CN219689800U - Fixed double-layer quenching die for synchronizer sliding tooth sleeve - Google Patents
Fixed double-layer quenching die for synchronizer sliding tooth sleeve Download PDFInfo
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- CN219689800U CN219689800U CN202320348301.8U CN202320348301U CN219689800U CN 219689800 U CN219689800 U CN 219689800U CN 202320348301 U CN202320348301 U CN 202320348301U CN 219689800 U CN219689800 U CN 219689800U
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- 238000010791 quenching Methods 0.000 title claims abstract description 82
- 230000000171 quenching effect Effects 0.000 title claims abstract description 81
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000002355 dual-layer Substances 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000005255 carburizing Methods 0.000 description 4
- 238000004513 sizing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a synchronizer gear sleeve type pressure quenching die, in particular to a fixed double-layer pressure quenching die for a synchronizer sliding gear sleeve, which is used for solving the problems of poor roundness and warping deformation of an end surface of the synchronizer sliding gear sleeve or low production efficiency, long production period and high cost of only one piece of pressure quenching die at a time in the prior art. The fixed double-layer quenching die for the synchronizer sliding tooth sleeve comprises an upper die, a mandrel and a lower die; the mandrel is axially provided with a support disc, a first annular disc, a second annular disc and a guide annular disc; the support disc is axially provided with a plurality of outer side oil channels and a plurality of first inner side oil channels; the support disc is provided with a plurality of outer oil outlet grooves along the radial direction; the outer oil outlet groove and the outer oil duct are used for supplying quenching oil for the sliding tooth sleeve to be processed for cooling; the supporting disc is matched with the lower die; the upper die is used for being connected with an external lifting mechanism and used for compacting the sliding tooth sleeve to be processed; the lower die is used for installing the mandrel.
Description
Technical Field
The utility model relates to a synchronizer gear sleeve type pressure quenching die, in particular to a fixed double-layer pressure quenching die for a synchronizer sliding gear sleeve.
Background
The sliding tooth sleeve of the synchronizer is a key part in the synchronizer assembly, the sliding tooth sleeve is an annular thin-wall part, an inner spline is arranged in the sliding tooth sleeve, a shifting fork groove is arranged on the outer part of the sliding tooth sleeve, the dimensional accuracy requirements of the two structures are very high, a carburizing and quenching heat treatment process is needed to obtain enough mechanical strength, if a direct carburizing and quenching process is adopted, the sliding tooth sleeve of the synchronizer can generate the problems of out-of-roundness, end face warping and the like, so that the dimensional accuracy of the sliding tooth sleeve of the synchronizer is ensured by adopting a carburizing and pressure quenching process in the industry. The pressure quenching is also called shape limiting quenching, is a heat treatment process for limiting deformation by using a die in part quenching, and the qualification rate of the synchronizer sliding tooth sleeve can reach more than 99% after the pressure quenching process is adopted. However, the pressure quenching process is generally finished by adopting an automatic pressure quenching machine tool, and hundreds of parts can be produced at one time unlike direct quenching, currently, the internal pressure quenching machine tool in the industry adopts double stations, only 2 synchronizer sliding tooth sleeves can be processed in each period, the problems of poor roundness of the synchronizer sliding tooth sleeves and warping deformation of the end surfaces are easy to occur, the production efficiency of the synchronizer sliding tooth sleeves is low, the production period is long, and the cost is high.
Chinese patent CN212504987U discloses a "press quenching die for internal gear sleeve type parts", which comprises a press head and a mandrel assembly coaxially arranged with the press head, and further comprises a press ring piece and a support piece, wherein the press ring piece is sleeved on the top end of the mandrel assembly, the support piece is sleeved on the bottom end of the mandrel assembly, the part to be processed is formed between the press ring piece and the support piece, and the press ring piece and the support piece act on the internal spline surface and the external tooth surface of the part together. Chinese patent CN201581110U discloses a "press quenching die with internal spline and thin wall structure", which is used for carburizing and limiting shape quenching of a part to be processed, wherein an annular oil groove is arranged on the sizing core disc along the outer circumferential wall, a plurality of radial oil holes are uniformly distributed in the annular oil groove, a plurality of axial oil holes intersecting with the radial oil holes are arranged on the sizing core disc along the axial direction, screw threads are arranged in the oil ports of the radial oil holes and the oil ports at the upper ends of the axial oil holes, the screw threads can be assembled and plugged through the screw threads, and cooling oil can directly reach the middle part and the upper part of a workpiece through an oil path which is positioned in the sizing core disc and consists of the radial oil holes, the axial oil holes and the screw plugs. However, in the technical scheme, when the press quenching die is used for press quenching, one piece is press quenched at a time, and the problems of low production efficiency, long production period and high cost exist.
Disclosure of Invention
The utility model aims to solve the problems of poor roundness and warping deformation of an end surface of a sliding tooth sleeve of a synchronizer or low production efficiency, long production period and high cost of only one piece at a time in the prior art, and provides a fixed double-layer quenching die for the sliding tooth sleeve of the synchronizer.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a fixed double-deck quenching mould for synchronous ware slip tooth cover, its special character lies in: comprises an upper die, a mandrel and a lower die;
the mandrel is sequentially and coaxially provided with a support disc, a first annular disc, a second annular disc and a guide annular disc from bottom to top along the axial direction;
a lower oil outlet ring cavity is formed between the upper end surface of the first annular disc and the lower end surface of the second annular disc;
an upper oil outlet ring cavity is formed between the upper end surface of the second ring disc and the lower end surface of the guide ring disc; the upper oil outlet ring cavity and the lower oil outlet ring cavity are used for supplying quenching oil to the middle part of the sliding tooth sleeve to be processed for cooling;
the support disc is axially provided with a plurality of outer side oil channels and a plurality of first inner side oil channels; the end part of the support disc, which is close to the first annular disc, is radially provided with a plurality of outer oil outlet grooves; the outer oil outlet grooves are in one-to-one correspondence with the outer oil channels, and are communicated with oil outlets of the outer oil channels, and the outer oil outlet grooves and the outer oil channels are used for cooling quenching oil supplied to the lower part of the sliding tooth sleeve to be processed;
the first annular disc is axially provided with a plurality of second inner side oil channels; the second inner oil channels are in one-to-one correspondence with the first inner oil channels;
the second annular disc is axially provided with a plurality of third inner side oil channels;
the lower die is used for installing the mandrel, and the supporting disc is connected in a positioning hole arranged on the lower die; the outer diameter of the guide ring disc is matched with the inner diameter of the upper die; the upper end of the upper die is used for being connected with an external lifting mechanism, and the lower end of the upper die is used for compacting a sliding tooth sleeve to be processed, which is sleeved on the mandrel.
Further, the supporting disc is of a cylindrical structure;
the first ring disc, the second ring disc and the guide ring disc are of circular ring structures, and the outer walls of the first ring disc, the second ring disc and the guide ring disc are in interference fit with the small diameter of the internal spline of the sliding gear sleeve to be processed.
Further, the vertical distance between the 1/2 height of the lower oil outlet ring cavity along the axial direction and the upper end surface of the supporting disc is 1/2 of the height of the sliding tooth sleeve to be processed;
the vertical distance between the upper layer oil outlet ring cavity and the upper end surface of the supporting disc along the axial direction 1/2 height is 3/2 of the height of the sliding tooth sleeve to be processed.
Further, a plurality of teeth are arranged on the outer wall of the supporting disc, and are meshed with a plurality of inner teeth arranged on the inner wall of the lower die positioning hole;
the side wall of the lower end of the upper die is provided with a plurality of through holes which are used for supplying quenching oil for the position of the sliding tooth sleeve to be processed, which is close to the end part of the lower end of the upper die, to cool.
Further, the end part of the guide ring disc, which is close to the upper die, is provided with a guide conical surface.
Further, in order to enable the sliding tooth sleeve to be processed to be cooled more uniformly, the third inner oil passage corresponds to the second inner oil passage one by one.
Further, cylindricity of the support disc, the first annular disc, the second annular disc and the guide annular disc is smaller than 0.04mm, and verticality of the support disc, the first annular disc, the second annular disc and the guide annular disc is smaller than 0.05mm;
further, the heights of the lower oil outlet annular cavity and the upper oil outlet annular cavity are 5-8mm.
The diameters of the outer oil passage, the first inner oil passage, the second inner oil passage and the third inner oil passage are all 5-6mm, and the number of the outer oil passage, the first inner oil passage, the second inner oil passage and the third inner oil passage is 24-48.
Further, the taper of the guide conical surface is 15-18 degrees, and the height is 15-18mm.
Further, the support disc, the first annular disc, the second annular disc and the guide annular disc are integrally arranged.
Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:
(1) The fixed double-layer quenching die for the synchronizer sliding tooth sleeve can control the roundness of the sliding tooth sleeve to be processed within 0.1mm by utilizing the limiting shapes of the outer walls of the support disc, the first ring disc, the second ring disc and the guide ring disc, and can control the end face runout of the sliding tooth sleeve to be processed within 0.03mm by pressing and quenching the end face limiting shapes of the upper die and the guide ring disc.
(2) The utility model is used in a fixed double-layer quenching die of a synchronizer sliding gear sleeve, a quenching oil circuit, namely a cooling oil circuit is designed among a supporting disc, a first annular disc, a second annular disc and a guide annular disc, the cooling oil circuit is divided into two parts, and comprises an outer oil circuit and an inner oil circuit, wherein the inner oil circuit comprises a first inner oil circuit, a second inner oil circuit and a third inner oil circuit, and an upper oil outlet ring cavity and a lower oil outlet ring cavity are also arranged, so that the sliding gear sleeve to be processed is uniformly cooled integrally, and uniform quenching hardness can be obtained.
(3) The fixed double-layer quenching die for the synchronizer sliding tooth sleeve is provided with the guide conical surface, so that the sliding tooth sleeve to be processed can be smoothly aligned and pressure quenching can be completed even if a certain amount of non-concentricity exists in the process of falling into a mandrel.
(4) The fixed double-layer quenching die for the synchronizer sliding tooth sleeve can be used for quenching two parts at one time, and the production efficiency is improved by 100%; in addition, the die disclosed by the utility model has high adaptability to an original press quenching machine tool, can be conveniently switched in a single-layer and double-layer press quenching mode, and has high flexibility. After the double-layer quenching die is adopted, the production period of the sliding tooth sleeve of the synchronizer is short, and the production cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the assembled structure of an embodiment of a stationary dual layer quenching die for a synchronizer sliding sleeve according to the present utility model;
FIG. 2 is an exploded view of an embodiment of a stationary dual layer quenching die for a synchronizer sleeve according to the present utility model;
FIG. 3 is a schematic view of the structure of a mandrel in a fixed dual-layer quenching mold embodiment for a synchronizer sliding sleeve according to the present utility model;
FIG. 4 is a cross-sectional view of a mandrel in a stationary dual layer quenching die embodiment for a synchronizer sleeve according to the utility model;
FIG. 5 is a top view of a mandrel in a stationary dual layer quenching die embodiment for a synchronizer sleeve according to the utility model;
FIG. 6 is a schematic view of the bottom structure of a mandrel in a fixed dual layer quenching die embodiment for synchronizer sliding gear sleeve according to the present utility model;
fig. 7 is a three-dimensional view of a sliding sleeve to be machined in an embodiment of a stationary dual layer quenching die for a synchronizer sliding sleeve according to the present utility model.
The reference numerals in the drawings are:
the sliding tooth sleeve to be processed comprises the following components of a 1-upper die, a 11-through hole, a 2-mandrel, a 21-supporting plate, a 211-outer oil passage, a 212-first inner oil passage, a 213-outer oil outlet groove, 214-teeth, a 22-first annular plate, a 221-second inner oil passage, a 23-second annular plate, a 231-third inner oil passage, a 24-guiding annular plate, a 241-guiding conical surface, a 3-lower die, a 4-lower oil outlet annular cavity, a 5-upper oil outlet annular cavity and a 6-sliding tooth sleeve to be processed.
Detailed Description
As shown in fig. 1 and 2, a fixed double-layer quenching die for a sliding tooth sleeve of a synchronizer comprises an upper die 1, a mandrel 2 and a lower die 3.
As shown in fig. 3 and 4, the mandrel 2 is coaxially provided with a support disc 21, a first annular disc 22, a second annular disc 23 and a guide annular disc 24 in sequence from bottom to top along the axial direction; a lower oil outlet ring cavity 4 is formed between the upper end surface of the first ring disc 22 and the lower end surface of the second ring disc 23; an upper oil outlet ring cavity 5 is formed between the upper end surface of the second ring disc 23 and the lower end surface of the guide ring disc 24; the upper oil outlet ring cavity 5 and the lower oil outlet ring cavity 4 are used for supplying quenching oil to the middle part of the sliding tooth sleeve 6 to be processed for cooling.
As shown in fig. 5 and 6, the support plate 21 is provided with a plurality of outer side oil passages 211 and a plurality of first inner side oil passages 212 in the axial direction; the end of the support disc 21, which is close to the first annular disc 22, is radially provided with a plurality of outer oil outlet grooves 213; the outer oil outlet grooves 213 are in one-to-one correspondence with the outer oil passages 211, and the outer oil outlet grooves 213 are communicated with the oil outlets of the outer oil passages 211; the outer oil outlet groove 213 and the outer oil passage 211 are both used for supplying quenching oil to the lower part of the sliding tooth sleeve 6 to be processed for cooling; the first annular disc 22 is provided with a plurality of second inner oil passages 221 in the axial direction; the second inner oil passage 221 corresponds one-to-one with the first inner oil passage 212; the second annular disc 23 is provided with a plurality of third inner oil passages 231 in the axial direction; the third inner oil passage 231 corresponds one-to-one with the second inner oil passage 221.
As shown in fig. 1 and 7, the support plate 21 is engaged with the lower die 3; the outer diameter of the guide ring disc 24 is matched with the inner diameter of the upper die 1; the upper end of the upper die 1 is used for being connected with an external lifting mechanism, and the lower end of the upper die 1 is used for compacting a sliding toothed sleeve 6 to be processed sleeved on the mandrel 2; the mandrel 2 is used for positioning a sliding tooth sleeve 6 to be processed; the lower die 3 is used for mounting the mandrel 2.
In this embodiment, the support plate 21 has a cylindrical structure; the first ring disc 22, the second ring disc 23 and the guide ring disc 24 are all of circular ring structures, and the outer walls of the first ring disc 22, the second ring disc 23 and the guide ring disc 24 are in interference fit with the minor diameters of the internal splines of the sliding gear sleeve 6 to be processed.
Preferably, the vertical distance between the 1/2 height of the lower oil outlet ring cavity 4 along the axial direction and the upper end surface of the supporting disc 21 is 1/2 of the height of the sliding tooth sleeve 6 to be processed; the vertical distance between the 1/2 height of the upper oil outlet ring cavity 5 along the axial direction and the upper end surface of the supporting disc 21 is 3/2 of the height of the sliding tooth sleeve 6 to be processed. The outer wall of the supporting disk 21 is provided with a plurality of teeth 214, and the plurality of teeth 214 are meshed with a plurality of teeth arranged in the positioning hole of the lower die 3; more preferably, the side wall of the lower end of the upper die 1 is provided with a plurality of through holes 11, and the plurality of through holes 11 are used for supplying quenching oil to the position of the sliding gear sleeve 6 to be processed near the lower end of the upper die 1 for cooling. The end of the guide ring disc 24, which is close to the upper die 1, is provided with a guide conical surface 241. The diameters of the second inner oil passage 221 and the third inner oil passage 231 were 5mm, and the number thereof was 30.
The support plate 21, the first ring plate 22, the second ring plate 23 and the guide ring plate 24 of the present utility model may be integrally formed. The guiding conical surface 241 is arranged on the uppermost layer of the mandrel 2, after the sliding tooth sleeve 6 to be processed is heated to be completely austenitized, the sliding tooth sleeve 6 is grasped by an external manipulator, then the sliding tooth sleeve is vertically and downwards placed into the mandrel 2 from the upper side, the guiding conical surface 241 on the guiding ring disc 24 has the function of ensuring that the sliding tooth sleeve 6 to be processed still smoothly falls into the mandrel 2 when the sliding tooth sleeve 6 to be processed is not concentric with the mandrel 2, the taper of the guiding conical surface 241 is 16 degrees, and the height of the guiding conical surface 241 is 16mm. The main body of the mandrel 2 is of a cylindrical structure, is in interference fit with the small diameter of the internal spline of the sliding tooth sleeve 6 to be processed, and is used for limiting the shape of the sliding tooth sleeve 6 to be processed in the press quenching process; the form and position tolerance of the outer side walls of the first ring disc 22 and the second ring disc 23 is required to be less than 0.04mm in overall cylindricity and less than 0.05mm in verticality.
The cooling oil path of the mandrel 2 is divided into two parts, including an inner oil path and an outer oil path; in the quenching process, quenching oil flows into the outer oil channel 211 and the first inner oil channel 212 on the supporting plate 21 from bottom to top through an external oil pump, the diameters of the oil inlets of the outer oil channel 211 and the first inner oil channel 212 are round holes of 5mm, the quenching oil flows into the oil inlets of the first inner oil channel 212 and is uniformly distributed along the axial direction of the supporting plate 21, the number of the quenching oil is 30, the quenching oil flows into the oil inlets of the first inner oil channel 212 and is upwards along the round holes of the first inner oil channel 212, the upper oil outlet ring cavity 5 and the lower oil outlet ring cavity 4 in the circumferential direction of the cylindrical surface of the mandrel 2 are sprayed out of the oil grooves of the upper oil outlet ring cavity 5 and the lower oil outlet ring cavity 4, the heights of the upper oil outlet ring cavity 5 and the lower oil outlet ring cavity 4 are 7mm, the quenching oil is respectively sprayed into the height centers of the internal splines of the sliding tooth sleeve 6 to be processed, quenching is completed inside the sliding tooth sleeve 6 to be processed, the quenching oil flowing into the oil inlets of the outer oil channels 211 is sprayed out of the outer oil outlet groove 213, the outer side wall, the upper end surface and the lower end surface of the sliding tooth sleeve 6 to be quenched uniformly, and uniform hardness is finally achieved.
The upper end of the upper die 1 is used for being connected with an external lifting mechanism, the lower end face of the upper die 1 and the upper end face of the first annular disc 22 respectively act on the upper end face and the lower end face of the sliding gear sleeve 6 to be processed, so that the end face warping of the sliding gear sleeve 6 to be processed is limited, a plurality of teeth 214 arranged on the inner wall of the lower die 3 and the outer wall of the supporting disc 21 are in the shape of mutually meshed teeth, and the supporting disc 21, the first annular disc 22, the second annular disc 23 and the guiding annular disc 24 are driven by an external oil cylinder to finish lifting actions in the lower die 3, so that press quenching and demoulding are finished.
The assembly process of the above embodiment is as follows:
1) Placing the lower die 3 into a circular base of an external quenching press to ensure that the upper end surface of the lower die 3 is flush with the surface of the external quenching press;
2) The mandrel 2 is put into the lower die 3 and is fixed with an external oil cylinder connecting rod by four screws, the mandrel 2 can be lifted in the lower die 3 along with the external oil cylinder connecting rod, and the mandrel 2 is lower than the upper end surface of the lower die 3 when being lowered to the bottommost part;
3) The upper die 1 is fixedly connected with a lifting mechanism above an external quenching press machine, and the upper die 1 in the press quenching can be lowered to the position of the mandrel 2 and pressed on the end face of the sliding tooth sleeve 6 to be processed.
The utility model can use the mandrel 2 to press-quench two sliding tooth sleeves 6 to be processed once, so that the quenching hardness of the upper layer and the lower layer of the sliding tooth sleeve 6 to be processed is uniform, and the production efficiency is improved by 100%.
Claims (10)
1. A fixed double-layer quenching die for a synchronizer sliding tooth sleeve comprises an upper die (1), a mandrel (2) and a lower die (3); the method is characterized in that:
the mandrel (2) is coaxially provided with a supporting disc (21), a first annular disc (22), a second annular disc (23) and a guide annular disc (24) in sequence from bottom to top along the axial direction;
a lower oil outlet ring cavity (4) is formed between the upper end surface of the first annular disc (22) and the lower end surface of the second annular disc (23);
an upper oil outlet ring cavity (5) is formed between the upper end surface of the second ring disc (23) and the lower end surface of the guide ring disc (24); the upper oil outlet ring cavity (5) and the lower oil outlet ring cavity (4) are used for supplying quenching oil to the middle part of the sliding tooth sleeve (6) to be processed for cooling;
the support disc (21) is axially provided with a plurality of outer side oil channels (211) and a plurality of first inner side oil channels (212); the end part of the support disc (21) close to the first annular disc (22) is provided with a plurality of outer oil outlet grooves (213) along the radial direction; the outer oil outlet grooves (213) are in one-to-one correspondence with the outer oil channels (211), and the outer oil outlet grooves (213) are communicated with oil outlets of the outer oil channels (211); the outer oil outlet groove (213) and the outer oil duct (211) are used for supplying quenching oil to the lower part of the sliding tooth sleeve (6) to be processed for cooling;
the first annular disc (22) is provided with a plurality of second inner side oil channels (221) along the axial direction; the second inner oil channels (221) are in one-to-one correspondence with the first inner oil channels (212);
the second annular disc (23) is axially provided with a plurality of third inner oil passages (231);
the lower die (3) is used for installing the mandrel (2), and the supporting disc (21) is connected in a positioning hole arranged on the lower die (3); the outer diameter of the guide ring disc (24) is matched with the inner diameter of the upper die (1); the upper end of the upper die (1) is used for being connected with an external lifting mechanism, and the lower end of the upper die (1) is used for compacting a sliding toothed sleeve (6) to be processed, which is sleeved on the mandrel (2).
2. A stationary dual-layer quenching die for synchronizer sliding gear sleeve according to claim 1, wherein:
the supporting disc (21) is of a cylindrical structure;
the first annular disc (22), the second annular disc (23) and the guide annular disc (24) are of circular ring structures, and the outer walls of the first annular disc (22), the second annular disc (23) and the guide annular disc (24) are in interference fit with the small diameter of the internal spline of the sliding gear sleeve (6) to be processed.
3. A stationary dual-layer quenching die for synchronizer sliding gear sleeve according to claim 2, wherein:
the vertical distance between the 1/2 height of the lower oil outlet ring cavity (4) along the axial direction and the upper end surface of the supporting disc (21) is 1/2 of the height of the sliding tooth sleeve (6) to be processed;
the vertical distance between the upper oil outlet ring cavity (5) and the upper end surface of the supporting disc (21) along the axial direction at 1/2 height is 3/2 of the height of the sliding tooth sleeve (6) to be processed.
4. A stationary dual-layer quenching die for synchronizer sliding gear sleeve according to claim 3, wherein:
the outer wall of the supporting disc (21) is provided with a plurality of teeth (214), and the teeth (214) are meshed with the teeth arranged on the inner wall of the positioning hole of the lower die (3);
the side wall of the lower end of the upper die (1) is provided with a plurality of through holes (11), and the through holes (11) are used for supplying quenching oil to the position, close to the end part of the lower end of the upper die (1), of the sliding tooth sleeve (6) to be processed for cooling.
5. The stationary dual-layer quenching die for a synchronizer sliding sleeve according to claim 4, wherein:
the end part of the guide ring disc (24) close to the upper die (1) is provided with a guide conical surface (241).
6. The stationary dual-layer quenching die for a synchronizer sliding sleeve according to claim 5, wherein:
the third inner oil passage (231) corresponds to the second inner oil passage (221) one by one.
7. The stationary dual-layer quenching die for a synchronizer sliding sleeve according to claim 6, wherein:
the cylindricity of the supporting disc (21), the cylindricity of the first annular disc (22), the cylindricity of the second annular disc (23) and the cylindricity of the guiding annular disc (24) are all smaller than 0.04mm, and the cylindricity of the supporting disc is all smaller than 0.05mm;
the heights of the lower oil outlet annular cavity (4) and the upper oil outlet annular cavity (5) are 5-8mm.
8. A stationary dual-layer quenching die for a synchronizer sliding tooth sleeve according to any one of claims 5-7, wherein:
the diameters of the outer side oil duct (211), the first inner side oil duct (212), the second inner side oil duct (221) and the third inner side oil duct (231) are all 5-6mm, and the number of the outer side oil duct (211), the first inner side oil duct (212), the second inner side oil duct (221) and the third inner side oil duct (231) is 24-48.
9. The stationary dual-layer quenching die for a synchronizer sliding tooth sleeve according to claim 8, wherein:
the taper of the guide conical surface (241) is 15-18 degrees, and the height is 15-18mm.
10. A stationary dual-layer quenching die for synchronizer sliding gear sleeve according to claim 9, wherein:
the support disc (21), the first annular disc (22), the second annular disc (23) and the guide annular disc (24) are integrally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348301.8U CN219689800U (en) | 2023-02-28 | 2023-02-28 | Fixed double-layer quenching die for synchronizer sliding tooth sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348301.8U CN219689800U (en) | 2023-02-28 | 2023-02-28 | Fixed double-layer quenching die for synchronizer sliding tooth sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219689800U true CN219689800U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320348301.8U Active CN219689800U (en) | 2023-02-28 | 2023-02-28 | Fixed double-layer quenching die for synchronizer sliding tooth sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219689800U (en) |
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2023
- 2023-02-28 CN CN202320348301.8U patent/CN219689800U/en active Active
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