CN215050535U - Switching device for testing furnace temperature uniformity of vacuum heat treatment furnace - Google Patents
Switching device for testing furnace temperature uniformity of vacuum heat treatment furnace Download PDFInfo
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- CN215050535U CN215050535U CN202120899956.5U CN202120899956U CN215050535U CN 215050535 U CN215050535 U CN 215050535U CN 202120899956 U CN202120899956 U CN 202120899956U CN 215050535 U CN215050535 U CN 215050535U
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Abstract
The utility model discloses a switching device for testing the temperature uniformity of a vacuum heat treatment furnace, which comprises a wiring cover plate and a lead wire barrel which are arranged at the left end and the right end of a lead wire switching seat; the wire connecting cover plate is uniformly provided with a plurality of inner holes and outer holes, each inner hole is fixedly provided with a lead joint with a hollow structure, the other end of each lead joint is circumferentially provided with a locking thread, one end of each lead joint with the locking thread is provided with a step hole, a sealing rubber ring is placed on each step hole, each lead joint is detachably connected with a lead fixing nut through the locking thread, and an elastic gasket is embedded in a groove of each lead fixing nut; the lead adapter is a conical hollow structure, and the large-end of the conical lead adapter is connected with the wiring cover plate through a first flanging. The utility model discloses switching device structural design is reasonable, has realized the effective switching of temperature measurement frame in thermocouple sensor and the vacuum heat treatment furnace, and the accuracy of test data is guaranteed to the interior leakproofness when improving furnace temperature homogeneity test.
Description
Technical Field
The utility model belongs to the technical field of vacuum heat treatment furnace temperature measuring equipment, concretely relates to test switching device of vacuum heat treatment furnace temperature homogeneity.
Background
With the rapid development of aerospace planes and the integration with international technology, the aerospace industry has increasingly strict requirements on the quality of products, a vacuum heat treatment furnace is important equipment for producing aerospace products, and the furnace temperature uniformity is one of the most important indexes of the equipment for the vacuum heat treatment furnace, so that the regular verification of the furnace temperature uniformity is a necessary basis for ensuring the qualified heat treatment of parts or raw materials.
In the prior art, when the temperature uniformity of a test furnace is tested, a punched rubber pad is placed at the position of a test hole, a test end of a thermocouple sensor passes through the hole of the rubber pad and then passes through the position of the test hole of a heat treatment furnace (the test hole is a single hole), the test hole is connected into a furnace temperature test frame, and the rubber pad and the thermocouple sensor need to be bonded by using a glue substance to ensure sealing. The drawback that prior art exists is that sensor switching rubber pad is disposable, and when thermocouple sensor directly passes through the haplopore, is difficult for the switching, and the easy rupture decreases, has reduced thermocouple sensor's life, has increased the cost for the enterprise.
In view of the above, the present invention provides an adapting device for testing temperature uniformity of a vacuum heat treatment furnace, so as to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a switching device of test vacuum heat treatment furnace temperature homogeneity, this switching device has realized effective switching of temperature measurement frame in thermocouple sensor and the vacuum heat treatment furnace chamber, and the interior leakproofness when improving furnace temperature homogeneity test guarantees the accuracy of test data.
The utility model aims at solving through the following technical scheme:
the switching device for testing the furnace temperature uniformity of the vacuum heat treatment furnace is characterized by comprising a wiring cover plate, a lead switching seat and a lead barrel, wherein the wiring cover plate and the lead barrel are respectively arranged at two ends of the lead switching seat;
the lead wire fixing nut comprises a lead wire cover plate, a lead wire connector, a first sealing rubber ring, a lead wire fixing nut, a lead wire hole, a groove and an elastic gasket, wherein the lead wire cover plate is uniformly provided with a plurality of inner holes and outer holes, each inner hole is fixedly provided with a hollow lead wire connector, the other end of each lead wire connector is provided with a locking thread in the circumferential direction, one end of each lead wire connector with the locking thread is provided with a step hole, the step surface of each step hole is provided with the first sealing rubber ring, each lead wire connector is detachably connected with the lead wire fixing nut through the locking thread, the top end of the inner thread hole of the lead wire fixing nut is provided with the groove, and the groove is embedded with the elastic gasket;
the lead adapter is of a conical hollow structure, the end part of the large end of the conical lead adapter is provided with a first flanging, the first flanging is provided with connecting holes which are in one-to-one correspondence with the outer holes, and the wiring cover plate and the lead adapter are locked by nuts after the lead adapter sequentially penetrates through the outer holes and the connecting holes through bolts;
one end of the lead cylinder is connected with the lead adapter, and the other end of the lead cylinder is provided with a second flanging which is detachably connected with the vacuum heat treatment furnace.
Furthermore, an annular groove is formed in one side, connected with the lead adapter, of the wiring cover plate, the annular groove is located at the joint of the wiring cover plate and the first flanging, and a second sealing rubber ring is laid in the annular groove.
Furthermore, the first sealing rubber ring and the second sealing rubber ring are both O-shaped rubber sealing rings.
Further, the number of the inner holes is 9, and the central angles of the two adjacent inner holes are the same.
Furthermore, the inner hole and the lead connector are obliquely arranged relative to the plane of the wiring cover plate, and the inclination angles of the inner hole and the lead connector are the same as the taper of the lead adapter.
Further, the taper range of the lead adapter is 10-30 degrees.
Furthermore, the lead adapter and the lead barrel are detachably connected through thread sealing glue or are fixed in a sealing mode through welding.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a test vacuum heat treatment furnace temperature homogeneity's switching device, this switching device is through setting up lead connector and lead wire fixation nut on the wiring apron, and set up O type rubber seal and elastic gasket in lead connector and lead wire fixation nut respectively, when thermocouple sensor passes lead wire fixation nut, lead wire connector in proper order and passes through the hole of wiring apron, screw lead wire fixation nut thereupon, under the extrusion of lead wire fixation nut, elastic gasket takes place deformation with O type rubber seal, only wrap up thermocouple sensor, avoid thermocouple sensor to produce the gap through lead wire connector; on the other hand, in order to ensure the sealing performance between the wiring cover plate and the lead adapter, an annular groove is formed at the joint of the wiring cover plate and the lead adapter, and an O-shaped rubber sealing ring is also paved in the annular groove.
2. The utility model relates to a test vacuum heat treatment furnace temperature homogeneity's switching device, the lead wire adapter base is the toper structure among this switching device, and hole and lead connector set up for the slope, has guaranteed that thermocouple sensor can be smooth-going transition to a lead wire section of thick bamboo and finally get into furnace from the wiring apron in, avoids excessively buckling thermocouple sensor, damages its life.
3. The utility model relates to a test vacuum heat treatment furnace temperature homogeneity's switching device, this switching device reasonable in design, the cost of manufacture is low, maneuverability is strong, and the rate of reuse is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic perspective view of the adapter of the present invention;
FIG. 2 is an exploded view of a portion of the adapter of the present invention;
FIG. 3 is a front view of the adapter of the present invention;
fig. 4 is a top view of the adapter device of the present invention;
FIG. 5 is a cross-sectional view of the adapter device A-A of the present invention;
fig. 6 is a connection diagram of the lead wire connector and the lead wire fixing nut in the switching device of the present invention.
Wherein: 1 is a wiring cover plate; 2 is a lead adapter; 3 is a lead cylinder; 4 is a lead connector; 5 is a first sealing rubber ring; 6 is a lead fixing nut; 7 is an elastic gasket; 8 is a second sealing rubber ring; 11 is an inner hole; 12 is an outer hole; 13 is a ring groove; 21 is a first flanging; 31 is a second flange; 41 is a locking thread; 42 is a step hole; 61 is a groove; 211 is a connection hole.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the following claims.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments.
Referring to fig. 1-6, the utility model relates to a test vacuum heat treatment furnace temperature homogeneity's switching device, including wiring apron 1, lead wire adapter 2 and lead wire section of thick bamboo 3, both ends about lead wire adapter 2 are installed respectively to wiring apron 1 and lead wire section of thick bamboo 3.
Wherein, the wiring cover plate 1 is evenly provided with a plurality of inner holes 11 and outer holes 12, preferably, the number of the inner holes 11 is generally 9, the central angles of two adjacent inner holes 11 are the same, each inner hole 11 is fixedly provided with a hollow lead joint 4, preferably, the lead joint 4 is welded at the end part of the inner hole 11 by adopting a seamless welding technology, the other end of the lead joint 4 is provided with a locking thread 41 in the circumferential direction, one end of the lead joint 4 with the locking thread 41 is provided with a step hole 42, a first sealing rubber ring 5 is arranged on the step surface of the step hole 42, the lead joint 4 is detachably connected with a lead fixing nut 6 through the locking thread 41, the lead fixing nut 6 is composed of an upper part and a lower part, the lower part is provided with an internal thread, the internal thread is matched with the locking thread 41, the upper part is provided with a hollow hexagon nut structure, the assembly and disassembly of a matching tool are convenient, the top end of the internal thread hole of the lead fixing nut 6 is provided with a groove 61, the groove 61 is embedded with an elastic gasket 7. Through the setting, after thermocouple sensor passed lead wire fixation nut 6 in proper order, lead wire connector 4 and kept away suitable use length behind the hole 11 through the wiring apron, screw lead wire fixation nut 6 through the hexagonal spanner immediately, at the in-process that lead wire fixation nut 6 screwed, elastic gasket 7 was close to gradually and extrudees first sealed rubber ring 5 along with lead wire fixation nut 6, through axial continuous extrusion, elastic gasket 7 and first sealed rubber ring 5 produce radial deformation, until tight parcel live thermocouple sensor, reach sealed effect.
And simultaneously, the utility model discloses an in making thermocouple sensor can be smooth-going get into the vacuum furnace through switching device, set up lead wire adapter 2 into toper hollow structure, the main aspects tip of toper lead wire adapter 2 sets up first turn-ups 21, set up on the first turn-ups 21 with the connecting hole 211 of outer hole 12 one-to-one, pass in proper order through the bolt with wiring apron 1 and lead wire adapter 2 behind outer hole 12 and the connecting hole 211 with the nut (the bolt and nut are the standard component, not shown in the figure) locking.
Preferably, as shown in fig. 3 and 5, the inner hole 11 and the lead connector 4 are arranged obliquely with respect to the plane of the wiring cover plate 1, and the inclination angles of the inner hole 11 and the lead connector 4 are the same as the taper of the lead adapter 2, although in actual operation, a certain error range is allowed to exist between the inclination angles of the inner hole 11 and the lead connector 4 and the taper of the lead adapter 2. Wherein the taper range of the lead adapter 2 is generally set to 10-30 °. Through setting up hole 11 and lead connector 4 slope and setting up lead wire adapter 2 into the toper, guaranteed that thermocouple sensor can be smooth-going transition to a lead wire section of thick bamboo and finally get into furnace from the wiring apron in, avoid excessively buckling thermocouple sensor, harm its life.
As shown in fig. 4, the utility model discloses switching device is connected one side on wiring apron 1, with lead wire adapter 2 and has seted up ring channel 13, ring channel 13 is located wiring apron 1 and first turn-ups 21's junction, has laid second sealing rubber ring 8 in the ring channel 13, and when wiring apron 1 and lead wire adapter 2 passed through bolt assembly locking, extrusion second sealing rubber ring 8 avoided the junction gap to appear, influences the test result.
Preferably, first seal rubber ring 5 and second seal rubber ring 8 are O type rubber seal.
The utility model discloses the one end of a switching device lead wire section of thick bamboo 3 is connected with toper lead wire adapter 2's tip, and wherein, lead wire adapter 2 can be connected or will both pass through welded seal fixed with lead wire section of thick bamboo 3 through screw thread and sealed glue can dismantle the mode, and the 3 other ends of lead wire section of thick bamboo are provided with second turn-ups 31, and second turn-ups 31 is used for can dismantling with the vacuum heat treatment stove and is connected.
The utility model discloses during switching device test furnace temperature homogeneity, pass lead wire fixation nut 6 respectively from a left side to the right side with a plurality of thermocouple sensor in proper order, lead connector 4, lead connector's hole 1, behind line adapter 2 and the lead wire section of thick bamboo 3, it is suitable to leave and length is connected with furnace and test jig, then respectively with wiring apron 1 and line adapter 2, lead wire fixation nut 6 and lead wire joint 4 and lead wire section of thick bamboo 3 and vacuum heat treatment furnace locking, when lead connector 4 is for inserting full thermocouple sensor, lead connector 4 that will not use is with the nut locking that has the shutoff, test at last.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. The switching device for testing the furnace temperature uniformity of the vacuum heat treatment furnace is characterized by comprising a wiring cover plate (1), a lead switching seat (2) and a lead barrel (3), wherein the wiring cover plate (1) and the lead barrel (3) are respectively arranged at two ends of the lead switching seat (2);
the wire connecting cover plate (1) is uniformly provided with a plurality of inner holes (11) and outer holes (12), each inner hole (11) is fixedly provided with a lead connector (4) with a hollow structure, the other end of each lead connector (4) is circumferentially provided with a locking thread (41), one end, provided with the locking thread (41), of each lead connector (4) is provided with a stepped hole (42), a first sealing rubber ring (5) is placed on the stepped surface of each stepped hole (42), each lead connector (4) is detachably connected with a lead fixing nut (6) through the locking thread (41), the top end of an inner threaded hole of the lead fixing nut (6) is provided with a groove (61), and an elastic gasket (7) is embedded in each groove (61);
the lead adapter (2) is of a conical hollow structure, the large-end of the conical lead adapter (2) is provided with a first flanging (21), the first flanging (21) is provided with connecting holes (211) which correspond to the outer holes (12) one by one, and the wiring cover plate (1) and the lead adapter (2) are locked by nuts after bolts sequentially penetrate through the outer holes (12) and the connecting holes (211);
one end of the lead cylinder (3) is connected with the lead adapter (2), the other end of the lead cylinder is provided with a second flanging (31), and the second flanging (31) is detachably connected with the vacuum heat treatment furnace.
2. The switching device for testing the furnace temperature uniformity of the vacuum heat treatment furnace according to claim 1, wherein an annular groove (13) is formed in one side, connected with the lead adapter (2), of the wiring cover plate (1), the annular groove (13) is located at the connection position of the wiring cover plate (1) and the first flanging (21), and a second sealing rubber ring (8) is laid in the annular groove (13).
3. The adapter device for testing the furnace temperature uniformity of the vacuum heat treatment furnace according to claim 2, wherein the first sealing rubber ring (5) and the second sealing rubber ring (8) are both O-shaped rubber sealing rings.
4. The adapter device for testing the temperature uniformity of the vacuum heat treatment furnace according to claim 1, wherein the number of the inner holes (11) is 9, and the central angles of two adjacent inner holes (11) are the same.
5. The adapter device for testing the furnace temperature uniformity of the vacuum heat treatment furnace according to claim 1, wherein the inner hole (11) and the lead connector (4) are arranged obliquely relative to the plane of the wiring cover plate (1), and the inclination angles of the inner hole (11) and the lead connector (4) are the same as the taper of the lead adapter seat (2).
6. The adapting device for testing the furnace temperature uniformity of the vacuum heat treatment furnace according to claim 5, wherein the taper range of the lead adapter (2) is 10-30 degrees.
7. The adapter device for testing the furnace temperature uniformity of the vacuum heat treatment furnace according to claim 1, wherein the lead adapter (2) is detachably connected with the lead barrel (3) through threads and a sealant or fixedly connected with the lead barrel through welding and sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120899956.5U CN215050535U (en) | 2021-04-28 | 2021-04-28 | Switching device for testing furnace temperature uniformity of vacuum heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120899956.5U CN215050535U (en) | 2021-04-28 | 2021-04-28 | Switching device for testing furnace temperature uniformity of vacuum heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215050535U true CN215050535U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120899956.5U Active CN215050535U (en) | 2021-04-28 | 2021-04-28 | Switching device for testing furnace temperature uniformity of vacuum heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215050535U (en) |
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2021
- 2021-04-28 CN CN202120899956.5U patent/CN215050535U/en active Active
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