CN211890639U - Dismounting device for piston of unit brake of diesel locomotive - Google Patents

Abstract

The utility model belongs to the technical field of internal-combustion engine maintenance device, specifically be a dismounting device for diesel locomotive unit stopper piston, including piston mounting, extensible member and fixed chassis, the piston mounting is used for being in the same place with the piston is fixed, and fixed chassis is used for fixed whole device, and the extensible member drives through stretching or contracting and drives the piston mounting and reciprocate. The piston fixing piece is a section of threaded head arranged longitudinally; the telescopic piece comprises a telescopic rod which is longitudinally arranged and a driving mechanism which drives the telescopic rod to move up and down, the lower end of the threaded head is coaxially connected with the telescopic rod through a movable connecting piece, and the threaded head can rotate around the axis of the threaded head; the extensible member is installed on the locating rack, and the lower end of the locating rack is installed on the fixed bottom frame. The device can realize the harmless dismouting of piston, can accomplish the maintenance and the change of stopper piston simultaneously under the condition of not dismantling the unit stopper, brings very big facility for maintenance work, improves work efficiency simultaneously.

Description

Dismounting device for piston of unit brake of diesel locomotive

Technical Field

The utility model belongs to the technical field of internal-combustion engine maintenance device, specifically be a dismounting device for diesel locomotive unit stopper piston.

Background

The locomotive unit brake is an unimportant component of a locomotive running part, is used for applying air brake to a locomotive, has great influence on the safety and reliability of the locomotive, and workers need to overhaul a piston of the brake regularly, while the bottom surface of the piston brake is not easy to see. Because the stopper weight is great, the phenomenon of colliding with appears easily when dismantling, and needs many people to cooperate the dismantlement. In addition, because no special disassembling tool is provided, the piston and the sealing ring are easily damaged when the piston is disassembled. The above causes that the disassembly and maintenance of the unit brake are very difficult, and the working efficiency of maintenance personnel is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dismounting device for diesel locomotive unit stopper piston, the device can be under the circumstances of not dismantling the unit stopper safe dismantlement or installation piston, and whole process only needs one person to operate to improve the maintenance efficiency of unit stopper.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dismounting device for diesel locomotive unit stopper piston, includes piston mounting, extensible member and fixed chassis, the piston mounting is used for being in the same place with the piston is fixed, and fixed chassis is used for fixed whole device, and the extensible member drives the piston mounting through stretching or contracting and reciprocates. The piston fixing piece is a section of longitudinally arranged thread head which is matched with an inner screw hole at the bottom of the piston; the telescopic piece comprises a telescopic rod which is longitudinally arranged and a driving mechanism which drives the telescopic rod to move up and down, the lower end of the threaded head is coaxially connected with the telescopic rod through a movable connecting piece, and the threaded head can rotate around the axis of the threaded head; the extensible member is installed on the locating rack, and the lower end of the locating rack is installed on the fixed bottom frame.

Among the above-mentioned technical scheme, fixed chassis fixes whole dismounting device in unit stopper below, and the screw thread head of telescopic link top closes with the screw hole of piston bottom from the area soon to be in the same place screw thread head and piston are fixed, make the telescopic link retract downwards through actuating mechanism this moment, under the pulling force of telescopic link, the unit stopper is pulled out perpendicularly to the piston, and this maintenance process need not dismantle the unit stopper, and simultaneously, the process that the piston was pulled out can not damage because of accepting the inequality. By operating the above processes in reverse, the piston can be safely installed into the unit brake, which brings great convenience to the maintenance of the unit brake.

Preferably, the driving mechanism comprises an engaging wheel arranged on the positioning frame and a rocking handle for controlling the engaging wheel to rotate; the positioning frame is longitudinally provided with a guide shaft sleeve, the telescopic rod movably penetrates through the guide sleeve, one side of the telescopic rod, which is contacted with the meshing wheel, is provided with meshing teeth, and the meshing wheel drives the telescopic rod to move up and down. Adopt above-mentioned mechanical structure's drive arrangement, can realize manually operation, this maintenance environment that accords with unit stopper more, simultaneously, adopt manual mechanism, can control the weight of whole device, the staff of being convenient for carries.

Preferably, the movable connecting piece comprises a connecting sleeve fixedly arranged at the lower end of the threaded head, a connecting shaft sleeve is arranged at the lower part of the connecting sleeve, the top end of the telescopic rod is connected with the connecting shaft sleeve, the threaded head can freely rotate through the structure, and the threaded head and the piston can be conveniently screwed.

Preferably, the periphery of the connecting sleeve is provided with an engaging part, the upper part of the positioning frame is provided with a positioning clamping piece matched with the engaging part, and the connecting sleeve is moved downwards, so that the positioning clamping piece can be engaged with the engaging part on the connecting sleeve, and the axial movement of the connecting sleeve is limited. After the connecting sleeve is clamped into the positioning clamping piece, the freedom degree of the connecting sleeve is limited, the piston can be held by a hand at the moment, the piston on the thread head is detached, and the piston which is overhauled or new can be installed on the thread head.

Preferably, the fixed chassis comprises an adjustment bracket; the adjusting frame comprises two parallel longitudinal rods which are arranged in bilateral symmetry and a transverse rod which is transversely arranged between the two longitudinal rods, and sliding sleeves are arranged at two ends of the transverse rod and are arranged on the longitudinal rods through the sliding sleeves; a sliding sleeve is sleeved on the transverse rod, connecting shafts perpendicular to the transverse rod are arranged on two sides of the sliding sleeve, and the lower end of the positioning frame is movably connected with the connecting shafts; all set up the locking piece on the sliding sleeve. When placing the device, will fix the chassis and roughly put below unit stopper, after fixing fixed chassis, remove the locating rack, this moment under the effect of slip cap, the locating rack can remove along longitudinal rod and transverse bar on the alignment jig, thereby can adjust, the position of screw thread head, make screw thread head and telescopic link can keep vertical state, and make the accurate screw of predetermineeing that inserts the piston bottom of screw thread head, thereby make telescopic link, screw thread head and piston keep vertical removal.

Preferably, the fixed underframe further comprises a front chuck and a pedal handle, the front chuck is located at the front end of the adjusting frame, the front chuck is used for clamping the waist portion of the rail, the front portion of the fixed underframe is fixed through the rail, the pedal handle is used for treading, and a worker fixes the rear portion of the fixed underframe through treading the pedal handle.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic plan view of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of an embodiment of the present invention.

Fig. 3 is a schematic view of a connection structure of the telescopic rod and the screw head in fig. 2.

Fig. 4 is a schematic view of the structure of fig. 2 showing the installation structure of the driving mechanism and the telescopic rod on the positioning frame.

Fig. 5 is a schematic structural view of a fixed chassis in the structure shown in fig. 2.

In the figure, a fixed underframe 1, a positioning frame 2, an expansion link 3, a thread head 4, a connecting sleeve 5, a driving mechanism 6, a front chuck 11, a pedal handle 12, an adjusting frame 13, a positioning fastener 21, a guide shaft sleeve 22, a meshing tooth 31, a clamping part 51, a connecting shaft sleeve 52, a meshing wheel 61, a rocking handle 62, a fixed shaft sleeve 63, a longitudinal rod 131, a transverse rod 132, a sliding sleeve 133, a locking piece 134 and a connecting shaft 135.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Fig. 1-5 illustrate an embodiment of the present invention, a disassembly apparatus for a piston of a unit brake of a diesel locomotive. The device comprises a piston fixing piece for fixing the piston, wherein the fixing piece is a section of longitudinally arranged thread head 4, the lower end of the thread head 4 is fixedly connected with a connecting sleeve 5, the lower end of the connecting sleeve 5 is provided with a connecting shaft sleeve 52, the top end of a telescopic rod 3 is fixedly connected with the connecting shaft sleeve 52, and the thread head 4 and the telescopic rod 3 are coaxial, so that the thread head 4 can freely rotate around the axis of the thread head 4.

The device also comprises a fixed underframe 1, the fixed underframe 1 is used for fixing the whole device, as shown in figure 2, a telescopic rod 3 is arranged on an n-type positioning frame 2, and the lower end of the positioning frame 2 is connected with the fixed underframe 1. Specifically, the upper end of the positioning frame 2 is longitudinally provided with a guide shaft sleeve 22, the telescopic rod 3 longitudinally penetrates through the guide shaft sleeve 22, meanwhile, one side of the telescopic rod 3 is provided with a driving mechanism 6 which is arranged on the positioning frame 2, and the telescopic rod 3 is driven to move up and down by starting the driving mechanism 6. Based on above-mentioned structure, telescopic link 3 drives the screw thread head 4 through upwards stretching or contracting downwards and reciprocates, and this action can realize the installation and the dismantlement of piston.

In this embodiment, the whole detaching device is fixed below the unit brake by the fixed chassis 1, the thread head 4 above the telescopic rod 3 is screwed with the thread hole in the bottom of the piston, so that the thread head 4 and the piston are fixed together, at this time, the telescopic rod 3 is retracted downwards by the driving mechanism 6, the piston is pulled out of the unit brake vertically under the pulling force of the telescopic rod 3, the unit brake does not need to be detached in the maintenance process, and meanwhile, the process that the piston is pulled out cannot be damaged due to uneven acceptance. By operating the above processes in reverse, the piston can be safely installed into the unit brake, which brings great convenience to the maintenance of the unit brake.

Specifically, the driving mechanism 6 includes an engaging wheel 61 disposed on the positioning frame 2 and a rocking handle 62 for controlling the rotation of the engaging wheel 61, as shown in fig. 4, the axle of the engaging wheel 61 is mounted on the positioning frame 2 through a fixed bushing 63, and the rocking handle 62 is fixedly connected with the axle. The engaging teeth 31 are provided on the side of the telescopic rod 3 contacting the engaging wheel 61, and the engaging wheel 61 drives the telescopic rod 3 to move up and down. Adopt above-mentioned pure mechanical structure's drive arrangement, can realize manually operation, this maintenance environment that accords with unit brake more (the train is longer, inconvenient use power supply line and accumulate equipment, and manually operation more accords with the user demand), simultaneously, adopt manual actuating mechanism, can control the weight of whole device, the staff of being convenient for carries.

In the above structure, the use of the screw head 4 requires manual operation, the screw head 4 is rotated to be screwed with the preset screw hole at the lower end of the piston, and the convex clamping part 51 is arranged at the periphery of the connecting sleeve 5 for rotating the screw head 4, so that the hand friction force is increased. After the piston is taken out of the brake, in order to conveniently remove the piston from the screw head 4, a positioning clamping piece 21 matched with the clamping part 51 is arranged at the upper part of the positioning frame 2, the connecting sleeve 5 is moved downwards, the positioning clamping piece 21 is clamped with the clamping part 51 on the connecting sleeve 5, and therefore the axial movement of the connecting sleeve 5 is limited. At this time, the piston can be held by hand, the piston on the screw head 4 can be detached, and the piston which is overhauled or is new can be arranged on the screw head 4.

In order to adjust the longitudinal angle of the screw thread head 4, the fixing chassis 1 comprises an adjusting frame 13, wherein the adjusting frame 13 comprises two parallel longitudinal rods 131 which are arranged in a bilateral symmetry mode and a transverse rod 132 which is transversely arranged between the two longitudinal rods 131, and sliding sleeves 133 are arranged at two ends of the transverse rod 132 and are installed on the longitudinal rods 131 through the sliding sleeves 133; a sliding sleeve 133 is sleeved on the transverse rod 132, two sides of the sliding sleeve 133 are provided with connecting shafts 135 vertical to the transverse rod 132, and the lower end of the positioning frame 2 is movably connected with the connecting shafts 135; to prevent the adjusted structure from moving, a locking member 134 is provided on each sliding sleeve 133, and specifically, the locking member is a threaded section provided through a side wall of the sliding sleeve 133, and the sliding sleeve 133 is locked by tightening the threaded section. When placing the device, will fix the chassis and roughly put below unit stopper earlier, after fixing fixed chassis, remove locating rack 2, this moment under sliding sleeve 133's effect, the locating rack can move along longitudinal rod 131 and transverse bar 132 on alignment jig 13, thereby can adjust, the position of screw head 4, make screw head 4 and telescopic link 3 can keep vertical state, and make screw head 4 accurately insert the screw of predetermineeing of piston bottom, thereby make the telescopic link, screw head and piston keep vertical movement.

In addition, the fixed underframe 1 also comprises a front clamping head 11 positioned at the front end of the adjusting frame 13 and a pedal handle 12 positioned at the rear end of the adjusting frame 13, wherein the front clamping head 11 is used for clamping the waist part of a rail, the front part of the fixed underframe 1 is fixed by the rail, the pedal handle 12 is used for stepping, and a worker fixes the rear part of the fixed underframe 1 by stepping on the pedal handle 12.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (6)

1. The utility model provides a dismounting device for diesel locomotive unit stopper piston, includes piston mounting, extensible member and fixed chassis, the piston mounting is used for together with the piston is fixed, and fixed chassis is used for fixed whole device, and the extensible member drives the piston mounting through stretching or contracting and reciprocates its characterized in that: the piston fixing piece is a section of longitudinally arranged thread head which is matched with an inner screw hole at the bottom of the piston; the telescopic piece comprises a telescopic rod which is longitudinally arranged and a driving mechanism which drives the telescopic rod to move up and down, the lower end of the threaded head is coaxially connected with the telescopic rod through a movable connecting piece, and the threaded head can rotate around the axis of the threaded head; the extensible member is installed on the locating rack, and the lower end of the locating rack is installed on the fixed bottom frame.

2. A disassembly device for a diesel locomotive unit brake piston as claimed in claim 1, wherein: the driving mechanism comprises an engaging wheel arranged on the positioning frame and a rocking handle for controlling the engaging wheel to rotate; the positioning frame is longitudinally provided with a guide shaft sleeve, the telescopic rod movably penetrates through the guide sleeve, one side of the telescopic rod, which is contacted with the meshing wheel, is provided with meshing teeth, and the meshing wheel drives the telescopic rod to move up and down.

3. A disassembly device for a diesel locomotive unit brake piston as claimed in claim 1, wherein: the movable connecting piece comprises a connecting sleeve fixedly arranged at the lower end of the threaded head, a connecting shaft sleeve is arranged at the lower part of the connecting sleeve, and the top end of the telescopic rod is connected with the connecting shaft sleeve.

4. A disassembly device for a diesel locomotive unit brake piston as claimed in claim 3, wherein: the periphery of the connecting sleeve is provided with a clamping part, the upper part of the positioning frame is provided with a positioning clamping piece matched with the clamping part, and the connecting sleeve is moved downwards, so that the positioning clamping piece is clamped with the clamping part on the connecting sleeve, and the axial movement of the connecting sleeve is limited.

5. A dismounting device for a diesel locomotive unit brake piston as claimed in any one of claims 1 to 4, characterized in that: the fixed underframe comprises an adjusting frame; the adjusting frame comprises two parallel longitudinal rods which are arranged in bilateral symmetry and a transverse rod which is transversely arranged between the two longitudinal rods, and sliding sleeves are arranged at two ends of the transverse rod and are arranged on the longitudinal rods through the sliding sleeves; a sliding sleeve is sleeved on the transverse rod, connecting shafts perpendicular to the transverse rod are arranged on two sides of the sliding sleeve, and the lower end of the positioning frame is movably connected with the connecting shafts; all set up the locking piece on the sliding sleeve.

6. A disassembly device for a diesel locomotive unit brake piston as claimed in claim 5, wherein: the fixed underframe also comprises a front clamping head positioned at the front end of the adjusting frame and a pedal handle positioned at the rear end of the adjusting frame, wherein the front clamping head is used for clamping the waist part of the rail.

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