Down-sampling trolley structure of raw coal bunker

Abstract

The utility model discloses a raw coal bunker down-sampling trolley structure which comprises two L-shaped support plates which are arranged oppositely, two trolley guide rail pieces which are symmetrically arranged between the two L-shaped support plates, and four trolley wheels which are symmetrically arranged on the two trolley guide rail pieces in a rolling manner, triangular limiting vertical plates are fixedly installed on the two sides of each small wheel and located at the end of a wheel axle, a supporting bottom plate is detachably installed between every two adjacent triangular limiting vertical plates, two T-shaped sliding blocks are symmetrically connected to the top face of each supporting bottom plate in a sliding mode, and the top face of each T-shaped sliding block is connected with a limiting auxiliary wheel through a damping and buffering component. The limiting auxiliary wheels abut upwards and are connected to the bottom face of the trolley guide rail piece in a rolling mode so that the trolley wheels can be stretched downwards to abut downwards and roll on the trolley wheels to be prevented from falling off. The small wheel and the two limiting auxiliary wheels form a triangular distribution structure, so that the stability between the small wheel and the trolley guide rail piece is improved, and the small wheel is prevented from falling off from the trolley guide rail piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling under a raw coal bunker, in particular to a trolley structure for sampling under a raw coal bunker. Background Art

[0002] The sampling trolley under the raw coal bunker is a device for sampling from under the raw coal bunker during coal storage or transportation. The device can go deep into the raw coal bunker and collect coal samples through mechanical devices. The purpose of this is to obtain representative coal samples for subsequent quality inspection and analysis. Compared with manual sampling, the use of a sampling trolley can reduce the number of people directly entering dangerous or inconvenient areas, thereby improving the safety of operations.

[0003] The current sampling trolleys generally have a sampling material box, and move forward and backward on the guide rails at the required position through small wheels. However, in the environment under the raw coal bunker, slag, gravel and stones are often seen everywhere, and the wheels of the sampling trolleys generally do not have a limiting structure that pulls down the small wheels to always move on the guide rails. When the small wheels are moving, it is easy for the small wheels to fall off the guide rails due to the adhesion of slag or stones on the guide rails, thereby reducing the sampling efficiency. Utility Model Content

[0004] The utility model aims to provide a sampling trolley structure under a raw coal bunker to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling trolley structure under a raw coal bunker, comprising two L-bracket plates arranged opposite to each other, two trolley guide rails symmetrically installed between the two L-bracket plates, and four trolley wheels symmetrically and rollingly arranged on the two trolley guide rails, wherein a wheel axle is rotatably connected between the two trolley wheels arranged opposite to each other, a sampling material tray is welded at the middle position of the top surface of the two wheel axles, a support plate is welded on the top surface of one of the wheel axles, and a driving assembly for driving the trolley wheels to roll forward and backward on the trolley guide rail is arranged on the support plate;

[0006] A triangular limit plate is fixedly installed on both sides of each small wheel and at the end of the wheel axle, and a support base plate is detachably installed between two adjacent triangular limit plates. The top surface of the support base plate is symmetrically slidably connected with two T-shaped sliders, and the top surface of each T-shaped slider is connected with a limit auxiliary wheel through a shock-absorbing and buffering component. The limit auxiliary wheel abuts upward and rolls on the bottom surface of the trolley guide rail member to stretch the small wheel downward and roll on the small wheel to prevent it from falling off. The small wheel and the two limit auxiliary wheels form a triangular distribution structure, thereby increasing the stability between the small wheel and the trolley guide rail member and preventing the small wheel from falling off the trolley guide rail member.

[0007] Preferably, the shock-absorbing and buffering component comprises a hydraulic buffer damper, a U-shaped support is welded to the top end of the hydraulic buffer damper, and the limiting auxiliary wheel is rotatably installed in the U-shaped support.

[0008] In this solution, a rectangular groove is transversely opened in the middle of the top surface of the supporting bottom plate, and a double-headed screw with two thread patterns in opposite directions is rotatably installed in the rectangular groove through a bearing;

[0009] One end of the double-headed screw rod extends to the outside of the supporting bottom plate and is connected to a crank plate.

[0010] Preferably, the bottom ends of the two T-shaped sliding blocks are slidably fitted in the rectangular groove and are connected by symmetrical threads of a double-headed screw.

[0011] Preferably, the upper portion of each of the triangular limiting uprights is provided with a connecting hole for mounting the end of the wheel axle, and two adjacent triangular limiting uprights are mounted to the supporting base plate by locking bolts.

[0012] Preferably, in this solution, two small wheels close to the forward direction and two small wheels close to the backward direction are located on the opposite sides and around the trolley guide rail parts, and are sleeved with slag cleaning sleeves for removing debris.

[0013] Preferably, two adjacent slag cleaning sleeves are provided with sharp shovel ends for shoveling away the adhered slag on opposite sides;

[0014] The tail end of each slag cleaning sleeve is welded to the triangular limiting vertical plate through a connecting rod.

[0015] In this solution, the driving assembly includes a driving motor and a reducer mounted on the top surface of the support plate, the end of the output shaft of the reducer is interference-fitted with a main pulley, and a driven pulley is rotatably mounted on the end of a small wheel close to the driving motor and on the end of the wheel shaft;

[0016] The main pulley and the driven pulley are connected via a belt.

[0017] In this solution, preferably, a sleeve member is integrally formed on the inner side of the driven pulley, and the sleeve member is welded to the outer side of the adjacent small wheel;

[0018] The sleeve member is connected to the end of the wheel shaft via a sealed bearing.

[0019] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0020] The structure of the sampling trolley under the raw coal bunker effectively solves the derailment problem of traditional trolleys caused by slag and rocks by adding limit auxiliary wheels and hydraulic buffer dampers, greatly improving the operation stability and reliability in complex environments and reducing the failure rate. The trolley wheel and the two limit auxiliary wheels form a triangular distribution structure, thereby increasing the stability between the trolley wheel and the trolley guide rail and preventing the trolley wheel from falling off the trolley guide rail;

[0021] When the trolley wheel moves on the trolley guide rail, it moves along with it driven by the wheel axle, and the limiting auxiliary wheel abuts against the bottom of the trolley guide rail upward, and at the same time can form a downward pulling force to pull the trolley wheel downward to always move on the trolley guide rail. In addition, when the trolley wheel moves, the shovel end of the slag cleaning sleeve automatically scrapes off the slag and stones on the trolley guide rail, keeping the trolley guide rail clean, avoiding foreign objects from interfering with the movement of the trolley and preventing derailment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the connection state of the triangular limit plate and the wheel axle of the utility model;

[0025] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 It is a schematic diagram of the structure of the driven pulley and the sealed bearing of the utility model in a disassembled state;

[0027] Figure 5 It is a schematic diagram of the structure of the two triangular limit vertical plates and the supporting bottom plate of the utility model in the split state;

[0028] Figure 6 It is a structural schematic diagram of the connection state of the support base plate and the limiting auxiliary wheel of the utility model.

[0029] Description of reference numerals:

[0030] In the figure: 1. L bracket plate; 2. trolley guide rail parts; 3. sampling material tray; 4. trolley wheel; 5. wheel axle; 6. support plate; 7. driving motor; 8. main pulley; 9. triangular limit vertical plate; 10. slag cleaning sleeve; 11. connecting rod; 12. sharp shovel end; 13. supporting bottom plate; 14. locking bolt; 15. limit auxiliary wheel; 16. driven pulley; 17. belt; 18. T-type slider; 19. sleeve part; 20. sealed bearing; 21. sealed bearing; 22. threaded hole; 23. rectangular groove; 24. hydraulic buffer damper; 25. U-shaped support; 26. double-headed screw; 27. screw thread pattern; 28. crank plate. DETAILED DESCRIPTION

[0031] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0032] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0033] This embodiment discloses Figures 1 to 6 The structure of a sampling trolley under a raw coal bin shown in the figure comprises two L-bracket plates 1 arranged back to back, two trolley guide rails 2 symmetrically installed between the two L-bracket plates 1, and four trolley wheels 4 symmetrically and rollingly arranged on the two trolley guide rails 2, a wheel axle 5 is rotatably connected between the two oppositely arranged trolley wheels 4, a sampling material tray 3 is welded to the middle position of the top surface of the two wheel axles 5, a support plate 6 is welded to the top surface of one of the wheel axles 5, and a driving component for driving the trolley wheels 4 to roll forward and backward on the trolley guide rails 2 is arranged on the support plate 6.

[0034] In this embodiment, the driving assembly includes a driving motor 7 and a reducer installed on the top surface of the support plate 6. The output shaft end of the reducer is interference-fitted with a main pulley 8. A driven pulley 16 is rotatably installed on the outer side of a small wheel 4 near the driving motor 7 and at the end of the wheel shaft 5. The main pulley 8 and the driven pulley 16 are connected by a belt 17. A sleeve member 19 is integrally formed on the inner side of the driven pulley 16. The sleeve member 19 is welded to the outer side of the adjacent small wheel 4. The sleeve member 19 is connected to the end of the wheel shaft 5 through a sealed bearing 20. The main pulley 8 and the driven pulley 16 are connected and the belt 17 is used to transmit the power to complete the power transmission.

[0035] In this embodiment, proximity sensors (SQ1 and SQ2) are installed at symmetrical positions on the opposite sides of the two L bracket plates 1, and a time relay and PLC are provided on the support plate 6. The proximity sensor, time relay, and PLC models can be selected according to actual needs, and the PLC is used to control the opening and closing of each device. The time relay (KT) sends a start signal, the contactor KM1 attracts the drive device to rotate forward, the sampling trolley runs to the sampling point position and contacts the sensor (SQ2), the contactor KM1 disconnects the trolley and stops, the solid material is loaded into the material tray, the time relay (KT) sends a start signal again, the contactor (KM2) attracts the drive device and then reverses, the sampling trolley carrying the material returns to the starting point and touches the sensor (SQ1), the contactor (KM2) disconnects, and the sampling trolley stops.

[0036] In this embodiment, two L-bracket plates 1 arranged back to back and two trolley guide rails 2 constitute the support and guide frame of the trolley, providing a stable installation platform and precise running track for the sampling trolley, ensuring the straightness and stability of the trolley during movement, and reducing the risk of track deviation.

[0037] In this embodiment, four small wheels 4 and wheel axles 5 symmetrically and rollingly arranged on the trolley guide rail member support the trolley and allow it to move on the guide rail, thereby realizing the forward and backward movement of the trolley and improving the flexibility and maneuverability of the trolley on the track.

[0038] In this embodiment, triangular limiting uprights 9 are fixedly installed on both sides of each trolley wheel 4 and at the ends of the wheel axle 5, and a supporting base plate 13 is detachably installed between two adjacent triangular limiting uprights 9. The top surface of the supporting base plate 13 is symmetrically and slidingly connected with two T-shaped sliders 18. The top surface of each T-shaped slider 18 is connected to a limiting auxiliary wheel 15 through a shock-absorbing and buffering component. The limiting auxiliary wheel 15 abuts upward and is rollingly connected to the bottom surface of the trolley guide rail member 2 for downward stretching. The trolley wheel 4 abuts downward and rolls on the trolley wheel 4 to prevent it from falling off. The trolley wheel 4 and the two limiting auxiliary wheels 15 form a triangular distribution structure, thereby increasing the stability between the trolley wheel 4 and the trolley guide rail member 2 and preventing the trolley wheel 4 from falling off the trolley guide rail member 2.

[0039] In this embodiment, the triangular limiting plate 9 and the supporting bottom plate 13 provide additional stability and limiting mechanism, which restricts the lateral movement of the wheels on the guide rails and prevents derailment, thus significantly improving the driving stability of the trolley on uneven tracks or tracks with debris.

[0040] In this embodiment, the shock-absorbing and buffering component includes a hydraulic buffer damper 24, which is used to absorb impact and improve stability. A U-shaped support 25 is welded to the top of the hydraulic buffer damper 24, and the limiting auxiliary wheel 15 is rotatably installed in the U-shaped support 25. A rectangular groove 23 is horizontally opened in the middle position of the top surface of the supporting base plate 13. A double-headed screw 26 with two thread patterns 27 in opposite directions is rotatably installed in the rectangular groove 23 through a bearing. One end of the double-headed screw 26 extends to the outside of the supporting base plate 13 and is connected to a crank plate 28. The bottom ends of the two T-shaped sliders 18 are slidably adapted in the rectangular groove 23 and are symmetrically threadedly penetrated by the double-headed screw 26.

[0041] In this embodiment, the limiting auxiliary wheel 15 and the hydraulic buffer damper 24 enhance the contact stability between the small wheel and the guide rail. The limiting auxiliary wheel 15 pushes up the small wheel to make it fit closely to the guide rail. At the same time, the hydraulic buffer damper 24 absorbs the impact to protect the small wheel and the track. Even in an environment with a lot of debris and stones, the small wheel can keep rolling stably, reducing the risk of wear and falling off.

[0042] In this embodiment, a connection hole 21 for installing the end of the wheel axle 5 is provided on the upper portion of each triangular limit plate 9, and two adjacent triangular limit plates 9 are installed with the supporting base plate 13 through locking bolts 14. A plurality of threaded holes 22 for connecting the locking bolts 14 are symmetrically provided on the outer wall of the triangular limit plate 9.

[0043] In this embodiment, the two small wheels 4 near the forward direction and the two small wheels 4 near the backward direction are sleeved with a slag-clearing sleeve 10 for clearing the slag on the opposite side and on the side around the trolley guide rail 2. The two adjacent slag-clearing sleeves 10 are provided with a sharp shovel end 12 for shoveling the adhered slag on the opposite side, effectively clearing the slag accumulated on the travel route. The tail end of each slag-clearing sleeve 10 is welded to the triangular limit vertical plate 9 through a connecting rod 11. The slag-clearing sleeve 10 and the sharp shovel end 12 automatically clear obstacles on the track. When the trolley is moving, the shovel end on the slag-clearing sleeve automatically scrapes off the slag and stones on the guide rail, keeps the track clean, avoids foreign matter from interfering with the travel of the trolley, and improves the ability of continuous operation.

[0044] Working principle:

[0045] The structure of the sampling trolley under the raw coal bunker, the time relay (KT) sends a start signal, the contactor KM1 attracts the driving device to rotate forward, the sampling trolley runs to the sampling point and touches the sensor (SQ2), the contactor KM1 disconnects the trolley and stops, the solid material is loaded into the material tray, the time relay (KT) sends a start signal again, the contactor (KM2) attracts the driving device and then reverses, the sampling trolley carrying the material returns to the starting point and touches the sensor (SQ1), the contactor (KM2) disconnects, and the sampling trolley stops;

[0046] When the driving motor 7 drives the main pulley 8 to rotate, the driven pulley 16 is driven to rotate through the belt 17. Under the action of the fixed connection between the sleeve member 19 of the driven pulley 16 and the small wheel 4, the small wheel 4 can be driven to roll on the trolley guide member 2, thereby driving the trolley to move, and the wheel shaft 5 is firmly fixed in the small wheel 4 under the action of the bearing, and the sampling material tray 3 is firmly supported;

[0047] When the trolley wheel 4 moves on the trolley guide rail 2, it moves along with the wheel shaft 5, and the position limiting auxiliary wheel 15 abuts against the bottom of the trolley guide rail 2 upward, and at the same time can form a downward pulling force to pull the trolley wheel 4 to always move on the trolley guide rail 2. In addition, when the trolley wheel 4 moves, the sharp shovel end 12 on the slag cleaning sleeve 10 automatically scrapes off the slag and stones on the trolley guide rail 2, keeping the trolley guide rail 2 clean, avoiding foreign objects from interfering with the movement of the trolley and preventing derailment;

[0048] The triangular limiting upright plate 9 and the supporting bottom plate 13 provide additional stability and limiting mechanism to limit the lateral movement of the small wheel on the guide rail to prevent derailment. The double-headed screw 26 is driven to rotate in the rectangular groove 23 by rotating the crank plate 28. The spacing between the two T-shaped sliders 18 is adjusted under the action of the screw threads 27 in two opposite directions, thereby adjusting the position of the limiting auxiliary wheel 15, so that the small wheel 4 and the two limiting auxiliary wheels 15 form a triangular shape to increase stability.

[0049] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling trolley structure for raw coal bunker, comprising two L-shaped bracket plates (1) arranged in opposite directions, two trolley guide rails (2) symmetrically installed between the two L-shaped bracket plates (1), and four small wheels (4) symmetrically rollingly arranged on the two trolley guide rails (2), characterized in that: A wheel axle (5) is rotatably connected between two small wheels (4) arranged opposite to each other, a sampling material plate (3) is welded in the middle of the top surfaces of the two wheel axles (5), a support plate (6) is welded on the top surface of one of the wheel axles (5), and a driving component for driving the small wheel (4) to roll forward and backward on the trolley guide rail (2) is arranged on the support plate (6); A triangular limit plate (9) is fixedly installed on both sides of each small wheel (4) and at the end of the wheel shaft (5); a support base plate (13) is detachably installed between two adjacent triangular limit plates (9); the top surface of the support base plate (13) is symmetrically slidably connected with two T-shaped sliders (18); the top surface of each T-shaped slider (18) is connected to a limit auxiliary wheel (15) through a shock-absorbing and buffering component; the limit auxiliary wheel (15) is upwardly abutted and rollingly connected to the bottom surface of the trolley guide rail member (2) for downward stretching of the small wheel (4) so ​​that the small wheel (4) abuts downward and rolls on the small wheel (4) to prevent it from falling off; and a slag cleaning sleeve (10) is also sleeved on the peripheral side of the trolley guide rail member (2) and moves with the triangular limit plate (9).

2. The structure of a sampling trolley for raw coal bunker according to claim 1 is characterized by: The shock absorbing and buffering component comprises a hydraulic buffer damper (24), a U-shaped support (25) is welded to the top end of the hydraulic buffer damper (24), and the position limiting auxiliary wheel (15) is rotatably mounted in the U-shaped support (25).

3. The structure of a sampling trolley for raw coal bunker according to claim 2 is characterized in that: A rectangular groove (23) is transversely formed in the middle of the top surface of the supporting bottom plate (13), and a double-headed screw (26) having two thread patterns (27) in opposite directions is rotatably mounted in the rectangular groove (23) via a bearing; One end of the double-headed screw (26) extends to the outside of the supporting base plate (13) and is connected to a crank plate (28).

4. The structure of a sampling trolley for raw coal bunker according to claim 3 is characterized by: The bottom ends of the two T-shaped slide blocks (18) are slidably fitted into the rectangular groove (23) and are symmetrically threadedly penetrated by a double-headed screw (26).

5. The structure of a sampling trolley for raw coal bunker according to claim 4 is characterized in that: A connection hole (21) for mounting the end of the wheel axle (5) is provided on the upper portion of each triangular limiting vertical plate (9), and two adjacent triangular limiting vertical plates (9) are mounted on the supporting bottom plate (13) via locking bolts (14).

6. The structure of a sampling trolley for raw coal bunker according to claim 5 is characterized by: Two small wheels (4) close to the forward direction and two small wheels (4) close to the backward direction are both sleeved with slag removal sleeves (10) for removing slag on the opposite sides and located around the trolley guide rail member (2).

7. The structure of a sampling trolley for raw coal bunker according to claim 6 is characterized by: Two adjacent slag-cleaning sleeves (10) are provided with sharp soil-shoveling ends (12) on opposite sides thereof for shoveling away adhered slag; The tail end of each slag cleaning sleeve (10) is welded to the triangular limiting vertical plate (9) via a connecting rod (11).

8. The structure of a sampling trolley for raw coal bunker according to claim 7 is characterized by: The driving assembly comprises a driving motor (7) mounted on the top surface of a supporting plate (6) and a reducer, wherein the end of the output shaft of the reducer is interference-fitted with a main pulley (8), and a driven pulley (16) is rotatably mounted on the end of a wheel shaft (5) near the driving motor (7) and on the outside of a small wheel (4); The main pulley (8) and the driven pulley (16) are connected via a belt (17).

9. The structure of a sampling trolley for raw coal bunker according to claim 8, characterized in that: A sleeve member (19) is integrally formed on the inner side of the driven pulley (16), and the sleeve member (19) is welded to the outer side of the adjacent small wheel (4); The sleeve member (19) is connected to the end of the wheel shaft (5) via a sealed bearing (20).

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