CN221247640U - Pressing structure for step sleeve of longitudinal frame body - Google Patents
Pressing structure for step sleeve of longitudinal frame body Download PDFInfo
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- CN221247640U CN221247640U CN202323235840.XU CN202323235840U CN221247640U CN 221247640 U CN221247640 U CN 221247640U CN 202323235840 U CN202323235840 U CN 202323235840U CN 221247640 U CN221247640 U CN 221247640U
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- frame body
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- sleeve
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 41
- 238000001125 extrusion Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a pressing structure of a step sleeve of a longitudinal frame body, which is used for solving the technical problems of difficult disassembly and low efficiency of the step sleeve on the longitudinal frame body in a brake clamp lever in the maintenance process of rail transit equipment. The step sleeve extrusion assembly comprises a mounting seat and a bidirectional ejection mechanism, the mounting seat is fixedly connected with the base, the bidirectional ejection mechanism is in sliding connection with the mounting seat, a fixing hole matched with the mounting seat is formed in the middle of the longitudinal frame body clamp assembly, the longitudinal frame body clamp assembly is clamped on the base, the longitudinal frame body clamp assembly is buckled with the mounting seat, the longitudinal frame body is arranged on the longitudinal frame body clamp assembly, two ends of the bidirectional ejection mechanism are opposite to step sleeves on the longitudinal frame body, and the step sleeve oil cylinder assembly is fixedly connected with the base and symmetrically arranged on two sides of the bidirectional ejection mechanism. The extrusion structure is convenient to detach and simple to operate, improves the maintenance efficiency of the rail transit equipment, and reduces the time and labor cost of maintenance work.
Description
Technical Field
The utility model relates to the technical field of maintenance of rail transit equipment, in particular to a step sleeve pressing structure of a longitudinal frame body.
Background
In the field of rail transit, a brake caliper unit is a component that converts air pressure into brake pad positive pressure using compressed air to achieve a braking function. The brake caliper unit is installed on the bogie and generally comprises four parts, namely a brake cylinder, a brake caliper lever, a brake pad support and a lever hanging seat. During maintenance and overhaul of the brake caliper, the brake caliper needs to be completely disassembled and the shaft sleeve needs to be replaced. As an important component in the brake clamp lever, the longitudinal frame body is provided with two outward step sleeves, as shown in figure 1, which is not beneficial to disassembly in a way of direct extrusion by a press. The traditional disassembly mode generally depends on manual operation, and comprises the steps of holding the longitudinal frame body by hand and using an ejection tool to operate on a press, but the mode has the problems of time and labor waste, low positioning accuracy, high scratch risk on the longitudinal frame body and the like. Therefore, a set of tooling fixture capable of automatically aligning and automatically ejecting is urgently needed to improve efficiency, reduce labor intensity of operators, ensure operation precision and reduce scratch risk on the longitudinal frame body.
Disclosure of utility model
The utility model discloses a pressing structure of a step sleeve of a longitudinal frame body, which is used for solving the technical problems of difficult disassembly and low efficiency of the step sleeve on the longitudinal frame body in a brake clamp lever.
In order to achieve the above object, the present utility model provides the following technical solutions:
The utility model provides a longitudinal frame step sleeve extrusion structure which is characterized in that the structure comprises a base, a step sleeve extrusion assembly, a longitudinal frame clamp assembly and 2 step sleeve oil cylinder assemblies;
The step sleeve extrusion assembly comprises a mounting seat and a bidirectional ejection mechanism, the mounting seat is fixedly connected with the base, the bidirectional ejection mechanism is in sliding connection with the mounting seat, fixing holes matched with the mounting seat are formed in the middle of the longitudinal frame clamp assembly, the longitudinal frame clamp assembly is clamped on the base, the longitudinal frame clamp assembly is buckled with the mounting seat, the longitudinal frame is installed on the longitudinal frame clamp assembly, two ends of the bidirectional ejection mechanism are opposite to step sleeves on the longitudinal frame, and the step sleeve cylinder assembly is fixedly connected with the base and symmetrically arranged on two sides of the bidirectional ejection mechanism.
Compared with the prior art, the longitudinal frame step sleeve extrusion structure provided by the utility model has the following technical effects compared with the traditional longitudinal frame step sleeve disassembly method:
The longitudinal frame body clamp assembly of the extrusion structure can be used for clamping and fixing the longitudinal frame body, the bidirectional ejection mechanism of the step sleeve extrusion assembly is positioned at the inner side of the longitudinal frame body, two ends of the ejection mechanism are opposite to the step sleeve on the longitudinal frame body, proper pressure is applied through the symmetrically arranged step sleeve oil cylinder assemblies, the step sleeve on the longitudinal frame body can be quickly dismounted in a college, and the maintenance efficiency is improved. The whole set of structure is reasonable in design, simple and clear to operate, does not need complex tools and professional technical skills, reduces the operation difficulty, reduces the risk of misoperation, and ensures the safety of operators.
Drawings
Other and further objects and advantages will become apparent from the following description. The drawings are intended to illustrate examples of the various forms of the utility model. The drawings are not to be construed as illustrating all the ways in which the utility model may be made and used. Variations and substitutions of the various components of the utility model are, of course, possible. The utility model resides as well in the sub-combinations and sub-systems of the elements described and in the methods of using them.
In the drawings:
FIG. 1 is a diagram of the positional relationship between a longitudinal frame body and a step cover of the present utility model;
FIG. 2 is a schematic diagram of a step-out structure of a longitudinal frame according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a step-jacket extrusion assembly according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a longitudinal frame clamp assembly according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a step set cylinder assembly according to an embodiment of the present utility model.
Reference numerals:
10-base, 20-step sleeve extrusion assembly, 21-mount pad, 215-extrusion bracket, 22-bi-directional ejection mechanism, 221-bi-directional step sleeve ejector rod, 2215-bi-directional ejector rod, 2216-moving plate, 222-guide shaft, 223-return spring, 30-longitudinal frame clamp assembly, 31-bottom plate, 32-side plate, 33-longitudinal frame middle positioning block, 34-longitudinal frame fixing device, 35-longitudinal frame splicing sleeve, 40-step sleeve oil cylinder assembly, 41-oil cylinder bracket, 42-hydraulic cylinder and 43-step sleeve ejection rod.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 2 to 5 in detail, the step sleeve pressing structure for a longitudinal frame body provided by the embodiment of the utility model includes a base 10, a step sleeve pressing assembly 20, a longitudinal frame body clamp assembly 30 and 2 sets of step sleeve cylinder assemblies 40;
The step cover extrusion assembly 20 comprises a mounting seat 21 and a bidirectional ejection mechanism 22, wherein the mounting seat 21 is fixedly connected with the base 10, the bidirectional ejection mechanism 22 is in sliding connection with the mounting seat 21, a fixing hole matched with the mounting seat 21 is formed in the middle of the longitudinal frame clamp assembly 30, the longitudinal frame clamp assembly 30 is clamped on the base 10, the longitudinal frame clamp assembly 30 is buckled with the mounting seat 21, the longitudinal frame is arranged on the longitudinal frame clamp assembly 30, two ends of the bidirectional ejection mechanism 22 are opposite to step covers on the longitudinal frame, and the step cover oil cylinder assembly 40 is fixedly connected with the base 10 and symmetrically arranged on two sides of the bidirectional ejection mechanism 22.
The specific implementation method comprises the following steps:
The step sleeve pressing structure of the longitudinal frame body is used for disassembling the step sleeve on the longitudinal frame body in the brake clamp lever. The structure of the longitudinal frame body is shown in fig. 1, and the longitudinal frame body to be disassembled is placed on the fixture assembly, and the step sleeve cylinder assembly 40 applies pressure to the step sleeve on the longitudinal frame body by the step sleeve extrusion assembly 20, so that the step sleeve extrusion assembly 20 extrudes the step sleeve on the longitudinal frame body onto the longitudinal frame body connecting sleeve 35.
In the specific implementation process, the longitudinal frame body to be processed is placed on the substrate of the longitudinal frame body clamp assembly 30, and is fixed through the longitudinal frame body middle positioning block 33 and the longitudinal frame body fixing devices 34 arranged at four corners of the substrate of the longitudinal frame body clamp assembly 30, so that the position of the longitudinal frame body is prevented from shifting in the operation process, the detached step sleeve is accepted by the longitudinal frame body connecting sleeve 35 after being pressed out, and in order to facilitate the placing and taking of the whole longitudinal frame body step sleeve pressing structure, a connecting assembly capable of being connected with a mechanical arm is further arranged on the longitudinal frame body clamp assembly 30 and used for fastening and disassembling the longitudinal frame body clamp assembly 30.
The longitudinal frame body clamp assembly of the extrusion structure can be used for clamping and fixing the longitudinal frame body, the bidirectional ejection mechanism of the step sleeve extrusion assembly is positioned at the inner side of the longitudinal frame body, two ends of the ejection mechanism are opposite to the step sleeve on the longitudinal frame body, and the step sleeve cylinder assembly is symmetrically arranged to apply proper pressure, so that the step sleeve on the longitudinal frame body can be quickly dismounted in a college. Above-mentioned extrusion mechanism has improved the efficiency and the yield of the axle sleeve of longitudinal frame body maintenance change, and work efficiency improves more than 60%, and the operation precision is high, and whole set structural design is reasonable, and easy operation is clear, need not complicated instrument and professional technical skill, has reduced the operation degree of difficulty, has reduced the risk of maloperation, has ensured operating personnel's safety.
As an embodiment, the bidirectional ejection mechanism 22 includes a bidirectional step sleeve ejector 221, 2 guide shafts 222, and 4 identical return springs 223;
The mounting seat 21 is towards the two sides of the step sleeve on the longitudinal frame body, 2 extrusion brackets 215 are arranged, the guide shafts 222 are arranged in parallel, two ends of the guide shafts are fixedly connected with the corresponding extrusion brackets 215 respectively, two sides of the two-way step sleeve ejector rod 221 are slidably connected with the 2 guide shafts 222, 2 return springs 223 are sleeved on each guide shaft 222, and the return springs 223 on the same guide shaft 222 are positioned on two sides of the two-way step sleeve ejector rod 221.
The 4 extrusion supports 215 are symmetrically arranged on two sides of the mounting seat 21, the guide shafts 222 are arranged in parallel and are arranged on the corresponding fixed blocks, the bidirectional step sleeve ejector rods 221 are in sliding connection with the guide shafts 222, the bidirectional step sleeve ejector rods can move left and right under the action of the 2 step sleeve oil cylinder assemblies 40, ejection operation of corresponding side step sleeves on the longitudinal frame body is achieved, the corresponding return springs 223 are matched, after the step sleeve ejection step sleeve oil cylinder assemblies 40 are reset, the bidirectional step sleeve ejector rods 221 can be reset under the most used condition of the return springs 223, and the longitudinal frame body clamp assembly 30 is convenient to assemble and disassemble.
As one embodiment, the bi-directional step sleeve ram 221 includes a bi-directional ram 2215 and a moving plate 2216;
The middle part of the bidirectional ejector rod 2215 is fixedly connected with the middle part of the movable plate 2216, the central line of the bidirectional ejector rod 2215 is vertical to the movable plate 2216, and two ends of the movable plate 2216 are in sliding connection with the guide shaft 222 through the arranged guide holes;
The moving plate 2216 comprises an upper plate and a lower plate, wherein the middle part and two ends of one side of the upper plate and the lower plate which are opposite are respectively provided with a semicircular fixing groove and a semicircular guide groove, and the upper plate and the lower plate are connected through bolts.
The arrangement of the moving plate 2216 facilitates the fixation of the bidirectional ejector rod 2215 and the sliding connection with the guide shaft 222, and the moving plate 2216 composed of an upper plate and a lower plate is more convenient when the bidirectional ejector rod 2215 and the guide shaft 222 are combined.
As an implementation manner, two ends of the bidirectional ejector rod 2215 are stepped, limit flanges are arranged at positions close to the two ends, the distance between the two ends of the bidirectional ejector rod 2215 and the limit flanges is larger than the thickness of the side wall of the longitudinal frame body, and the diameters of the two ends of the bidirectional ejector rod 2215 are smaller than or equal to the outer diameter of the step sleeve.
The bidirectional ejector rod 2215 with the step-shaped structure can be better matched with the shape of the step sleeve, the step sleeve can be better ejected, and the limit flange is arranged, so that the ejectable distance of the bidirectional ejector rod 2215 is limited, and the damage to the longitudinal frame body and the restoring spring 223 is reduced.
As one embodiment, the vertical frame fixture assembly 30 includes a bottom plate 31, side plates 32, 2 vertical frame intermediate positioning blocks 33, and 4 vertical frame fixing devices 34 for fixing the vertical frame;
The fixed orifices sets up in the middle part of bottom plate 31, the setting of longitudinal frame body fixing device 34 is in the four corners position of bottom plate 31 to set up in the bilateral symmetry of bottom plate 31, curb plate 32 sets up in the one end of bottom plate 31, the symmetry of longitudinal frame body intermediate positioning piece 33 sets up in the both sides of bottom plate 31, the longitudinal frame body passes through longitudinal frame body fixing device 34 and installs on longitudinal frame body anchor clamps subassembly 30, the longitudinal frame body intermediate positioning piece 33 is located the outside of longitudinal frame body, and offset with the longitudinal frame body, the top of longitudinal frame body intermediate positioning piece 33 is provided with the arc recess, the arc recess is coaxial with the step cover, the diameter of arc recess is greater than the external diameter of step cover. Further, a plurality of positioning holes are formed in the back surface of the bottom plate 31, and a plurality of positioning pins matched with the positioning holes are formed on the base 10.
The setting of fixed orifices on bottom plate 31, the mount pad 21 cooperation of subassembly 20 is pressed out to the step cover that can be better realizes the location to longitudinal frame body anchor clamps subassembly 30, and locating hole and the locating pin that the cooperation set up guarantee the fixed effect to longitudinal frame body anchor clamps subassembly 30. The positioning block 33 in the middle of the longitudinal frame body realizes the lateral positioning and guiding of the longitudinal frame body, and simultaneously plays a guiding role for the ejection of the step sleeve oil cylinder assembly 40, and the arrangement of the arc-shaped groove also plays a guiding role for the ejected step sleeve.
As one embodiment, the longitudinal frame clamp assembly 30 further includes 2 longitudinal frame connectors 35;
The vertical frame body joint 35 is fixedly connected with the bottom plate 31 and is positioned outside the vertical frame body middle positioning block 33.
The arrangement of the longitudinal frame body joint 35 realizes the storage of the ejection step sleeve.
As one embodiment, the longitudinal frame body step set cylinder assembly 40 includes a cylinder bracket 41, a hydraulic cylinder 42, and a step set ejector rod 43;
The oil cylinder is fixedly connected with the base 10 and symmetrically arranged at two sides of the step sleeve pressing assembly 20, the step sleeve ejector rod 43 is arranged at the output end of the hydraulic cylinder 42, and the step sleeve ejector rod 43 is opposite to the center of the step sleeve.
The hydraulic cylinder 42 provides power for the step set extrusion assembly 20 to effect ejection of the step set.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
Various changes and substitutions can be made to the above description, all of which are within the spirit and scope of the utility model. Therefore, the utility model should not be limited, except as by the appended claims and equivalents thereof.
Claims (7)
1. The step sleeve pressing structure of the longitudinal frame body is characterized by comprising a base, a step sleeve pressing assembly, a longitudinal frame body clamp assembly and 2 step sleeve oil cylinder assemblies;
The step sleeve extrusion assembly comprises a mounting seat and a bidirectional ejection mechanism, the mounting seat is fixedly connected with the base, the bidirectional ejection mechanism is in sliding connection with the mounting seat, fixing holes matched with the mounting seat are formed in the middle of the longitudinal frame clamp assembly, the longitudinal frame clamp assembly is clamped on the base, the longitudinal frame clamp assembly is buckled with the mounting seat, the longitudinal frame is installed on the longitudinal frame clamp assembly, two ends of the bidirectional ejection mechanism are opposite to step sleeves on the longitudinal frame, and the step sleeve cylinder assembly is fixedly connected with the base and symmetrically arranged on two sides of the bidirectional ejection mechanism.
2. The longitudinal frame step cover pressing structure according to claim 1, wherein the bidirectional ejection mechanism comprises a bidirectional step cover ejector rod, 2 guide shafts and 4 identical return springs;
The mounting seat is towards the two sides of the step sleeve on the longitudinal frame body, 2 extrusion supports are arranged in parallel with the guide shafts, two ends of the guide shafts are fixedly connected with the corresponding extrusion supports respectively, two sides of the push rod of the two-way step sleeve are slidably connected with 2 guide shafts, 2 return springs are sleeved on each guide shaft, and the same return spring on each guide shaft is located on two sides of the push rod of the two-way step sleeve.
3. The longitudinal frame body step sleeve press-out structure according to claim 2, wherein the bidirectional step sleeve ejector rod comprises a bidirectional ejector rod and a moving plate;
The middle part of the bidirectional ejector rod is fixedly connected with the middle part of the movable plate, the central line of the bidirectional ejector rod is perpendicular to the movable plate, and two ends of the movable plate are in sliding connection with the guide shaft through guide holes;
the movable plate comprises an upper plate and a lower plate, semicircular fixing grooves and guide grooves are formed in the middle and two ends of one side of the upper plate and the lower plate opposite to each other, and the upper plate is connected with the lower plate through bolts.
4. The structure of claim 3, wherein the two ends of the bidirectional ejector rod are stepped, a limit flange is arranged near the two ends, the distance between the two ends of the bidirectional ejector rod and the limit flange is greater than the thickness of the side wall of the longitudinal frame body, and the diameter of the two ends of the bidirectional ejector rod is smaller than or equal to the outer diameter of the step sleeve.
5. The longitudinal frame step cover press-out structure according to claim 1, wherein the longitudinal frame jig assembly comprises a bottom plate, a side plate, 2 longitudinal frame middle positioning blocks, and 4 longitudinal frame fixing devices for fixing the longitudinal frame;
The fixing holes are formed in the middle of the bottom plate, the fixing devices of the longitudinal frame bodies are arranged at four corners of the bottom plate and are symmetrically arranged at two sides of the bottom plate, the side plates are arranged at one end of the bottom plate, the middle locating blocks of the longitudinal frame bodies are symmetrically arranged at two sides of the bottom plate, the longitudinal frame bodies are installed on the clamp assemblies of the longitudinal frame bodies through the fixing devices of the longitudinal frame bodies, the middle locating blocks of the longitudinal frame bodies are located on the outer sides of the longitudinal frame bodies and are propped against the longitudinal frame bodies, arc-shaped grooves are formed in the tops of the middle locating blocks of the longitudinal frame bodies and are coaxial with the step sleeves, and the diameters of the arc-shaped grooves are larger than the outer diameters of the step sleeves.
6. The longitudinal frame step collar press-out structure of claim 5, wherein said longitudinal frame clamp assembly further comprises 2 longitudinal frame collars;
the longitudinal frame body connecting sleeve is fixedly connected with the bottom plate and is positioned outside the middle positioning block of the longitudinal frame body.
7. The longitudinal frame body step sleeve pressing structure according to claim 1, wherein the longitudinal frame body step sleeve oil cylinder assembly comprises an oil cylinder bracket, a hydraulic cylinder and a step sleeve ejector rod;
The oil cylinder is fixedly connected with the base, and is symmetrically arranged on two sides of the step sleeve extrusion assembly, the step sleeve ejector rod is arranged at the output end of the hydraulic cylinder, and the step sleeve ejector rod is opposite to the center of the step sleeve.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221247640U true CN221247640U (en) | 2024-07-02 |
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