CN202944342U

CN202944342U - Extension brake box for mine electric wheel self-dumping truck

Info

Publication number: CN202944342U
Application number: CN 201220702833
Authority: CN
Inventors: 陈清理; 曾广金; 陈小林; 唐飒君; 蔡耀成
Original assignee: Xiangtan Electric Manufacturing Co Ltd
Current assignee: Xiangtan Electric Manufacturing Co Ltd
Priority date: 2012-12-19
Filing date: 2012-12-19
Publication date: 2013-05-22
Anticipated expiration: 2022-12-19

Abstract

The utility model discloses an extension brake box for a mine electric wheel self-dumping truck. The extension brake box is characterized by comprising a box door, a box shell, a sealing strip and a hinge, wherein a box opening is arranged at the upper surface of the box shell; a convex edge is arranged at the edge of the box opening; the hinge is divided into a female sleeve and a male sleeve; the male sleeve is welded at the upper surface of the box shell near the convex edge; the female sleeve is welded at the side of the box door; the female sleeve of the box door is inserted into the male sleeve; the sealing strip is of a self-clamping type and embedded in the convex edge of the box opening; a door lock is arranged on the box door; and a spring bolt of the door lock can rotate relative to the box door. The convex edge is arranged at the edge of the box opening of the upper surface of the box shell; the self-clamping sealing strip is embedded on the convex edge, and then the box door is pressed on the sealing strip. Thus, the sealing effect can be ensured; the processing difficulty of the extension brake box is reduced; the cost of the extension brake box is reduced; and the work efficiency can be improved.

Description

A kind of expansion brake box for the mine electric wheel self-discharging vehicle

Technical field

The utility model relates to a kind of expansion brake box for the mine electric wheel self-discharging vehicle.

Background technology

As shown in Figure 1, 2, the existing expansion brake box that is used for the mine electric wheel self-discharging vehicle is equipped with two DC contactor for the expansion braking in case, the expansion brake box is contained on the roof deck of electric drive wheel, be subject to the erosion of dust, rainwater throughout the year, therefore very high to the seal request of casing.Existing seal approach is: sealing band 5 adopts 3mm thick, the sponge rubber plate of wide 17.5mm, sealing band 5 is fixed in the groove of case shell 4 frames with the FN303 neoprene again, utilize hook 1 and the mutual fastening of the hasp on case shell 46 on chamber door 2, make the double-deck frame press seal bar 5 of chamber door 2 come seal case.Referring to accompanying drawing 1, during general assembly, because the amount of compression of 2 pairs of sealing bands 5 of chamber door is larger, the leak tightness of casing is just better, thus hasp 6 or snap close must have one interim equipped, work efficiency is low like this, difficulty is large.Add again in addition to make that to damage the border abominable, sealing band 5 is again to adopt gluingly, so be easy to fall down, then after assembling, leak tightness is difficult to restore, and causes dust very large to the corrosion failure of DC contactor element in case, and then affects the normal operation of equipment.

The utility model content

In order to solve the problems of the technologies described above, the utility model provides a kind of and guarantees that leak tightness is fine, and processing is simple, the expansion brake box that is used for the mine electric wheel self-discharging vehicle of high efficiency.

The technical solution of the utility model is: comprise chamber door, case shell, sealing band and hinge, the upper surface of described case shell is provided with the case mouth, and the edge of case mouth is provided with chimb; Described hinge is divided into public cover and mother set, and wherein mother set is welded on case shell upper surface near the chimb place, and public cover is welded on the side of chamber door, and the public affairs of chamber door cover inserts in mother set; Described sealing band is self-clamp type, is embedded on the chimb of case mouth; Chamber door is provided with door lock, and the dead bolt of door lock can rotate relative to chamber door.

The beneficial effects of the utility model are: the utility model case shell upper surface case mouth edge is provided with chimb, the self-clamp type sealing band is embedded on chimb, again chamber door is pressed on sealing band, can guarantee sealing effectiveness like this, and reduced difficulty of processing of the present utility model, reduced cost of the present utility model, and can increase work efficiency.

Description of drawings

Fig. 1 is the front view of existing expansion brake box for the mine electric wheel self-discharging vehicle.

Fig. 2 is A-A cutaway view in Fig. 1.

Fig. 3 is front view of the present utility model.

Fig. 4 is C-C cutaway view in Fig. 3.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Fig. 3,4, the utility model comprises chamber door 2, case shell 4, sealing band 5 and hinge 3, and the upper surface of described case shell 4 is provided with the case mouth, and the edge of case mouth is provided with chimb 41; Described hinge 3 is divided into public cover 31 and mother set 32, and wherein mother set 32 is welded on case shell 4 upper surfaces near chimb 41 places, and public cover 31 is welded on the side of chamber door 2, and the public affairs of chamber door 2 cover 31 inserts in mother set 32; Described sealing band 5 is self-clamp type, is embedded on the chimb 41 of case mouth; Sealing band 5 is installed not only firmly and amount of compression but also large, therefore can directly compress with chamber door 2.Chamber door 2 is provided with two door locks 7, and the dead bolt 71 of door lock 7 can rotate relative to chamber door 2.Rotate the dead bolt 71 of door lock 7, make in its edge that is stuck in case shell 4, can make chamber door press seal bar 5, reach the effect of sealing; Whole fitting process is simple, efficient is high.

Claims

1. expansion brake box that is used for the mine electric wheel self-discharging vehicle, it is characterized in that: comprise chamber door, case shell, sealing band and hinge, the upper surface of described case shell is provided with the case mouth, and the edge of case mouth is provided with chimb; Described hinge is divided into public cover and mother set, and mother set is welded on case shell upper surface near the chimb place, and public cover is welded on the side of chamber door, and the public affairs of chamber door cover inserts in mother set; Described sealing band is self-clamp type, is embedded on the chimb of case mouth; Chamber door is provided with door lock, and the dead bolt of door lock can rotate relative to chamber door.