CN214818187U

CN214818187U - Sleeve tool for overhauling subway vehicle

Info

Publication number: CN214818187U
Application number: CN202120266803.7U
Authority: CN
Inventors: 徐晓锋; 孔德欣; 郭枫; 高帅; 李思瑶; 冯涛
Original assignee: Shenyang China Rail Transit Equipment Co ltd
Current assignee: Shenyang China Rail Transit Equipment Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-23
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a subway vehicle overhauls and uses box end, including 2 parts of upper and lower detachable, upper portion is the box end connector, and the lower part is the cover barrel body, the box end connector with the cover barrel body pass through the hexagon fitting surface and connect, the box end connector drive the cover barrel body rotatory, box end connector upper portion be ratchet spanner interface, the lower part is hexagonal hole in the second, cover barrel body upper portion be outer hexagon connector, cover barrel body inside from last down process into one section round hole, cover barrel body lower part is hexagonal hole in first, hexagonal hole size and lock nut size looks adaptation in first. The sleeve tool is simple in structure, easy to machine and convenient and reliable to operate, avoids the collision of hands of operators, and solves the problem that the fasteners of special installation modes are fastened or loosened under the condition of narrow space.

Description

Sleeve tool for overhauling subway vehicle

Technical Field

The utility model relates to a subway vehicle overhauls instrument technical field.

Background

When the metro vehicle is subjected to frame overhaul, parts of a brake system need to be overhauled, normal debugging needs to be carried out after the metro vehicle is overhauled and loaded, and a valve pressure design value needs to be reset in the debugging process. The air-weight valve is not limited by space when the pressure is adjusted under the vehicle, the debugging pressure is set conveniently, but after the vehicle is loaded, the air-weight valve set value adjusting tool of the current braking system is a general tool in the market due to the limitation of other peripheral equipment, the general tool can be used when the air-weight valve set value is adjusted, the size of the wrench is too long, the wrench cannot be operated according to a normal operation angle, the wrench is released in the operation process, and the hand damage of an operator, the damage of the peripheral equipment by the tool or the damage of a valve fastener can be caused.

Therefore, a special sleeve tool is urgently needed to solve the problems, so that the overhauling operation is simple, safe and reliable.

Disclosure of Invention

In order to solve at whole car braking system performance debugging in-process, utilize universal tool to adjust empty and heavy valve setting value process difficulty, cause operating personnel hand to collide with easily, the damage of other equipment and the fastener of this valve to damage technical problem such as, the utility model provides a subway vehicle overhauls and uses sleeve instrument.

The utility model discloses the technical scheme who adopts is sleeve instrument for subway vehicle overhauls, including 2 parts of upper and lower detachable, upper portion is the muffjoint head, and the lower part is the cover barrel body, the muffjoint head with the cover barrel body pass through the hexagon fitting surface and connect, the muffjoint head drive the cover barrel body rotatory, muffjoint head upper portion be ratchet spanner interface, the lower part is hexagonal hole in the second, cover barrel body upper portion be outer hexagon connector, cover barrel body inside from last down process into one section round hole, cover barrel body lower part is first interior hexagonal hole, first interior hexagonal hole size and lock nut size looks adaptation.

Furthermore, a second inner hexagonal hole at the lower part of the sleeve connector is matched with the outer hexagonal connector at the upper part of the sleeve body in size. When the sleeve tool is used, the sleeve body is sleeved firstly, then the sleeve connector is sleeved on the sleeve body, and the sleeve connector is rotated to drive the sleeve body to rotate.

Further, the diameter of the round hole is larger than the outer diameter of the adjusting bolt head. In order to be sleeved into the empty and heavy valve conveniently, when the sleeve body rotates to drive the locking nut, the set value adjusting bolt cannot be touched.

The utility model has the advantages that: the sleeve tool is specially manufactured according to the structure of the empty and heavy valve, is simple in structure, easy to machine and convenient and reliable to operate, avoids the collision of hands of operators, and solves the problem that the fasteners of special installation modes are fastened or loosened under the condition that the space is narrow. When the locking nut is rotated, the set value adjusting bolt is not touched.

Drawings

Fig. 1 is a structural view of an empty and heavy valve.

Fig. 2 is the utility model discloses sleeve tool structure chart is used in railcar maintenance.

Fig. 3 is a view in the direction of a-a of fig. 2.

Figure 4 is the utility model discloses sleeve instrument appearance drawing is used in railcar maintenance.

Figure 5 is the utility model discloses subway vehicle overhauls uses the inside cross-sectional view of sleeve instrument.

Fig. 6 is an outline view of the sleeve body of the present invention.

Fig. 7 is an internal cross-sectional view of the sleeve body of the present invention.

Fig. 8 is an external view of the sleeve connector of the present invention.

Fig. 9 is an internal cross-sectional view of the sleeve connector of the present invention.

The labels in the figure are: 1-empty and heavy valve body, 2-locking nut, 3-set value adjusting bolt, 4-sleeve tool, 5-sleeve connector, 6-sleeve body, 7-external hexagonal connector, 8-round hole, 9-first internal hexagonal hole, 10-ratchet wrench interface and 11-second internal hexagonal hole.

Detailed Description

The present invention will now be further described with reference to fig. 1 to 9, which are shown in fig. 1, and the empty and heavy valve diagram includes an empty valve body 1, a lock nut 2, and a set value adjusting bolt 3. When the performance of the whole vehicle brake system is debugged, the set value of the empty and heavy valve needs to be adjusted through the set value adjusting bolt 3, and the locking nut 2 is firstly loosened to adjust the set through the set value adjusting bolt 3. Because of this kind of bolt locking mode, can't operate lock nut 2 with normal sleeve, can only operate with open-end wrench or shifting wrench, because the operating space around the valve body is narrow and small, it is inconvenient to operate.

Aiming at the problems, the invention provides a special sleeve tool as shown in figures 2 and 3 for operation, wherein the sleeve tool 4 comprises an upper and a lower detachable 2 parts, the upper part is a sleeve connector 5, and the lower part is a sleeve body 6. The lower part of the sleeve tool 4 is processed into a first hexagon socket hole 9, and the size of the first hexagon socket hole 9 is matched with that of the locking nut 2. The size of the round hole 8 in the sleeve is larger than the external diameter of the hexagon head of the set value adjusting bolt 3, the sleeve is only in contact with the locking nut 2, and the locking nut 2 can be fastened and loosened. The upper part of the sleeve is provided with an interface matched with the ratchet wrench for use, and the sleeve is operated by the ratchet wrench to meet the requirements of safety, reliability and convenience.

Fig. 4 and 5 are the external and internal cross-sectional views of the sleeve tool 4 of the present invention, as shown in fig. 4, including the upper sleeve connector 5 and the lower sleeve body 6, the sleeve connector 5 is connected to the sleeve body 6 through a hexagonal fitting surface.

Fig. 6 and 7 are external and internal cross-sectional views of the sleeve body 6, and the upper part of the sleeve body 6 is processed into an external hexagonal connector 7, and is connected with the sleeve connector 5 through the external hexagonal connector 7. The inside of the sleeve body 6 is provided with a round hole 8 with a certain depth from top to bottom, and the diameter of the round hole 8 is larger than the outer diameter of the hexagon head of the set value adjusting bolt 3. The lower part of the sleeve body 6 is processed into a first hexagon socket 9, and the size of the first hexagon socket 9 corresponds to that of the locking nut 2.

Fig. 8 and 9 are the external and internal cross-sectional views of the socket joint 5, the upper part of the socket joint 5 is processed into a socket for connection with a ratchet wrench, the socket is a ratchet wrench socket 10, the lower part is processed into a second hexagon socket 11, and the size of the second hexagon socket 11 is matched with the size of the external hexagon joint on the upper part of the socket body 6.

When the locking nut 2 is operated by the socket tool 4, the socket body 6 is firstly inserted from the upper part of the set value adjusting bolt 3 until the first hexagon socket 9 at the lower part of the socket body 6 is sleeved on the locking nut 2, then the socket connector 5 is placed on the socket body 6, and finally the plug of the ratchet wrench is inserted on the socket connector 5. The ratchet wrench is operated, the sleeve body 6 is driven to rotate through the sleeve connector 5, and therefore the locking nut 2 is operated to be fastened or loosened.

Claims

1. Subway vehicle overhauls uses sleeve instrument, its characterized in that: including 2 parts of upper and lower detachable, upper portion is the box head, and the lower part is the cover barrel, the box head with the cover barrel pass through the hexagon fitting surface and connect, the box head drive the cover barrel rotatory, box head upper portion be ratchet spanner interface, the lower part is hexagonal hole in the second, cover barrel upper portion be outer hexagonal connector, cover barrel internal portion from last one section round hole of down processing into, cover barrel lower part be first interior hexagonal hole, first interior hexagonal hole size and lock nut size looks adaptation.

2. The sleeve tool for metro vehicle inspection according to claim 1, wherein: the second inner hexagonal hole at the lower part of the sleeve connector is matched with the outer hexagonal connector at the upper part of the sleeve body in size.

3. The sleeve tool for metro vehicle inspection according to claim 1, wherein: the diameter of the round hole is larger than the outer diameter of the adjusting bolt head.