CN110539274A

CN110539274A - Manual spring pressure equipment machine of TBU

Info

Publication number: CN110539274A
Application number: CN201910755200.0A
Authority: CN
Inventors: 周彬; 甘勇; 吴健; 张强
Original assignee: Chengdu CRRC Sifang Railway Vehicle Co Ltd
Current assignee: Chengdu CRRC Sifang Railway Vehicle Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2019-12-06

Abstract

The invention belongs to the technical field of rail transit equipment, and particularly relates to a TBU manual spring press-fitting machine. The problem of artifical unable spring pressure equipment in constituteing and the pushing cylinder group of leading nut targets in place among the prior art is solved, it includes base (1), fuselage (2) and rack (3), the shape of fuselage is the shape of falling L, the lower extreme and base (1) fixed connection of fuselage (2), the front end and the rack (3) swing joint of fuselage (2), rack (3) vertical setting is provided with pivot (4) on fuselage (2), the one end fixedly connected with gear of pivot (4), wheel and rack (3) join in marriage the meshing, and the other end of pivot (4) is connected with rocker (5), and rocker (5) are perpendicular with pivot (4). The invention has convenient operation, safety and labor saving, and is suitable for the spring installation of the TBU in the rail transit equipment.

Description

Manual spring pressure equipment machine of TBU

Technical Field

The invention belongs to the technical field of rail transit equipment, and particularly relates to a TBU manual spring press-fitting machine.

Background

A tread brake unit (brake unit or TBU for short) is an important part of a basic brake device of an urban railway vehicle, and the quality of the brake performance, the service life and the operation safety of the brake unit are directly influenced by the overhaul quality of the tread brake unit. In order to guarantee the quality of the overhaul, the overhaul is strictly carried out according to the overhaul technical requirements and quality standards. After the brake unit is overhauled, the quality of the brake unit is supervised and accepted by an inspection department, a check worker performs spot check according to the regulations, the test bench performs inspection according to XFD type tread brake unit inspection test specifications, and after the inspection is qualified, the inspection records, the inspection reports and the qualification certificates are filled, so that finished products can be put in storage and loaded for use.

In the prior art, the springs are generally installed manually during the TBU overhaul, but the spring of the key number 52 composed of the guide nut shown in fig. 5 and the spring of the key numbers 410 and 48 composed of the push cylinder shown in fig. 4 in the brake unit have too high elastic coefficients, so that manual press-fitting cannot be performed to corresponding positions, and the functions of the guide nut component and the push cylinder component in the TBU cannot be realized. And the manual press fitting has potential safety hazards, so that safety accidents are easily caused.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the TBU manual spring press-fitting machine which can be used for conveniently press-fitting the springs in the guide nut assembly and the push cylinder assembly by an operator, is time-saving and labor-saving and eliminates potential safety hazards.

The technical scheme adopted by the invention is as follows:

The utility model provides a manual spring pressure equipment machine of TBU, includes base, fuselage and rack, the shape of fuselage is for falling L shape, the lower extreme and the base fixed connection of fuselage, the front end and the rack swing joint of fuselage, the vertical setting of rack is provided with the pivot on the fuselage, the one end fixedly connected with gear of pivot, gear and rack toothing, the other end of pivot is connected with the rocker, and the rocker is perpendicular with the pivot.

after the technical scheme is adopted, the rocker is pulled to drive the rack to move downwards, the lower end of the rack compresses the spring in the guide nut assembly or the push cylinder assembly, so that the spring is pressed to a fixed position, the problem that the TBU spring pressing assembly cannot be completed by simply using manpower is solved, and time and labor are saved.

preferably, the lower end of the rack is provided with a conical inner hole of the pressure head.

After the technical scheme is adopted, the upper end of the pressed part is placed in the conical pressure head inner hole, the part can be prevented from moving in the pressing process, the spring is prevented from popping up to hurt people, the pressure head inner hole is arranged to be conical, and the pressing head can be suitable for pressing parts with different sizes.

Preferably, the rocker is movably connected with the rotating shaft, and two ends of the rocker are provided with limiting blocks.

After the technical scheme is adopted, the length and the direction of the force arm of the rocker can be adjusted, the rocker is convenient for an operator to use, and the two ends of the rocker are provided with the limiting blocks to prevent the rocker from sliding out of the rotating shaft.

Preferably, the cross section of the fuselage is L-shaped or T-shaped.

After the technical scheme is adopted, under the condition that the strength and the rigidity of the machine body are reduced a little, the used materials of the machine body are greatly reduced, the materials are saved, the weight is greatly reduced, and the movement of the device is convenient.

Preferably, a plurality of through holes are formed in the machine body.

After adopting this technical scheme, the material that the fuselage used further reduces, and weight further alleviates, the convenient removal.

Preferably, the four corners of the bottom of the base are provided with bulges with the same height.

After adopting this technical scheme, the base is put steadily more easily, avoids the base below to have solid particle and makes the device take place to rock.

Preferably, a plurality of positioning bolt holes are formed in the front end of the machine body and located right in front of the rack, and positioning bolts are arranged in the positioning bolt holes.

After the technical scheme is adopted, the spring in the part is compressed in place, the positioning bolt is screwed down, the positioning bolt is in close contact with the rack, the rack is prevented from moving upwards under the elastic action of the spring, an operator can conveniently install the spring fixing device on the part, and the spring is prevented from rebounding to hurt people.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. Through pulling the rocker, drive rack downstream, the rack lower extreme constitutes the guide nut or pushes away the spring compression in the section of thick bamboo is constituteed to with the spring pressure equipment to fixed position, solved and simply used the problem that the manpower can't accomplish the pressure equipment of TBU spring, labour saving and time saving.

2. Set up conical pressure head hole, can prevent that spare part from removing at the pressure equipment in-process, avoid the spring to pop out and hinder the people, the pressure head hole sets to conical moreover, can be applicable to the spare part pressure equipment of variation in size.

3. The rocker is movably connected with the rotating shaft, the two ends of the rocker are provided with limiting blocks, the force arm length and the direction of the rocker can be adjusted, the rocker is convenient for operators to use, and the two ends of the rocker are provided with limiting blocks to prevent the rocker from sliding out of the rotating shaft.

4. The cross section of the machine body is L-shaped or T-shaped, under the condition that the strength and the rigidity of the machine body are reduced a little, the used materials of the machine body are greatly reduced, the materials are saved, the weight is greatly reduced, and the movement of the device is convenient.

5. The machine body is provided with a plurality of through holes, so that the used materials of the machine body are further reduced, the weight is further reduced, and the movement is convenient.

6. the bottom four corners of the base are provided with the bulges with the same height, so that the base is more easily and stably placed, and the situation that solid particles exist below the base and the device shakes is avoided.

7. Set up positioning bolt, prevent rack upward movement under the spring action of spring, make things convenient for operating personnel to the spare part on installation spring fixing device, prevent that the spring from kick-backing and hindering the people.

Drawings

the invention will now be described, by way of example, with reference to the accompanying drawings, in which:

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

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

FIG. 3 is a schematic structural view of portion A of FIG. 1;

FIG. 4 is an exploded view of the pusher assembly;

Fig. 5 is an exploded view of the lead nut assembly.

The device comprises a base 1, a machine body 2, a rack 3, a rotating shaft 4, a rocker 5, a limiting block 6, a positioning bolt 7, a gear 8, a through hole 9 and a pressure head inner hole 10.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive. The terms of orientation of "upper", "lower", "front" and "rear" and the like in this specification are merely used for convenience in describing relative positions between technical features, and are not to be construed as limiting the specific arrangement or use of the embodiments.

The present invention will be described in detail with reference to fig. 1 and 2.

Example one

The utility model provides a manual spring pressure equipment machine of TBU, includes base 1, fuselage 2 and rack 3, the shape of fuselage is for falling L shape, the lower extreme and the 1 welded connection of base of fuselage 2, the front end and the 3 swing joint of rack of fuselage 2, 3 vertical settings of rack, rack 3 can be in the upper and lower activity of fuselage 2, are provided with the bearing on the fuselage 2, are provided with pivot 4 in the bearing, and pivot 4 passes fuselage 2, and the one end welded connection of pivot 4 has gear 8, gear 8 and the meshing of rack 3, gear 8 rotate and drive rack 3 up-and-down motion, and the other end of pivot 4 is connected with rocker 5, and rocker 5 passes pivot 4 and mutually perpendicular with pivot 4. Rotating the rocker 5 to enable the rotating shaft 4 to rotate, the rotating shaft 4 drives the gear 8 to rotate, the gear 8 drives the rack 4 to move downwards to compress parts located below the rack 3, and therefore springs in the parts are pressed to fixed positions, and manual pressing of TBU springs is achieved.

Example two

The present embodiment includes all the features of the first embodiment, and is different from the first embodiment in that:

The lower end of the rack is provided with a conical pressure head inner hole 10. The setting can be fixed with the top of the spare part of compressed like this, prevents that the compression in-process spring from popping out and hindering the people, and pressure head hole 10 sets up to the toper can be applicable to the spare part of various sizes.

the rocker 5 is connected with the rotating shaft in a sliding mode, the length of the force arm is convenient to adjust, and the two ends of the rocker 5 are provided with limiting blocks 6 to prevent the rocker 5 from sliding out of the rotating shaft 4.

The cross section of the machine body 2 is L-shaped or T-shaped. According to the mechanical principle, the bending strength and the shearing strength of the member are related to the section height of the member, the section is L-shaped or T-shaped, the section height is unchanged, the mechanical property of the member is weakened slightly, but the use amount of materials is greatly reduced, the cost is saved, the weight of the device is greatly reduced, and the device is convenient to move.

The back of the machine body 2 is provided with three circular through holes 9, so that the weight of the device is further reduced.

The four corners of the bottom of the base 1 are provided with bulges with the same height.

Two positioning bolt holes are formed in the front end of the machine body 2 and located right in front of the rack 3, and positioning bolts 7 are arranged in the positioning bolt holes. When the rack 3 presses the parts in place, the spring fixing device needs to be installed on the parts, at the moment, an operator needs to install the spring fixing device with one hand, and the rocker is pulled with one hand to prevent the spring from rebounding, so that potential safety hazards exist in the operation, and safety accidents are easily caused. After the positioning bolt 7 is arranged, when the spring is pressed to a fixed position, the fixing bolt 7 is screwed down, so that the fixing bolt 7 is in close contact with the rack, the rack 3 is prevented from moving upwards under the action of the spring, and at the moment, an operator can vacate hands to install the spring fixing device, and potential safety hazards are eliminated.

the base is 665mm long, and wide 242mm, fuselage height 808mm, and rack length is 680mm, and the rack stroke is 460mm, and the cross dimension of rack is 50mm, and the maximum diameter of pressure head hole is 12mm, and the horizontal distance of pressure head hole center to fuselage is 226 mm.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides a TBU manual spring pressure equipment machine which characterized in that: including base (1), fuselage (2) and rack (3), the shape of fuselage is the shape of falling L, the lower extreme and base (1) fixed connection of fuselage (2), the front end and rack (3) swing joint of fuselage (2), the vertical setting of rack (3) is provided with pivot (4) on fuselage (2), the one end fixedly connected with gear (8) of pivot (4), gear (8) and rack (3) join in marriage the meshing, and the other end of pivot (4) is connected with rocker (5), and rocker (5) are perpendicular with pivot (4).

2. The TBU manual spring press according to claim 1, wherein the lower end of the rack (3) is provided with a conical ram inner hole (10).

3. The TBU manual spring pressing machine according to claim 1, wherein the rocker (5) is movably connected with the rotating shaft, and two ends of the rocker (5) are provided with limiting blocks (6).

4. the TBU manual spring press according to claim 1, wherein the cross section of the body (2) is L-shaped or T-shaped.

5. The TBU manual spring press-fitting machine according to claim 1, wherein a plurality of through holes (9) are formed in the machine body (2).

6. The TBU manual spring press-fitting machine is characterized in that four corners of the bottom of the base (1) are provided with protrusions with the same height.

7. The TBU manual spring press-fitting machine is characterized in that a plurality of positioning bolt holes are formed in the front end of the machine body (2), the positioning bolt holes are located right in front of the rack (3), and positioning bolts (7) are arranged in the positioning bolt holes.