CN213807117U

CN213807117U - Door locking device of underground trackless equipment

Info

Publication number: CN213807117U
Application number: CN202121483009.4U
Authority: CN
Inventors: 杜树浩; 崔林平; 曹鑫; 王善健; 吴楠
Original assignee: Shanjin Heavy Industry Co ltd
Current assignee: Shanjin Heavy Industry Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-07-27
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a door locking device of underground trackless equipment, which belongs to the technical field of door locking and mainly solves the problems of high failure rate, poor reliability and easy opening and closing of a door of the door locking device; the fixed shaft is connected with the outer side handle and the handle positioning plate; the fixed shaft is connected with the positioning plate and the locking plate; wear-resistant washers are arranged among the locking plate, the shaft sleeve and the wear-resistant sleeve; the positioning plate and the locking plate are connected with the inner handrail; the fixed shaft is in threaded connection with a locking nut, and a spring is sleeved on the fixed shaft; the inner side of the cab door is provided with a handrail positioning plate; the inner side of the cab frame is connected with a vehicle door locking and adjusting plate. The utility model discloses a nimble of driver's cabin door is opened and is closed, has both increased driver and crew's comfort level, has improved security and the reliability that underground trackless equips the door structure again greatly.

Description

Door locking device of underground trackless equipment

Technical Field

The utility model belongs to the technical field of the door locking, concretely relates to door locking device of underground trackless equipment.

Background

Along with the continuous development of engineering mechanical equipment, especially for some trackless equipment applied to underground mines with severe working conditions, a closed cab or a semi-closed cab is mostly adopted. The door locking device on the cab is an important component, and not only can be flexibly opened, but also the phenomenon that the door is abnormally opened and closed in the running process is ensured not to occur. At present, two types of door locking devices of underground trackless equipment are mainly used, one type is that the door locking device on a surface vehicle is applied to the underground trackless equipment, because the application working condition of the door locking device on the surface vehicle is designed according to the highway environment, after the door locking device is applied to the underground trackless equipment, because the underground environment is severe, the door locking device on the surface vehicle is corroded and rusted due to environmental factors such as high water vapor and chloride ion content in the air, high temperature and the like, and the structure is failed; on the other hand, most underground trackless equipment is designed to be a rigid structure, the road surface condition is poor, the vibration of a vehicle body is large, and the structural failure is caused due to the fact that the components of the vehicle door locking device on the ground vehicle vibrate for a long time and are installed and dislocated. The second is that simple to use's articulated round pin axle, the outside design door handle of driver's cabin, locking cardboard of inboard coaxial arrangement, this structure lean on fixed cover and the clearance adjustment locking between the round pin axle, but in the use, along with the increase of frequency of application, the clearance only can be bigger and bigger, leads to the structure to shake under the condition of jolting in the vehicle, open at variable times, vibrations noise also can be bigger and bigger in the use moreover. On the other hand, it is very inconvenient to open the door from the cab in such a structure, and even a hand needs to be extended out of the door to open the door, which increases many unsafe factors. Therefore, the two vehicle door locking devices have high failure rate and poor reliability, safety accidents are easily caused, the effective service time of underground trackless equipment is seriously shortened, and safety accidents such as extrusion and the like are easily caused by opening and closing of the vehicle door in the driving process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough and provide a door locking device of underground trackless equipment.

The utility model provides a technical scheme as follows: a vehicle door locking device of underground trackless equipment comprises a cab vehicle door connected with a cab vehicle frame, an outer side handle and a fixed shaft, wherein the outer side of the cab vehicle door is connected with the outer side handle through a handle positioning plate and a handle connecting plate; the automobile door fixing device is characterized in that the fixing shaft is formed by connecting a square shaft, a round shaft connected with the square shaft and a threaded shaft, the automobile door of a cab is connected with the round shaft through a shaft sleeve, and a wear-resistant sleeve is arranged between the shaft sleeve and the round shaft; the end part of the square shaft is connected with the outer side handle and the handle positioning plate; the square shaft is connected with the positioning plate and the locking plate through square holes in the positioning plate and the locking plate; wear-resistant washers are arranged among the locking plate, the shaft sleeve and the wear-resistant sleeve; the positioning plate and the locking plate are connected with the inner handrail; the locking nut is connected to the threaded shaft in a threaded manner, and a spring is sleeved on the threaded shaft between the locking nut and the positioning plate; the inner side of the cab door is provided with an armrest positioning plate for supporting and positioning an inner armrest; the inner side of the cab frame is connected with a vehicle door locking adjusting plate matched with the locking plate.

Preferably, the lower side of the vehicle door locking adjusting plate is a chamfer, and an inclination angle matched with the chamfer on the lower side of the vehicle door locking adjusting plate is arranged at the end, close to the vehicle door locking adjusting plate, of the locking plate.

Preferably, the shaft sleeve is connected with a grease nozzle, the shaft sleeve and the wear-resistant sleeve are both provided with grease channels which are communicated with each other, and the grease nozzle is communicated with the grease channel in the shaft sleeve.

Preferably, the threaded shaft is further sleeved with a gasket and a flat pad, one end of the spring is attached to the gasket, the gasket is attached to the positioning plate, the other end of the spring is attached to the flat pad, and the flat pad is connected with the locking nut.

The utility model has the advantages that: the utility model discloses be applied to the trackless equipment in the abominable, secret mine of operating mode. The inner handrail, the positioning plate and the locking plate are combined into a whole, the comfort of a driver in the driving process can be improved by the inner handrail, and the locking plate also achieves the effect of locking the door of the cab; and after the cab door is closed, the cab door can be continuously locked by the gravity of the inner handrail, so that the safety and the reliability of the underground trackless equipment door structure are greatly improved. The outside handle links together with the fixed axle, and the fixed axle passes through the quad slit on locating plate, the locking board and links to each other with locating plate, locking board, is in the same place outside handle and inside handrail good combination, realizes inside handrail and outside handle synchronous rotation, has realized the flexibility of driver's cabin door and has opened and close. In addition, the outer side handle and the inner handrail are attached together through the pretightening force of the spring by the spring, so that the abrasion between the shaft sleeve and the fixed shaft is reduced, the adjustment can be flexibly performed, and abnormal sound or mechanism failure caused by overlarge clearance is prevented. The wear-resistant sleeve is arranged, so that the wear between the fixed shaft and the shaft sleeve is reduced, and the reliability and the effective working time of the device are improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a top view of the present invention;

fig. 4 is a schematic view of the inner side structure of the present invention;

fig. 5 is a schematic structural view of the fixing shaft of the present invention;

FIG. 6 is a side view of FIG. 5;

fig. 7 is the structure schematic diagram of the door lock adjusting plate of the utility model.

In the figure: 1: cab door, 2: outside handle, 3: handle locating plate, 4: cab frame, 5: flat cushion, 6: lock nut, 7: spring, 8: inner armrest, 9: positioning plate, 10: locking plate, 11: wear-resistant gasket, 12: shaft sleeve, 13: wear-resistant sleeve, 14: fixed axis, 1401: square axis, 1402: round shaft, 1403: threaded shaft, 15: grease nipple, 16: door lock regulating plate, 17: armrest positioning plate, 18: handle attachment plate, 19: a gasket.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figures 1-7, the door locking device of the underground trackless equipment comprises a cab door 1 connected with a cab frame 4, an outer side handle 2 and a fixed shaft 14, wherein the outer side of the cab door 1 is connected with the outer side handle 2 through a handle positioning plate 3 and a handle connecting plate 18.

The fixed shaft 14 is formed by connecting a square shaft 1401, a round shaft 1402 connected to the square shaft 1401 and a threaded shaft 1403, the cab door 1 is connected with the round shaft 1402 of the fixed shaft 14 through a shaft sleeve 12, a wear-resistant sleeve 13 is arranged between the shaft sleeve 12 and the round shaft 1402, the round shaft 1402 is in contact with the wear-resistant sleeve 13, and the round shaft 1402 and the wear-resistant sleeve 13 can flexibly and relatively rotate. The grease nipple 15 is installed on the shaft sleeve 12 through threads, grease passages which are mutually communicated are arranged in the shaft sleeve 12 and the wear-resistant sleeve 13, the grease nipple 15 is communicated with the grease passages in the shaft sleeve 12, and lubricating grease enters a gap between the round shaft 1402 and the wear-resistant sleeve 13 through the grease passages in the grease nipple 15, the shaft sleeve 12 and the wear-resistant sleeve 13, so that the effects of lubricating and reducing wear between the grease nipple 15 and the wear-resistant sleeve 13 are achieved.

The end of the square shaft 1401 of the fixed shaft 14 is connected with the outer handle 2 and the handle positioning plate 3. The square shaft 1401 of the fixed shaft 14 is connected with the positioning plate 9 and the locking plate 10 through square holes on the positioning plate 9 and the locking plate 10. And a wear-resistant washer 11 is arranged between the locking plate 10 and the shaft sleeve 12 and the wear-resistant sleeve 13. The positioning plate 9 and the locking plate 10 are connected with the inner handrail 8. When the outer handle 2 rotates, the handle positioning plate 3, the handle connecting plate 18 and the fixed shaft 14 are driven to rotate together, the square shaft 1401 of the fixed shaft 14 drives the positioning plate 9 and the locking plate 10 to rotate together, and the positioning plate 9 and the locking plate 10 drive the inner handrail 8 to rotate. Therefore, the outer handle 2, the handle positioning plate 3, the positioning plate 9, the locking plate 10 and the inner handrail 8 realize synchronous rotation.

Be equipped with the screw on the screw thread axle 1403 of fixed axle 14, the cover has spring 7 on the screw thread axle 1403, packing ring 19, flat pad 5, the one end and the 19 laminating of packing ring of spring 7, packing ring 19 and the laminating of locating plate 9, the other end and the flat 5 laminating of packing ring of spring 7, threaded connection lock nut 6 on the screw thread axle 1403, flat pad 5 links to each other with lock nut 6, through adjusting lock nut 6 in the position of screw thread axle 1403, can adjust spring force size of spring 7, finally realize adjusting inside handrail 8, locking plate 10, wear-resisting packing ring 11, clearance fit between the handle locating plate 3.

The inner side of the cab door 1 is provided with an armrest positioning plate 17 for supporting and positioning the inner armrest 8, when the cab door 1 is in a locked state and the inner armrest 8 and the locking plate 10 are in a horizontal state, the armrest positioning plate 17 is in contact with the lower plane of the locking plate 10, and the effect of supporting the inner armrest 8 to bear the arm pressure of a driver is achieved. When the cab door 1 is opened, the armrest positioning plate 17 can play a role in limiting the rotation angle of the inner armrest 8, so that the door opening is prevented from being influenced by the overlarge rotation angle of the inner armrest 8.

Door locking regulating plate 16 is connected to 4 inboard connections in driver's cabin door frame, door locking regulating plate 16 downside is the chamfer, locking plate 10 is close to 16 ends of door locking regulating plate and is equipped with the chamfer assorted inclination with 16 downside of door locking regulating plate, like this when locking driver's cabin door 1, even the door is not closely closed, locking plate 10 can lock the door gradually along the chamfer of door locking regulating plate 16, when driver's cabin door 1 locks,

locking plate

10 and 16 vertical planes of door locking regulating plate closely contact.

During locking, a driver drives the inner handrail 8, the positioning plate 9 and the locking plate 10 rotate together, the square holes in the locking plate 10 and the positioning plate 9 drive the upper shaft 1401 on the fixed shaft 14 to rotate together, and the outer handle 2 and the handle positioning plate 3 also rotate together with the fixed shaft 14. When the outside handle 2 is in the horizontal position shown in fig. 1, the cab door 1 is in a locked state, and the locking plate 10 and the door lock adjusting plate 16 are closely attached together.

In the driving process, the driver can place the arm on the inside armrest 8, so that the driving comfort can be improved, and the driving fatigue can be reduced. Even if the road surface jolts in the vehicle operation process, inside handrail 8 can also lean on gravity to closely laminate on handrail locating plate 17, even the change of personnel's arm force action point, can not push up inside handrail 8 easily.

The locking nut 6 compresses the spring 7 to press the locking plate 10 to the wear-resistant washer 11 through the positioning plate 9, and the wear-resistant washer 11 can reduce the mutual friction loss between the locking plate 10 and the shaft sleeve 12. Therefore, the spring force of the compression spring 7 can be adjusted by adjusting the position of the locking nut 6, the adhesion degree of the locking plate 10 and the wear-resistant washer 11 is adjusted, abnormal sound in the operation process can be reduced, and meanwhile, the friction force between the locking plate 10 and the wear-resistant washer 11 is in the range which is easy to control by a driver.

Claims

1. A vehicle door locking device of underground trackless equipment comprises a cab vehicle door (1) connected with a cab vehicle frame (4), an outer side handle (2) and a fixed shaft (14), wherein the outer side of the cab vehicle door (1) is connected with the outer side handle (2) through a handle positioning plate (3) and a handle connecting plate (18); the automobile cab door fixing device is characterized in that the fixing shaft (14) is formed by connecting a square shaft (1401), a round shaft (1402) connected to the square shaft (1401) and a threaded shaft (1403), the cab door (1) is connected with the round shaft (1402) through a shaft sleeve (12), and a wear-resistant sleeve (13) is arranged between the shaft sleeve (12) and the round shaft (1402); the end part of the square shaft (1401) is connected with the outer side handle (2) and the handle positioning plate (3); the square shaft (1401) is connected with the positioning plate (9) and the locking plate (10) through square holes on the positioning plate (9) and the locking plate (10); a wear-resistant washer (11) is arranged between the locking plate (10) and the shaft sleeve (12) and the wear-resistant sleeve (13); the positioning plate (9) and the locking plate (10) are connected with the inner handrail (8); a locking nut (6) is connected to the threaded shaft (1403) in a threaded manner, and a spring (7) is sleeved on the threaded shaft (1403) between the locking nut (6) and the positioning plate (9); an armrest positioning plate (17) for supporting and positioning an inner armrest (8) is arranged on the inner side of the cab door (1); the inner side of the cab frame (4) is connected with a vehicle door locking adjusting plate (16) matched with the locking plate (10).

2. A door locking device for an underground trackless device according to claim 1, characterized in that the lower side of the door locking adjusting plate (16) is chamfered, and the end of the locking plate (10) close to the door locking adjusting plate (16) is provided with an inclination angle matched with the chamfer of the lower side of the door locking adjusting plate (16).

3. A door locking device for an underground trackless device according to claim 1, characterized in that the bushing (12) is connected with a grease nipple (15), the bushing (12) and the wear-resistant sleeve (13) are respectively provided with a grease channel which are communicated with each other, and the grease nipple (15) is communicated with the grease channel in the bushing (12).

4. A door locking device of an underground trackless device according to claim 1, characterized in that the threaded shaft (1403) is further sleeved with a washer (19) and a flat pad (5), one end of the spring (7) is attached to the washer (19), the washer (19) is attached to the positioning plate (9), the other end of the spring (7) is attached to the flat pad (5), and the flat pad (5) is connected to the locking nut (6).