting table, the end of the push rod, far away from the gear box, forms a right-angled triangle structure with a bevel edge together with a rib plate and a reinforcing plate, and is fixedly connected with the push rod connecting plate near the rib plate end;

the right-angle bent part is arranged at the other end of the push rod, and a connecting clamping plate connected with the right-angle bent part is arranged on the gate sliding block;

one end of the gear lever is provided with a circular tube which is rotatably connected to the gear lever mounting table, and the other end of the gear lever penetrates through the gear box;

and the locking nut is in threaded connection with the threaded column.

8. The device for controlling the opening degree of the double middle bottom door as claimed in claim 7, wherein a limiting platform is arranged on the stop lever mounting platform, a stop piece matched with the limiting platform is arranged on the threaded column, and the thickness of the stop piece is smaller than the length of the limiting platform.

9. The apparatus for controlling opening degree of a double middle bottom door according to claim 7, wherein the range box is an open box, and the range box comprises:

the upper cover plate is provided with a stop lever sliding groove, one side of the stop lever sliding groove is communicated with a plurality of gear grooves which are adaptive to bottom door gears, the stop lever can slide along the stop lever sliding groove and can be clamped into the gear grooves by rotating around the circular tube, a U-shaped stop lever clamping clip is arranged in each gear groove, an arc-shaped elastic closing-in is arranged at an opening of each gear clamping clip, and the stop lever can be limited in the stop lever clamping clip by the elastic closing-in;

the bottom plate is fixed in the bottom door control chamber through the gear box base;

a back plate disposed between the upper cover plate and the bottom plate;

the two bending side plates are arranged between the upper cover plate and the bottom plate, the bending side plates close to the bottom door side are provided with push rod guide sleeves in a penetrating mode, and the push rods are arranged in the push rod guide sleeves in a penetrating mode.

10. The device for controlling the opening degree of the double middle bottom door according to claim 9, wherein the gear box base is I-shaped and is provided with a long circular hole.

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