CN214355791U

CN214355791U - Automatic lifting function device for ladder of large dump truck in open coal mine

Info

Publication number: CN214355791U
Application number: CN202120410999.2U
Authority: CN
Inventors: 赵崭; 张晓波; 张永贵; 曹殿华; 于德建
Original assignee: North Weijiamao Coal Power Co Ltd
Current assignee: North Weijiamao Coal Power Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-08
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a large-scale dump truck ladder automatic rising function device in opencut coal mine, including frame, lead screw, sealed lid and fixing bolt, the inboard of frame is fixed with the bracing piece, the inboard bottom that the frame is close to the bracing piece is provided with spacing seat, the link is kept away from threaded sleeve's one end and is fixed with cat ladder pole frame, the guide way has been seted up to the inboard surface of cat ladder pole frame, the internal connection in butt joint hole has the oil filler pipe, fixing bolt runs through the middle part of sealed lid and docks with the fixed plate. This large-scale dump truck ladder automatic rising function device in opencut coal mine slides the butt joint along the track of assigned position with the spout that frame one side is symmetry parallel distribution for the spout of "T" style of calligraphy can carry out spacing connection with the track of assigned position, and use supporting retaining member to run through fixed orifices and connecting hole, thereby makes things convenient for this dump truck ladder automatic rising function device to carry out stable installation at the assigned position.

Description

Automatic lifting function device for ladder of large dump truck in open coal mine

Technical Field

The utility model relates to a large-scale dump truck technical field of opencut coal mine specifically is a large-scale dump truck ladder automatic lifting function device of opencut coal mine.

Background

Open pit transport is the transport of valuable minerals mined in open pits to ground unloading points. Large dump trucks are often used for transportation in view of terrain, geological and climatic conditions. The ladder of the large dump truck in the opencast coal mine is designed to be capable of automatically lifting in order to meet the convenience of climbing, however, the ladder of the large dump truck in the opencast coal mine is still various problems when the ladder of the existing large dump truck in the opencast coal mine is installed at a specified position, therefore, people hope to improve the use efficiency of the ladder of the large dump truck in the opencast coal mine by innovating the ladder automatic lifting function device of the large dump truck in the opencast coal mine, and be convenient for stable installation, so that the ladder automatic lifting function device of the large dump truck in the opencast coal mine has the greatest value, along with the development of science and technology, the ladder automatic lifting function device of the large dump truck in the opencast coal mine is developed to a great extent, and the development of the ladder brings great convenience to people when operating the large dump truck in the opencast coal mine, the variety and number thereof are also increasing day by day.

Although the automatic lifting function device of the ladder of the large dump truck in the open pit coal mine in the current market has very many types and quantity, the automatic lifting function device of the ladder of the large dump truck in the open pit coal mine has the following defects: the automatic lifting function device of the ladder of the large dump truck in the opencast coal mine is inconvenient to stably install at a specified position, and the automatic lifting function device of the ladder of the large dump truck in the opencast coal mine is easy to shake when driving the ladder to lift and the gear transmission position of the automatic lifting function device of the ladder of the large dump truck in the opencast coal mine is inconvenient for adding lubricating oil. Therefore, the automatic lifting function device of the vehicle ladder of the existing large dump truck for the opencast coal mine is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale dump truck ladder automatic rising function device in opencut to solve the inconvenient stable installation that carries out in assigned position of the large-scale dump truck ladder automatic rising function device in opencut on the existing market that above-mentioned background art provided, rock easily when the large-scale dump truck ladder automatic rising function device in opencut drives the cat ladder and go up and down and the problem of the large-scale dump truck ladder automatic rising function device in opencut gear drive position of the large-scale dump truck ladder automatic rising function device in opencut is not convenient for add lubricating oil.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic lifting function device of a large-scale dump truck ladder in an opencast coal mine comprises a machine base, a screw rod, a sealing cover and a fixing bolt, wherein a supporting rod is fixed on the inner side of the machine base, a limiting seat is arranged at the bottom end of the inner side, close to the supporting rod, of the machine base, a bearing sleeve is fixed inside the limiting seat and at the top of the machine base, and the screw rod is in penetrating connection with the bearing sleeve;

the bottom corner of the machine base is provided with a fixing hole, one side of the outer part of the machine base is provided with a sliding groove, the surface of one side of the machine base, which is close to the sliding groove, is provided with a connecting hole, the outer side of the screw rod is connected with a threaded sleeve, two sides of the outer part of the threaded sleeve are fixedly provided with connecting frames, one end of each connecting frame, which is far away from the threaded sleeve, is fixed with a ladder stand, the surface of the inner side of the ladder stand is provided with a guide groove, two ends of the ladder stand are connected with the guide hole in the top of the machine base in a penetrating manner, the inner side of the guide hole is provided with a limiting bulge, and the limiting bulge is connected with the guide groove;

driven gear is installed on the top of lead screw, the driving gear is installed to one side that the frame top is close to driven gear, the top of driving gear docks with driving motor's output, driven gear is provided with the protecting box with the outside of driving gear, the protecting box has seted up the access hole near driven gear's top, the below inboard that the protecting box is close to the access hole is provided with the fixed plate, sealed lid sets up the inside at the access hole, the both sides of sealed lid are fixed with sealed the pad, sealed pad docks with the slot of access hole both sides, the butt joint hole has been seted up to the bottom of slot, the internal connection in butt joint hole has the notes oil pipe, fixing bolt runs through the middle part and the fixed plate of sealed lid and docks.

Preferably, the sliding grooves are symmetrically distributed in parallel about the vertical center line of the base, and the cross section of each sliding groove is in a T-shaped structure.

Preferably, the connecting frame is V-shaped, the connecting frame and the threaded sleeve are vertically distributed, and the screw rod at one end of the connecting frame and the ladder climbing rod frame at the other end of the connecting frame are parallel to each other.

Preferably, the limiting protrusion is in the shape of an isosceles triangle, the cross-sectional dimension of the limiting protrusion is matched with that of the guide groove, and the limiting protrusion forms a sliding structure with the ladder stand frame through the guide groove.

Preferably, the sealing gasket is symmetrically distributed about the central line of the sealing cover, the sealing gasket is in a round table structure, and the size of the sealing gasket is matched with that of the slot.

Preferably, the top of oiling pipe and guard box is vertical distribution, and the axial lead of oiling pipe and the axial lead of slot coincide each other to be interference fit between oiling pipe and the butt joint hole.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the sliding chutes symmetrically distributed in parallel on one side of the base are in sliding butt joint along the track at the designated position, so that the T-shaped sliding chutes can be in limit connection with the track at the designated position, and matched locking pieces penetrate through the fixing holes and the connecting holes, so that the automatic lifting function device of the large-scale dump truck ladder of the open pit coal mine can be conveniently and stably installed at the designated position;

(2) the automatic lifting function device of the large-scale dump truck ladder for the open coal mine drives the ladder stand to stably extend and retract through stable sliding between the guide groove on one side of the ladder stand and the limiting bulge in the guide hole, so that the ladder stand is effectively prevented from shaking during extension and retraction;

(3) this large-scale dump truck ladder automatic rising functional device in opencut coal mine drives sealed the position that fills up and breaks away from the slot with sealed lid to insert into the butt joint hole with interference fit's mode with oiling pipe, pour into oiling pipe into along the slot again in, make oiling pipe with directional drippage of lubricating oil in driven gear tooth seam, thereby make things convenient for gear engagement position to the device to add lubricating oil.

Drawings

FIG. 1 is a schematic structural view of a front cross section of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 4 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 5 is a schematic view of a part of the enlarged structure at B in fig. 2 according to the present invention.

In the figure: 1. a machine base; 2. a support bar; 3. a limiting seat; 4. a bearing housing; 5. a screw rod; 6. a fixing hole; 7. a chute; 8. connecting holes; 9. a threaded bushing; 10. a connecting frame; 11. a ladder climbing pole frame; 12. a guide groove; 13. a guide hole; 14. a limiting bulge; 15. a driven gear; 16. a driving gear; 17. a drive motor; 18. a protective box; 19. an access hole; 20. a fixing plate; 21. a sealing cover; 22. a gasket; 23. a slot; 24. a butt joint hole; 25. an oil filling pipe; 26. and (5) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic lifting function device for a large dump truck ladder in an opencast coal mine comprises a machine base 1, a support rod 2, a limiting seat 3, a bearing sleeve 4, a screw rod 5, a fixing hole 6, a sliding groove 7, a connecting hole 8, a threaded sleeve 9, a connecting frame 10, a ladder stand rod frame 11, a guide groove 12, a guide hole 13, a limiting bulge 14, a driven gear 15, a driving gear 16, a driving motor 17, a protective box 18, an overhaul port 19, a fixing plate 20, a sealing cover 21, a sealing gasket 22, a slot 23, a butt joint hole 24, an oil filling pipe 25 and a fixing bolt 26, wherein the support rod 2 is fixed on the inner side of the machine base 1, the limiting seat 3 is arranged at the bottom end of the inner side of the machine base 1, the bearing sleeve 4 is fixed inside the limiting seat 3 and the top of the machine base 1, and the screw rod 5 is in through connection with the bearing sleeve 4;

the bottom corner of the machine base 1 is provided with a fixing hole 6, one side of the outer part of the machine base 1 is provided with a sliding chute 7, the sliding chutes 7 are symmetrically distributed in parallel relative to the vertical central line of the machine base 1, the cross section of the sliding chute 7 is in a T-shaped structure, so that the machine base 1 can be stably connected on a specified installation track through the sliding chute 7 and the deviation of the installation position of the machine base 1 is prevented, one side surface of the machine base 1 close to the sliding chute 7 is provided with a connecting hole 8, the outer side of the screw rod 5 is connected with a threaded sleeve 9, two sides of the outer part of the threaded sleeve 9 are fixedly provided with connecting frames 10, the connecting frames 10 are in a V shape, the connecting frames 10 and the threaded sleeve 9 are vertically distributed, the screw rod 5 at one end of the connecting frame 10 is parallel to the ladder rod frame 11 at the other end of the connecting frame 10, so that the connecting frames 10 can connect and fix the ladder rod frames 11 and the threaded sleeve 9 into a whole, therefore, the lead screw 5 is enabled to drive the ladder stand rod frame 11 to move up and down when rotating, one end, far away from the threaded sleeve 9, of the connecting frame 10 is fixed with the ladder stand rod frame 11, a guide groove 12 is formed in the surface of the inner side of the ladder stand rod frame 11, two ends of the ladder stand rod frame 11 are in penetrating connection with a guide hole 13 in the top of the base 1, a limiting bulge 14 is arranged on the inner side of the guide hole 13, the limiting bulge 14 is in an isosceles triangle shape, the cross section size of the limiting bulge 14 is matched with that of the guide groove 12, the limiting bulge 14 forms a sliding structure through the guide groove 12 and the ladder stand rod frame 11, the limiting bulge 14 is used for limiting and guiding the guide groove 12 in the surface of the ladder stand rod frame 11, the stability of the ladder stand rod frame 11 in lifting and sliding can be guaranteed, and the limiting bulge 14 is connected with the guide groove 12;

driven gear 15 is installed on the top of lead screw 5, driving gear 16 is installed on one side that frame 1 top is close to driven gear 15, the top of driving gear 16 docks with driving motor 17's output, driven gear 15 is provided with protecting box 18 with the outside of driving gear 16, protecting box 18 has seted up access hole 19 near driven gear 15's top, protecting box 18 is close to access hole 19's below inboard and is provided with fixed plate 20, sealed lid 21 sets up the inside at access hole 19, the both sides of sealed lid 21 are fixed with sealed pad 22, sealed pad 22 is symmetric distribution about the central line of sealed lid 21, and sealed pad 22 is round platform column structure to the size of sealed pad 22 and the size phase-match of slot 23 for sealed pad 22 can extrude the position of slot 23 and seal, avoids oiling pipe 25 to be blockked up by the dust, sealed 22 and the slot 23 of access hole 19 both sides of filling up dock, docking hole 24 has been seted up to the bottom of slot 23, docking hole 24's internal connection has oiling pipe 25, oiling pipe 25 and protective housing 18's top is the vertical distribution, and oiling pipe 25's axial lead and slot 23's axial lead coincide each other to oiling pipe 25 and docking hole 24 between be interference fit, make oiling pipe 25 location install can carry out directional dropwise add to the lubricating oil of adding in docking hole 24, fixing bolt 26 runs through the middle part of sealed lid 21 and docks with fixed plate 20.

The working principle is as follows: when the automatic elevator function device of the large dump truck ladder for the opencast coal mine is used, firstly, the sliding grooves 7 which are symmetrically distributed in parallel on one side of the base 1 are in sliding butt joint along the track at the designated position, so that the T-shaped sliding grooves 7 can be in limit connection with the track at the designated position, matched locking pieces are used for penetrating through the fixing holes 6 at the corners of the bottom of the base 1 and the connecting holes 8 on the inner wall of the sliding grooves 7 for fixing, the automatic elevator function device of the large dump truck ladder for the opencast coal mine is stably installed, the base 1 is supported and reinforced through the supporting rod 2, then, the driving motor 17 is electrified and operated, so that the driving gear 16 drives the driven gear 15 to rotate, the lead screw 5 at the bottom end of the driven gear 15 rotates in the bearing sleeve 4, and the rotating lead screw 5 drives the threaded sleeve 9 and the connecting frame 10 to move up and down, thereby driving the ladder stand rod frame 11 to move downwards along the guide hole 13 at the top of the machine base 1, when a person stands on the ladder stand rod frame 11, the driving motor 17 rotates reversely, so that the threaded sleeve 9 moves upwards along the screw rod 5 through the ladder stand rod frame 11 at one end of the connecting frame 10, and stably slides between the guide groove 12 at one side of the ladder stand rod frame 11 and the limiting bulge 14 inside the guide hole 13, thereby driving the ladder stand rod frame 11 to stably extend and retract, avoiding the shaking when the ladder stand rod frame 11 extends and retracts, and then when lubricating oil needs to be added to the meshing position between the driven gear 15 and the driving gear 16, detaching the fixing bolt 26, driving the sealing cover 21 to drive the sealing gasket 22 to be separated from the position of the slot 23, inserting the oil filling pipe 25 into the butt joint hole 24 in an interference fit manner, and then filling the lubricating oil into the oil filling pipe 25 along the slot 23, so that the grease pipe 25 drops the grease in the tooth gaps of the driven gear 15 in an oriented manner, and the lubrication of the gears is accomplished while the driven gear 15 and the driving gear 16 are in continuous meshing connection, which is well known to those skilled in the art and not described in detail in the present specification.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a large-scale dump truck ladder automatic rising functional device in opencut coal mine, includes frame (1), lead screw (5), sealed lid (21) and fixing bolt (26), its characterized in that: a support rod (2) is fixed on the inner side of the base (1), a limiting seat (3) is arranged at the bottom end of the inner side, close to the support rod (2), of the base (1), a bearing sleeve (4) is fixed inside the limiting seat (3) and at the top of the base (1), and the screw rod (5) is in through connection with the bearing sleeve (4);

the bottom corner of the machine base (1) is provided with a fixing hole (6), one side of the outer portion of the machine base (1) is provided with a sliding groove (7), one side surface, close to the sliding groove (7), of the machine base (1) is provided with a connecting hole (8), the outer side of the screw rod (5) is connected with a threaded sleeve (9), two sides of the outer portion of the threaded sleeve (9) are fixedly provided with connecting frames (10), one end, far away from the threaded sleeve (9), of each connecting frame (10) is fixed with a ladder stand (11), the inner side surface of the ladder stand (11) is provided with a guide groove (12), two ends of the ladder stand (11) are connected with a guide hole (13) in the top of the machine base (1) in a penetrating mode, the inner side of the guide hole (13) is provided with a limiting protrusion (14), and the limiting protrusion (14) is connected with the guide groove (12);

driven gear (15) is installed on the top of lead screw (5), driving gear (16) is installed to one side that frame (1) top is close to driven gear (15), the top of driving gear (16) docks with the output of driving motor (17), driven gear (15) are provided with protective housing (18) with the outside of driving gear (16), access hole (19) has been seted up on protective housing (18) is close to the top of driven gear (15), protective housing (18) are close to the below inboard of access hole (19) and are provided with fixed plate (20), sealed lid (21) set up the inside at access hole (19), the both sides of sealed lid (21) are fixed with sealed pad (22), sealed pad (22) dock with slot (23) of access hole (19) both sides, butt joint hole (24) have been seted up to the bottom of slot (23), an oil filling pipe (25) is connected to the inside of the butt joint hole (24), and the fixing bolt (26) penetrates through the middle of the sealing cover (21) and is in butt joint with the fixing plate (20).

2. The automatic lifting function device for the vehicle ladder of the large dump truck for the open pit coal mine according to claim 1, wherein: the sliding grooves (7) are symmetrically and parallelly distributed about the vertical center line of the base (1), and the cross section of each sliding groove (7) is in a T-shaped structure.

3. The automatic lifting function device for the vehicle ladder of the large dump truck for the open pit coal mine according to claim 1, wherein: the connecting frame (10) is V-shaped, the connecting frame (10) and the threaded sleeve (9) are vertically distributed, and the screw rod (5) at one end of the connecting frame (10) is parallel to the ladder climbing rod frame (11) at the other end of the connecting frame (10).

4. The automatic lifting function device for the vehicle ladder of the large dump truck for the open pit coal mine according to claim 1, wherein: the limiting protrusion (14) is in an isosceles triangle shape, the cross section size of the limiting protrusion (14) is matched with that of the guide groove (12), and the limiting protrusion (14) forms a sliding structure through the guide groove (12) and the ladder stand frame (11).

5. The automatic lifting function device for the vehicle ladder of the large dump truck for the open pit coal mine according to claim 1, wherein: the sealing gasket (22) is symmetrically distributed about the central line of the sealing cover (21), the sealing gasket (22) is in a circular truncated cone-shaped structure, and the size of the sealing gasket (22) is matched with that of the slot (23).

6. The automatic lifting function device for the vehicle ladder of the large dump truck for the open pit coal mine according to claim 1, wherein: the top of oiling pipe (25) and protective housing (18) is vertical distribution, and the axial lead of oiling pipe (25) and the axial lead of slot (23) coincide each other to be interference fit between oiling pipe (25) and butt joint hole (24).