CN212480107U - Air spring hole machining protection device - Google Patents
Air spring hole machining protection device Download PDFInfo
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- CN212480107U CN212480107U CN202020607563.8U CN202020607563U CN212480107U CN 212480107 U CN212480107 U CN 212480107U CN 202020607563 U CN202020607563 U CN 202020607563U CN 212480107 U CN212480107 U CN 212480107U
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- spring hole
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- sealing ring
- pressing sleeve
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Abstract
The utility model relates to an air spring spot facing work protector, including the body the both ends of body are high adjusting part and seal assembly installed respectively, seal assembly includes first sealing washer, compresses tightly cover and moving mechanism, first sealing washer with compress tightly the cover suit in the outside of body spacing portion has on the body, first sealing washer is installed spacing portion with compress tightly between the cover, it is connected with moving mechanism to compress tightly the cover, moving mechanism drives and compresses tightly the cover and removes and extrude first sealing washer to spacing portion direction and make first sealing washer is sealed with the laminating of air spring downthehole wall. The utility model has the advantages of simple integral structure, and convenient operation, can prevent effectively that iron fillings, the processing cutting liquid stream that produce from flowing into the additional air chamber of framework by the air spring hole in the framework course of working, have good protecting effect, and be favorable to improving machining efficiency, ensure card processingquality.
Description
Technical Field
The utility model relates to a protection frock, in particular to air spring spot facing work protector belongs to rail vehicle and makes technical field.
Background
An air spring of an urban rail vehicle bogie is generally connected with an additional air chamber so as to increase the volume of the air spring and improve the comfort of a vehicle. The air spring hole and the additional air chamber are communicated through a connecting hole vertical to the air spring hole, but when the air spring hole is machined, cutting fluid and generated scrap iron can enter the additional air chamber through the connecting hole, and if the cutting fluid, the scrap iron and other impurities exist in the additional air chamber, the performance of the air spring is affected, and driving accidents are caused.
The general solution is to use soft cloth to be plugged into the connecting holes of the air spring hole and the air chamber to play a role in protection, but the method has the following defects: the air-conditioning system cannot be protected tightly, and part of fine scrap iron can still enter an air chamber; the function of protecting the cutting fluid cannot be achieved; the operation difficulty is large, and the risk of plugging the soft cloth into the air chamber exists. In order to solve the problem, a processing protector in rail vehicle framework air spring hole is provided in the patent with the patent number of 201310588023.4, but this frock can only prevent the iron fillings that the framework course of working produced, the cutting fluid that the course of working produced still can flow into the framework intracavity, bring the cutting fluid and wash safety and the quality problem that are difficult to the clean up and lead to, and need consume a large amount of manpowers, the material resources come the cutting fluid of clearing up framework intracavity and leaving over, and simultaneously, this frock preparation technology is comparatively complicated, the reference column single piece processing degree of difficulty is great, need the welding to polish after the processing is accomplished, requirement on technical ability is higher, cause the frock preparation to rework easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a simple structure, and convenient operation can ensure that iron fillings and cutting fluid can not get into the air spring spot facing work protector in the additional air chamber in the course of working.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides an air spring spot facing work protector, includes the body the both ends of body are installed altitude mixture control subassembly and seal assembly respectively, seal assembly includes first sealing washer, compresses tightly cover and moving mechanism, first sealing washer with compress tightly the cover suit in the outside of body spacing portion has on the body, first sealing washer is installed spacing portion with compress tightly between the cover, it is connected with moving mechanism to compress tightly the cover, moving mechanism drives and compresses tightly the cover and remove and extrude first sealing washer to spacing portion direction and make first sealing washer is sealed with the laminating of air spring downthehole wall.
Further, the periphery of the end part of the body is provided with a part with a conical surface, the conical surface converges towards the direction of the pressing sleeve, and the conical surface forms the limiting part.
Further, the compressing sleeve is a straight cylinder or a conical body converging towards the direction of the first sealing ring.
Furthermore, the body is provided with a central through hole, the moving mechanism comprises a tension bolt, the tension bolt is installed in the central through hole of the body, the compression sleeve is connected with the tension bolt, and the tension bolt is rotated to drive the compression sleeve to move.
Furthermore, a pressing pin perpendicular to the tensioning bolt is installed on the tensioning bolt, the pressing pin is in threaded connection with the tensioning bolt, an open slot extending along the moving direction of the pressing sleeve is formed in the body, the pressing pin penetrates through the open slot and abuts against the end face, deviating from the first sealing ring, of the pressing sleeve or is directly and fixedly connected to the pressing sleeve, and the tensioning bolt is rotated to drive the pressing pin to move so as to push the pressing sleeve.
Furthermore, an annular boss extending towards the central axis direction is arranged in the central through hole of the body, the head of the tension bolt is clamped above the annular boss, the rod part of the tension bolt penetrates through the annular boss, and a second sealing ring is arranged between the rod part of the tension bolt and the annular boss.
Furthermore, a circle of third sealing ring is arranged between the head of the tensioning bolt and the annular boss.
Further, the height adjusting assembly consists of an adjusting bolt and an adjusting nut, the adjusting bolt is in threaded connection with one end of the central through hole of the body, and the adjusting nut is installed on the adjusting bolt.
Further, the first sealing ring is an expandable rubber ring.
Further, the compressing sleeve is made of a plastic material.
To sum up, the utility model discloses an air spring spot facing work protector, compare with prior art, have following advantage:
(1) the device protecting effect is good, can prevent that iron fillings, the processing cutting liquid stream that produce from flowing into the additional air chamber of framework by the air spring hole in the framework course of working, avoid safety, the quality problem that the cutting fluid clearance is incomplete to bring, improve machining efficiency, ensure card processingquality.
(2) The device overall structure is simple, and convenient operation, put into after the air spring hole expand first sealing washer can, not only reducible next grinding process is bloied and is cleared up 2 people of operation personnel, improves machining efficiency, can avoid former frock moreover because the misuse produces the mar to the framework.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a sectional structure view of the present invention.
As shown in fig. 1 and 2, the air spring hole 1, the body 2, the height adjusting assembly 3, the sealing assembly 4, the central through hole 5, the adjusting bolt 6, the adjusting nut 7, the first sealing ring 8, the pressing sleeve 9, the conical surface 10, the tensioning bolt 11, the pressing pin 12, the open slot 13, the annular boss 14, the second sealing ring 15 and the third sealing ring 16.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
as shown in fig. 1 and 2, the present embodiment provides an air spring hole machining protector integrally installed in an air spring hole 1, and the device includes a body 2, and a height adjusting assembly 3 and a sealing assembly 4 are respectively installed at both ends of the body 2. The other end of the height adjusting component 3 is abutted against the bottom of the air spring hole 1 and is used for adjusting the initial installation height of the device, and the sealing component 4 is used for sealing the air spring hole 1.
Specifically, have central through-hole 5 on body 2, height adjusting part 3 comprises adjusting bolt 6 and adjusting nut 7, has the internal thread in the one end of central through-hole 5 of body 2, and adjusting bolt 6's tip passes through threaded connection with central through-hole 5 of body 2, and adjusting screw 6's head supports in the bottom of air spring hole 1, and adjusting nut 7 installs on adjusting bolt 6, and rotatory adjusting bolt 6 can adjust adjusting bolt 6 and stretch out the length of body 2, and then adjusts the initial mounting height of body 2.
Seal assembly 4 includes first sealing washer 8, compresses tightly cover 9 and moving mechanism, and first sealing washer 8 and compress tightly the outside that the cover 9 suit was at body 2, and first sealing washer 8 is preferred to adopt expandable rubber circle, and it is made by plastic material to compress tightly cover 9, preferably adopts nylon products.
The body 2 is provided with a limiting part, the first sealing ring 8 is arranged between the limiting part and the pressing sleeve 9, in the embodiment, the periphery of the end part of the body 2 is preferably provided with a part with a conical surface 10, the conical surface 10 converges towards the pressing sleeve 9, the limiting part is formed by the conical surface 10, and the first sealing ring 8 is arranged between the conical surface 10 and the pressing sleeve 9. When the pressing sleeve 9 moves towards the direction of the conical surface 10, the first sealing ring 8 is pushed and extruded, so that the first sealing ring 8 moves along the conical surface 10 and expands to be tightly sealed and attached to the inner wall of the air spring hole 1 to realize sealing, the air spring hole 1 is blocked, and scrap iron and machining cutting fluid are prevented from flowing into an additional air chamber of the framework.
The pressing sleeve 9 is connected with a moving mechanism, and the moving mechanism drives the pressing sleeve 9 to move towards the conical surface 10 so as to extrude the first sealing ring 8. The pressing sleeve 9 may be a straight cylinder as shown in fig. 1 and 2, or may be a cone structure converging toward the first seal ring 8.
In this embodiment, the moving mechanism includes the tension bolt 11, the tension bolt 11 is installed in the central through hole 5 of the body 2, install the clamp pin 12 perpendicular to the tension bolt 11 on the tension bolt 11, clamp pin 12 and tension bolt 11 threaded connection, it has the open slot 13 that extends along the direction of movement of the clamp sleeve 9 to open on the body 2, clamp pin 12 passes open slot 13 and supports and lean on the terminal surface that deviates from the first sealing washer of clamp sleeve 9, open slot 13 realizes radial ascending restriction to clamp pin 12, when operating personnel utilizes the spanner to stretch into rotatory tension bolt 11 from the one end of body 2, clamp pin 12 can follow the linear motion of tension bolt 11 owing to the restriction of open slot 13, can promote clamp sleeve 9 to move when clamp pin 12 moves. The pressing pin 12 can also be directly fixedly connected with the pressing sleeve 9 after penetrating through the open slot 13, and can be fixedly connected at the end part or directly fixedly connected on the inner hole wall of the pressing sleeve 9.
The annular boss 14 that stretches out to the central axis direction is equipped with in the central through hole 5 of body 2, annular boss 14 reduces the diameter of central through hole 5, the head card of tie bolt 11 is installed in the top of annular boss 14, the pole portion of tie bolt 11 passes annular boss 14, install second sealing washer 15 between the pole portion of tie bolt 11 and annular boss 14, the preferred Y-shaped sealing washer that adopts of second sealing washer 15, effectively avoid cutting fluid, iron fillings etc. to get into in the additional air chamber through central through hole 5. In order to further improve the sealing between the tightening bolt 11 and the body 2, a ring of third sealing rings 16 is also mounted between the head of the tightening bolt 11 and the annular boss 14.
When the device is used, an operator firstly adjusts the initial length required by the device through the adjusting bolt 6 and the adjusting nut 7, the adjusting bolt 6 is laterally placed into the inner cavity of the air spring hole 1, the bottom of the adjusting bolt abuts against the bottom of the air spring hole 1, the tensioning bolt 11 is adjusted after the size meets the requirement, the tensioning bolt 11 is rotated to enable the pressing pin 12 to drive the pressing sleeve 9 to move upwards, and the first sealing ring 8 is extruded to expand. The first sealing ring 8 expands due to extrusion to generate radial deformation, so that the first sealing ring 8 is tightly attached to the inner wall of the air spring hole 1. The gap between the tensioning bolt 11 and the body 2 is sealed by means of a second sealing ring 15 and a third sealing ring 16.
The device overall structure is simple, and convenient operation, put into after the air spring hole 1 expand first sealing washer 8 can, can effectively prevent iron fillings, the processing cutting liquid stream that produce in the framework course of working from flowing into the additional air chamber of framework by the air spring hole after the installation, avoid safe, the quality problems that the cutting fluid clearance is unclean to bring, have good protecting effect, and be favorable to improving machining efficiency, ensure card processingquality. In addition, the device not only can reduce 2 people of next grinding process clearance operation personnel of blowing, can avoid former frock to produce the mar to the framework because the misuse moreover.
Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention, unless departing from the content of the technical solution of the present invention.
Claims (10)
1. The utility model provides an air spring spot facing work protector which characterized in that: the air spring hole sealing device comprises a body, wherein a height adjusting assembly and a sealing assembly are respectively installed at two ends of the body, the sealing assembly comprises a first sealing ring, a pressing sleeve and a moving mechanism, the first sealing ring and the pressing sleeve are sleeved outside the body, a limiting part is arranged on the body, the first sealing ring is installed between the limiting part and the pressing sleeve, the pressing sleeve is connected with the moving mechanism, and the moving mechanism drives the pressing sleeve to move towards the limiting part and extrude the first sealing ring to enable the first sealing ring to be attached and sealed with the inner wall of an air spring hole.
2. An air spring hole machining guard as claimed in claim 1 wherein: the outer periphery of the end part of the body is provided with a part of a conical surface, the conical surface converges towards the direction of the pressing sleeve, and the conical surface forms the limiting part.
3. An air spring hole machining guard as claimed in claim 2 wherein: the compressing sleeve is a straight cylinder body or a conical body converging towards the direction of the first sealing ring.
4. An air spring hole machining guard as claimed in claim 1 wherein: the body is provided with a central through hole, the moving mechanism comprises a tension bolt, the tension bolt is installed in the central through hole of the body, the compression sleeve is connected with the tension bolt, and the tension bolt is rotated to drive the compression sleeve to move.
5. An air spring hole machining guard as claimed in claim 4 wherein: the tensioning bolt is provided with a pressing pin perpendicular to the tensioning bolt, the pressing pin is in threaded connection with the tensioning bolt, an open slot extending along the moving direction of the pressing sleeve is formed in the body, the pressing pin penetrates through the open slot and abuts against the end face, deviating from the first sealing ring, of the pressing sleeve or is directly and fixedly connected to the pressing sleeve, and the tensioning bolt is rotated to drive the pressing pin to move so as to push the pressing sleeve.
6. An air spring hole machining guard as claimed in claim 4 wherein: the head of the tension bolt is clamped above the annular boss, the rod of the tension bolt penetrates through the annular boss, and a second sealing ring is arranged between the rod of the tension bolt and the annular boss.
7. An air spring hole machining guard as claimed in claim 6 wherein: and a circle of third sealing ring is arranged between the head of the tensioning bolt and the annular boss.
8. An air spring hole machining guard as claimed in claim 4 wherein: the height adjusting assembly is composed of an adjusting bolt and an adjusting nut, the adjusting bolt is in threaded connection with one end of the central through hole of the body, and the adjusting nut is installed on the adjusting bolt.
9. An air spring hole machining guard as claimed in claim 1 wherein: the first sealing ring is an expandable rubber ring.
10. An air spring hole machining guard as claimed in claim 1 wherein: the pressing sleeve is made of a plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607563.8U CN212480107U (en) | 2020-04-22 | 2020-04-22 | Air spring hole machining protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020607563.8U CN212480107U (en) | 2020-04-22 | 2020-04-22 | Air spring hole machining protection device |
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| Publication Number | Publication Date |
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| CN212480107U true CN212480107U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020607563.8U Active CN212480107U (en) | 2020-04-22 | 2020-04-22 | Air spring hole machining protection device |
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| CN (1) | CN212480107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401516A (en) * | 2022-10-14 | 2022-11-29 | 中车南京浦镇车辆有限公司 | Machining method and device for preventing scrap iron in swing bolster air chamber |
-
2020
- 2020-04-22 CN CN202020607563.8U patent/CN212480107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401516A (en) * | 2022-10-14 | 2022-11-29 | 中车南京浦镇车辆有限公司 | Machining method and device for preventing scrap iron in swing bolster air chamber |
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