Stable inclined shaft trolley with limiting protection structure

Abstract

The utility model discloses a stable inclined shaft trolley with a limiting protection structure, which belongs to the technical field of inclined shaft trolleys and comprises two I-shaped rails symmetrically and obliquely mounted on a foundation, a winch is arranged on one side of each I-shaped rail, a trolley body is jointly mounted on the two I-shaped rails, and the limiting protection structure is arranged on the trolley body. Two sets of auxiliary wheels are symmetrically arranged on the outer surface of the side, close to the I-shaped rail, of the trolley body, limiting plates are welded to the middle positions of the outer surfaces of the two sides of the I-shaped rail, and a limiting protection component is arranged at the joint of the trolley body and the I-shaped rail. According to the trolley limiting device, the trolley can be limited, so that a certain limiting protection mechanism is provided when the whole trolley is used, the whole safety is higher, meanwhile, the whole limiting effect is better, broken stones and impurities in the guide rail can be scraped off, and the trolley is prevented from bumping during running.

Description

Technical Field

[0001] The utility model relates to the technical field of inclined shaft trolleys, in particular to a stable inclined shaft trolley provided with a position limiting protection structure. Background Art

[0002] The excavation and construction of inclined shafts in underground caverns often requires facilities such as manned trolleys and material transport trolleys. In this case, tracks need to be installed on the bottom plate of the inclined shaft for the trolleys to run on the tracks. Generally, light steel rails are used, with specifications of 24kg / m or 38kg / m. They need to be installed manually from top to bottom section by section in the limited space of the inclined shaft, and supported by steel brackets or concrete pier foundations.

[0003] When the inclined shaft trolley moves on the rails, it needs to be pulled and released with the help of a winch and a winch rope to ensure that the trolley moves on the track and realizes the transportation operation of materials and personnel.

[0004] After searching, the Chinese patent with announcement number CN218966916U discloses an anti-fall traction device for inclined shaft mining trolley. This structure uses a locking mechanism and a pushing cylinder to drive the locking rack to move two arc-shaped extrusion plates. The arc-shaped extrusion plate drives multiple extrusion teeth to be squeezed at the outer wall of the winding roller, thereby realizing the contact locking operation of the winding roller and the wire rope, and realizing the extrusion locking operation of a large area of ​​the wire rope and the winding roller, thereby preventing the trolley from falling due to the rapid movement of the wire rope. The large-area locking at multiple points has a better anti-fall effect.

[0005] However, when the structure is actually used, it only utilizes a winch and a winch rope to limit the pulling. In actual use, the trolley itself does not have a certain safety limit mechanism. When the winch fails, the trolley is likely to lose the limit, thus causing danger. The overall stability and safety of use need to be improved. In view of this, the utility model proposes a stable inclined shaft trolley with a limit protection structure. Utility Model Content

[0006] The utility model provides a stable inclined shaft trolley provided with a position limiting protection structure to solve the technical problems existing in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stable inclined shaft trolley with a limit protection structure, comprising two I-shaped rails symmetrically and obliquely installed on a foundation, a winch is arranged on one side of the I-shaped rail, a trolley body is commonly installed on the two I-shaped rails, two sets of auxiliary wheels are symmetrically arranged on the outer surface of one side of the trolley body close to the I-shaped rail, limit plates are welded to the middle positions of the outer surfaces of both sides of the I-shaped rail, one end of the rope on the winch is connected to the hook on the trolley body, and the auxiliary wheels are all rollingly mounted in the I-shaped rail and located at the top of the limit plate.

[0008] It can be seen that the release and pulling of the rope by the winch can drive the trolley body to move on two I-shaped tracks through auxiliary wheels, thereby achieving the transportation of materials during the excavation of inclined shafts in underground caverns.

[0009] In order to achieve the effect that once the winch is damaged, the trolley body needs to be limited to a certain position of the I-shaped track or self-locking limit protection is required, preferably, a limit protection component is provided at the connection between the trolley body and the I-shaped track, and the limit protection component includes a stepper motor, and a mounting groove is provided at the middle position of the bottom of the trolley body, and the stepper motor is embedded and installed in the mounting groove, and a main gear is installed at the output end of the stepper motor, and a mounting frame is provided at the bottom of the trolley body, and a rotating rod is installed by the mounting frame for transverse rotation, and a slave gear is fixedly sleeved on the outer surface of the rotating rod near the middle position, and the output end of the stepper motor is coaxially connected with the main gear, and the slave gear is installed at the bottom of the main gear, and The slave gear and the main gear are meshed with each other, and limit blocks are laterally installed on both sides of the bottom of the trolley body and close to the rotating rod, and the bottom end surfaces of the two limit blocks are provided with limit sliding grooves, and a two-way threaded rod is rotatably installed inside the limit sliding groove, and limit nut blocks are symmetrically arranged on the outer surfaces of both sides of the two-way threaded rod, and a tooth block is installed on the inner wall of the limit nut block, and the inside of the I-shaped track is provided with interfering teeth at intervals at the bottom end of the limit plate, one end of the two-way threaded rod passes through one side of the limit block and is fixedly connected to one end of the rotating rod, the limit nut block is threadedly connected to the outside of the two-way threaded rod, and the tooth block is installed on the inner wall of the limit nut block by screws, and the tooth block is adapted to the interfering tooth structure.

[0010] In order to prevent the gravel or materials inside the trolley body from falling into the inside of the I-shaped track during transportation and causing bumps when the auxiliary wheels roll, preferably, connecting plates are provided on both sides of the bracket to which the auxiliary wheels belong, and a cleaning scraper is provided at one end of the connecting plate. The cleaning scraper is inside the I-shaped track and located on the top of the limit plate, and the cleaning scraper is attached to the inner wall of the I-shaped track.

[0011] The utility model has the following advantages:

[0012] 1. By setting the limit protection component, using the stepping motor, the main gear, the slave gear, the limit block, the limit slide groove, the rotating rod, the limit nut block, the tooth block and the bidirectional threaded rod, the whole can be limited by the tooth block and the conflicting teeth, so that the whole has a certain limit protection mechanism when in use, making the overall safety higher and the overall limit effect better;

[0013] 2. Through the setting of the bidirectional threaded rod, the two sets of tooth blocks on both sides of the whole can brake and disengage at the same time when the whole is limited, so that the overall operation uniformity is better when the whole is in use, and the overall limit stability is guaranteed;

[0014] 3. The I-shaped track is set up so that the overall engagement stability is higher when the auxiliary wheel is installed with the I-shaped track. At the same time, after the abutting teeth and the tooth block abut, the abutting plate is used to limit the position, so that the installation stability between the trolley as a whole and the I-shaped track is higher, and the two are not easy to be separated and disassembled, thus ensuring the overall stability of use;

[0015] 4. Through the movement of the auxiliary wheels, the connecting plate drives the cleaning scraper to move inside the I-shaped track. The cleaning scraper can scrape out the gravel or impurities inside the I-shaped track to prevent the gravel or materials inside the trolley body from falling into the I-shaped track during transportation and causing bumps after rolling on the auxiliary wheels, thereby further improving the stability of the trolley body movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the trolley body and the limit block installation in the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the tooth block and the interfering tooth in the utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure between the connecting plate and the auxiliary wheel in the utility model;

[0023] In the figure: 1. I-shaped rail; 2. winch; 3. trolley body; 4. auxiliary wheel; 5. limit plate; 6. stepper motor; 7. main gear; 8. mounting frame; 9. rotating rod; 10. slave gear; 11. limit block; 12. limit slide groove; 13. two-way threaded rod; 14. limit nut block; 15. tooth block; 16. conflicting tooth; 17. connecting plate; 18. cleaning scraper. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] As attached Figure 1-5 A stable inclined shaft trolley with a limit protection structure is shown, comprising two I-shaped rails 1 symmetrically and obliquely installed on a foundation, a winch 2 is arranged on one side of the I-shaped rail 1, a trolley body 3 is commonly installed on the two I-shaped rails 1, two sets of auxiliary wheels 4 are symmetrically arranged on the outer surface of the trolley body 3 on one side close to the I-shaped rail 1, limit plates 5 are welded at the middle position of the outer surfaces of both sides of the I-shaped rail 1, one end of the rope on the winch 2 is connected to the hook on the trolley body 3, and the auxiliary wheels 4 are all rollingly mounted in the I-shaped rail 1 and located at the top of the limit plate 5.

[0026] Specifically, in this structure, the trolley body 3 can be pulled and released by the winch 2, and a rope is wound around the winch 2. The winch 2 winds and releases the rope, thereby realizing the movement of the trolley body 3 on the two I-shaped rails 1. The two sets of auxiliary wheels 4 at the bottom of the trolley body 3 are both inside the I-shaped rail 1 and roll on the limit plate 5, thereby realizing the stability of the overall movement of the trolley body 3.

[0027] In a specific embodiment, as shown in the attached Figure 1 , 2 As shown in Figures 3 and 4, a limited position protection component is provided at the connection between the trolley body 3 and the I-shaped track 1, and the limited position protection component includes a stepper motor 6. A mounting groove is provided at the middle position of the bottom of the trolley body 3, and the stepper motor 6 is embedded and installed in the inside of the mounting groove. A main gear 7 is installed at the output end of the stepper motor 6, and a mounting frame 8 is provided at the bottom of the trolley body 3, and a rotating rod 9 is installed by the mounting frame 8 for horizontal rotation. A slave gear 10 is fixedly sleeved on the outer surface of the rotating rod 9 near the middle position, and the output end of the stepper motor 6 is coaxially connected with the main gear 7. The slave gear 10 is installed at the bottom of the main gear 7, and the slave gear 10 and the main gear 7 are meshed with each other. The bottom of the trolley body 3 and both sides close to the rotating rod 9 are A limit block 11 is installed horizontally, and a limit slot 12 is provided on the bottom end surface of the two limit blocks 11. A two-way threaded rod 13 is rotatably installed inside the limit slot 12. Limit nut blocks 14 are symmetrically arranged on the outer surfaces of both sides of the two-way threaded rod 13. A tooth block 15 is installed on the inner wall of the limit nut block 14. Interference teeth 16 are distributed at intervals at the bottom end of the limit plate 5 inside the I-shaped rail 1. One end of the two-way threaded rod 13 passes through one side of the limit block 11 and is fixedly connected to one end of the rotating rod 9. The limit nut block 14 is threadedly connected to the outside of the two-way threaded rod 13. The tooth block 15 is installed on the inner wall of the limit nut block 14 by screws, and the tooth block 15 is adapted to the structure of the interference tooth 16.

[0028] Specifically, in this structure, when the trolley body 3 needs to be limited to a certain position of the I-shaped rail 1 or self-locking limit protection is required, the stepper motor 6 is controlled to start, and the main gear 7 is driven to rotate by the rotation of the output shaft of the stepper motor 6, and the main gear 7 drives the meshing slave gear 10 to rotate, so that the rotating rod 9 is rotated inside the mounting frame 8, and the rotation of the rotating rod 9 drives the bidirectional threaded rods 13 on both sides to rotate at the same time, and the rotation of the bidirectional threaded rod 13 makes the two limiting nut blocks 14 inside the limiting block 11 move to the inner middle position of the limiting block 11 at the same time, thereby driving the tooth block 15 at the bottom to move to the outer surface of one side of the contact tooth 16 at the same time, and when it moves to a certain position, the contact tooth 16 and the tooth block 15 are in contact and bite, thereby limiting the trolley body 3, ensuring its overall stability, and making the overall use effect better.

[0029] In a specific embodiment, as shown in the attached Figure 2 , 5 As shown, connecting plates 17 are provided on both sides of the bracket to which the auxiliary wheel 4 belongs, and a cleaning scraper 18 is provided at one end of the connecting plate 17. The cleaning scraper 18 is inside the I-shaped track 1 and is located on the top of the limiting plate 5. The cleaning scraper 18 is attached to the inner wall of the I-shaped track 1.

[0030] Specifically, in this structure, when the auxiliary wheel 4 rolls inside the I-shaped track 1, it will drive the cleaning scraper 18 to move inside the I-shaped track 1 through the connecting plate 17. The cleaning scraper 18 can scrape out the gravel or impurities inside the I-shaped track 1, preventing the gravel or materials inside the trolley body 3 from falling into the inside of the I-shaped track 1 and causing bumps after the auxiliary wheel 4 rolls.

[0031] The use process of the utility model is as follows:

[0032] When the above structure is used, first, the trolley body 3 can be pulled and released by the winch 2. The winch 2 is wound with a rope. The winch 2 winds and releases the rope, so that the trolley body 3 can be moved on the two I-shaped rails 1. The two sets of auxiliary wheels 4 at the bottom of the trolley body 3 are both inside the I-shaped rails 1 and roll on the limit plate 5, so as to achieve the stability of the overall movement of the trolley body 3.

[0033] Once the winch 2 is damaged, or when the trolley body 3 needs to be limited to a certain position of the I-shaped track 1 or self-locking limit protection is required, the stepper motor 6 is controlled to start, and the main gear 7 is driven to rotate by the rotation of the output shaft of the stepper motor 6, and the main gear 7 drives the meshing slave gear 10 to rotate, so that the rotating rod 9 is rotated inside the mounting bracket 8, and the rotation of the rotating rod 9 drives the bidirectional threaded rods 13 on both sides to rotate at the same time, and the rotation of the bidirectional threaded rod 13 makes the two limiting nut blocks 14 inside the limiting block 11 move to the inner middle position of the limiting block 11 at the same time, thereby driving the tooth block 15 at the bottom to move to the outer surface of one side of the contact tooth 16 at the same time, and when it moves to a certain position, the contact tooth 16 and the tooth block 15 are in conflict and bite, so as to limit the trolley body 3, ensure its overall stability, and make the overall use effect better;

[0034] Similarly, when the device as a whole needs to control the trolley body 3 and the I-shaped track 1 to be out of the limit and move, it is only necessary to control the output shaft of the stepper motor 6 to rotate in the opposite direction of the original clamping direction, so that the two sets of tooth blocks 15 at the bottom are simultaneously expanded outward, thereby disengaging from the conflicting teeth 16, so that the trolley body 3 and the I-shaped track 1 are out of the limit, and can move stably, which increases the overall practicality;

[0035] When the auxiliary wheel 4 rolls inside the I-shaped track 1, it will drive the cleaning scraper 18 to move inside the I-shaped track 1 through the connecting plate 17. The cleaning scraper 18 can scrape out the gravel or impurities inside the I-shaped track 1 to prevent the gravel or materials inside the trolley body 3 from falling into the I-shaped track 1 and causing bumps after the auxiliary wheel 4 rolls, thereby further improving the stability of the movement of the trolley body 3.

[0036] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

[0037] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A stable inclined shaft trolley with a position limiting protection structure, comprising two I-shaped rails (1) symmetrically and obliquely installed on a foundation, a winch (2) being arranged on one side of the I-shaped rails (1), a trolley body (3) being commonly installed on the two I-shaped rails (1), two sets of auxiliary wheels (4) being symmetrically arranged on the outer surface of one side of the trolley body (3) close to the I-shaped rails (1), characterized in that: Limiting plates (5) are welded at the middle positions of the outer surfaces of both sides of the I-shaped rail (1), and a limiting protective component is provided at the connection between the trolley body (3) and the I-shaped rail (1); The position limiting protection component comprises a stepping motor (6), a mounting groove is provided at the middle position of the bottom of the trolley body (3), the stepping motor (6) is embedded and installed in the mounting groove, a main gear (7) is installed at the output end of the stepping motor (6), a mounting frame (8) is provided at the bottom of the trolley body (3), and a rotating rod (9) is installed by the mounting frame (8) for horizontal rotation, a slave gear (10) is fixedly sleeved on the outer surface of the rotating rod (9) near the middle position, and the bottom of the trolley body (3) and near the Limiting blocks (11) are transversely installed on both sides of the rotating rod (9), and the bottom end surfaces of the two limiting blocks (11) are provided with limiting sliding grooves (12). A bidirectional threaded rod (13) is rotatably installed inside the limiting sliding groove (12), and limiting nut blocks (14) are symmetrically arranged on the outer surfaces of both sides of the bidirectional threaded rod (13). A tooth block (15) is installed on the inner wall of the limiting nut block (14), and abutting teeth (16) are spaced apart inside the I-shaped track (1) and located at the bottom end of the limiting plate (5).

2. The stable inclined shaft trolley with a position limiting protection structure according to claim 1, characterized in that: One end of the rope on the winch (2) is connected to a hook on the trolley body (3), and the auxiliary wheels (4) are all rollingly mounted in the I-shaped track (1) and are located at the top of the limit plate (5).

3. The stable inclined shaft trolley with a position limiting protection structure according to claim 1, characterized in that: The output end of the stepper motor (6) is coaxially connected to the main gear (7), and the slave gear (10) is installed at the bottom of the main gear (7), and the slave gear (10) and the main gear (7) are meshed with each other.

4. The stable inclined shaft trolley with a position limiting protection structure according to claim 1, characterized in that: One end of the bidirectional threaded rod (13) passes through the outside of one side of the limit block (11) and is fixedly connected to one end of the rotating rod (9); the limit nut block (14) is threadedly connected to the outside of the bidirectional threaded rod (13); the tooth block (15) is installed on the inner wall of the limit nut block (14) by screws; the tooth block (15) is adapted to the abutting tooth (16) structure.

5. The stable inclined shaft trolley with a position limiting protection structure according to claim 1, characterized in that: Connecting plates (17) are provided on both sides of the bracket to which the auxiliary wheel (4) belongs, and a cleaning scraper (18) is provided at one end of the connecting plate (17).

6. The stable inclined shaft trolley with a position limiting protection structure according to claim 5, characterized in that: The cleaning scraper (18) is inside the I-shaped track (1) and is located on the top of the limiting plate (5). The cleaning scraper (18) is attached to the inner wall of the I-shaped track (1).

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