Protection device for heating furnace of end quenching testing machine

Abstract

The utility model discloses a protection device for a heating furnace of an end quenching testing machine, which belongs to the technical field of steel experimental equipment and comprises an open-close type heating furnace and a furnace locking part arranged on the open-close type heating furnace and used for locking the open-close type heating furnace. The protection device for the heating furnace of the end quenching testing machine further comprises an extension part which is arranged on the furnace locking part and used for remotely opening the furnace locking part, the furnace locking part comprises a limiting locking block which is relatively fixed on the open-close type heating furnace, and an open groove is formed in the limiting locking block. The furnace locking part and the extending part are matched for use, so that the extending rod and the connecting block can be rigidly connected in a clamping manner, an operator can conveniently open the open-close type heating furnace outside a safe distance after a sample is heated, the skin of the operator is prevented from being fumigated and injured by high-temperature air emitted at the moment when the open-close type heating furnace is opened, and the safety of the operator is improved. And the safety of blow-in operation is improved, and an operator is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of steel material experimental equipment, in particular to a heating furnace protection device for an end quenching test machine. Background Art

[0002] Hardenability is an important heat treatment process performance of steel, which refers to the ability of steel to form martensite when quenched. Generally, an end quenching tester is used to perform end quenching tests on cylindrical specimens, and the depth of the hardened layer of the cylindrical specimen or the hardness distribution curve along the cross section is used to represent it. In order to facilitate the heating of cylindrical specimens, the existing end quenching tester generally uses a suspension frame to suspend and fix the cylindrical specimens, and uses an openable barrel-shaped heating furnace to wrap and heat the cylindrical specimens. In order to facilitate the quenching of the heated cylindrical specimens, an electric control rail is set under the heating furnace to facilitate the removal of the heating furnace after heating. However, since the heating furnace is an open-and-close design and its protective device only has a multi-layer heat-insulating shell on the outside, the operator needs to manually open the heating furnace after heating. Due to the limited length of human arms and the extremely high temperature in the heating furnace, the operator is easily fumigated by the high-temperature air in the heating furnace at the moment the heating furnace is opened, and the operating safety is poor. Utility Model Content

[0003] The utility model aims to provide a heating furnace protection device for an end quenching test machine, so as to solve the problem in the background technology that the operator is easily fumigated by the high temperature air in the heating furnace.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a heating furnace protection device for an end quenching test machine, comprising an openable heating furnace and a furnace locking portion provided on the openable heating furnace for locking the openable heating furnace. The heating furnace protection device for the end quenching test machine also includes:

[0006] An extension portion is arranged on the furnace locking portion and is used to remotely open the furnace locking portion.

[0007] The furnace locking unit comprises:

[0008] The limit locking block is relatively fixed on the opening and closing heating furnace, and the limit locking block is provided with an open groove.

[0009] A threaded sleeve is disposed in one of the open grooves.

[0010] A screw having threads arranged in the threaded sleeve.

[0011] A limit block and a connecting block are respectively fixed to the two ends of the screw rod, and a plurality of slots are arranged on the connecting block.

[0012] The extension portion comprises:

[0013] A plurality of clamping parts can be detachably mounted on the connecting block.

[0014] A support block fixed to one side of the clamping member.

[0015] An extension rod is fixed on the support block.

[0016] Furthermore, the clamping member comprises:

[0017] A support base is fixed on the support block.

[0018] An insert block is slidably connected to the receiving groove arranged on the support seat.

[0019] A compression spring is slidably mounted on a guide groove arranged on the inner wall of the receiving groove.

[0020] A plurality of stoppers are arranged on the support seat and are used to limit one end of the compression spring.

[0021] A pull ring is slidably mounted on the extension rod.

[0022] A steel wire rope is arranged between the pull ring and the insert block, and the steel wire rope passes through the receiving groove and the guide groove in sequence.

[0023] Furthermore, the compression spring is sleeved on the outside of the steel wire rope, and two ends of the compression spring are respectively fixed on the stop block and the insert block.

[0024] Furthermore, the insert block matches the card slot, and the storage slot corresponds to the card slot.

[0025] Furthermore, the stopper is located at the outer boundary of the guide groove, and one end of the stopper extends into the guide groove.

[0026] Furthermore, the clamping member also includes a limiting slideway fixed on the support seat, and the steel wire rope is slidably connected to a groove provided on the limiting slideway.

[0027] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0028] 1. The utility model can rigidly connect the extension rod and the connection block by means of a clamping connection through the use of the furnace locking part and the extension part, so that after the sample heating is completed, the operator can open the retractable heating furnace at a safe distance to avoid the high-temperature air emitted at the moment of opening the retractable heating furnace from fumigating the operator's skin, thereby improving the safety of the furnace opening operation and protecting the operator;

[0029] 2. The utility model can realize remote operation through the card connection between the extension rod and the connecting block, release the locking state of the open-close heating furnace, open half of the furnace body, and then remove the extension rod and use it to push the other half of the furnace body to completely open the open-close heating furnace, so that it is separated from the sample, which is convenient for subsequent end-to-end operation of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the utility model. Figure 1 ;

[0031] Figure 2 It is a three-dimensional schematic diagram of the utility model. Figure 2 ;

[0032] Figure 3 It is a three-dimensional schematic diagram of the utility model. Figure 3 ;

[0033] Figure 4 It is a three-dimensional schematic diagram of the utility model. Figure 4 ;

[0034] Figure 5 for Figure 4 Enlarged schematic diagram of part A.

[0035] In the figure: 1. Open and close heating furnace; 2. furnace locking part; 21. limit locking block; 22. open groove; 23. threaded sleeve; 24. screw; 25. limit block; 26. connecting block; 27. slot; 3. extension part; 31. support block; 32. extension rod; 33. snap-on piece; 331. support seat; 332. storage groove; 333. plug-in block; 334. guide groove; 335. compression spring; 336. wire rope; 337. pull ring; 338. limit slide; 339. stopper. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0037] like Figures 1 to 5 As shown, a heating furnace protection device for an end quenching test machine includes an openable heating furnace 1 and a furnace locking portion 2 provided on the openable heating furnace 1 for locking the openable heating furnace 1. The openable heating furnace 1 is composed of two semi-cylindrical furnace bodies hingedly connected. The heating furnace protection device for the end quenching test machine also includes:

[0038] An extension portion 3 is provided on the furnace locking portion 2 and is used for remotely opening the furnace locking portion 2 .

[0039] The furnace lock part 2 includes:

[0040] Relative to the limit locking block 21 fixed on the opening and closing heating furnace 1 , the two limit locking blocks 21 are respectively fixed at relative positions on the two furnace bodies, and an open groove 22 is provided on the limit locking block 21 .

[0041] A threaded sleeve 23 is disposed in one of the open grooves 22 .

[0042] The screw rod 24 is threadedly disposed in the threaded sleeve 23 .

[0043] The limit blocks 25 and the connecting blocks 26 are respectively fixed to the two ends of the screw rod 24 . The connecting block 26 is provided with a plurality of slots 27 . The limit block 25 is close to the limit locking block 21 opposite to the threaded sleeve 23 , and the connecting block 26 is far away from the two limit locking blocks 21 .

[0044] After the sample is fixed, the two furnace bodies are opened and the sample is wrapped between the two furnace bodies, and then the two furnace bodies are closed. Then, the connecting block 26 is pushed horizontally to make the end of the threaded sleeve 23 close to the limit block 25 deflect to the outside of the open groove 22, so that the limit block 25 is outside the open groove 22, and then the connecting block 26 is rotated clockwise to drive the screw rod 24 to rotate synchronously, so that the limit block 25 is far enough away from the threaded sleeve 23, and then the connecting block 26 is pushed in the reverse direction until the screw rod 24 is perpendicular to the surface of the limit locking block 21. At this time, the limit block 25 is parallel to the limit locking block 21, and the screw portion between the threaded sleeve 23 and the limit block 25 is located in the open groove 22 away from the threaded sleeve 23. The connecting block 26 is rotated counterclockwise to drive the screw 24 to rotate synchronously, so that the limit block 25 gradually approaches the threaded sleeve 23 until the limit block 25 hits the limit locking block 21 and the screw 24 is difficult to rotate. At this time, the closing and locking operation of the open and close heating furnace 1 is completed. The open and close heating furnace 1 can be started to heat the sample.

[0045] The extension part 3 comprises:

[0046] A plurality of clamping members 33 detachably mounted on the connecting block 26 .

[0047] The supporting block 31 is fixed to one side of the clamping member 33 .

[0048] The extension rod 32 is fixed on the support block 31 and is T-shaped as a whole.

[0049] After the sample is heated, the open and close heating furnace 1 is first controlled to stop, and then the clamping piece 33 is operated to clamp on the connecting block 26 to realize the fixed connection between the extension rod 32 and the connecting block 26. Then the user holds the end of the extension rod 32 away from the connecting block 26, and rotates the extension rod 32 clockwise to make the screw 24 rotate synchronously, so that the limit block 25 is far enough away from the threaded sleeve 23, and then the end of the extension rod 32 away from the connecting block 26 is pushed toward the direction close to the open and close heating furnace 1 by a certain deflection angle, so that the limit block 25 moves away from the open and close heating furnace 1 until the screw 24 between the limit block 25 and the limit sleeve 23 is The sample is then disengaged from the open groove 22 opposite to the threaded sleeve 23, and then the extension rod 32 is pulled to open the furnace body near the threaded sleeve 23, and then the clamping piece 33 is opened to disengage the extension rod 32 from the connecting block 26, and the end of the extension rod 32 near the supporting block 31 is used to push the other furnace body, so that the open and close heating furnace 1 is fully opened, which is convenient for the sample to be disengaged from the open and close heating furnace 1 and to facilitate subsequent end-to-end operations. Such operation makes it convenient for the operator to open the open and close heating furnace 1 at a safe distance, avoids the high-temperature air that comes out at the moment the open and close heating furnace 1 is opened to injure the operator's skin, improves the safety of the furnace opening operation, and protects the operator.

[0050] In this embodiment, the clamping member 33 includes:

[0051] The supporting base 331 is fixed on the supporting block 31 .

[0052] The insert block 333 is slidably connected to the receiving groove 332 disposed on the support base 331 .

[0053] A compression spring 335 is slidably mounted on a guide groove 334 disposed on the inner wall of the receiving groove 332 .

[0054] A plurality of stoppers 339 are disposed on the support seat 331 and are used to limit one end of the compression spring 335 .

[0055] The pull ring 337 is slidably mounted on the extension rod 32 , and the pull ring 337 is close to an end of the extension rod 32 away from the support base 331 .

[0056] The steel wire rope 336 is disposed between the pull ring 337 and the insert block 333 , and the steel wire rope 336 passes through the receiving groove 332 and the guide groove 334 in sequence.

[0057] The operation of the clamping member 33 does not need to be performed at close range. The user can hold the end of the extension rod 32 away from the clamping member 33, and then pull the pull ring 337 towards the direction close to the user's hand, and through the synchronous transmission of the wire rope 336, the plug block 333 is driven to retract into the receiving groove 332, and the compression spring 335 is synchronously compressed until the plug block 333 is completely received in the receiving groove 332, and then the clamping member 33 is pushed toward the connecting block 26, so that the clamping member 33 surrounds the connecting block 26 and the receiving groove 33 2 is aligned with the card slot 27, and finally the pull ring 337 is released. Under the push of the elastic force of the compression spring 335, the plug block 333 is partially pushed out from the storage slot 332, and the pushed-out part of the plug block 333 is inserted into the card slot 27, so that the fixed connection between the extension rod 32 and the connecting block 26 is completed. The two can be separated by operation again. The disassembly and installation are simple and fast, and the user does not need to be close to the opening and closing heating furnace 1. The user can operate remotely during the whole operation process, which greatly protects the safety of the user.

[0058] In this embodiment, the compression spring 335 is sleeved on the outside of the wire rope 336, and the two ends of the compression spring 335 are respectively fixed on the stop block 339 and the plug block 333. This design is convenient for limiting the compression spring 335 to prevent it from completely pushing the plug block 333 out of the storage groove 332. It can also cooperate with the guide groove 334 to constrain the freedom of the compression spring 335, so that it can only be linearly extended and retracted along the axial direction of the guide groove 334, thereby improving the operating stability of the plug block 333.

[0059] In this embodiment, the insertion block 333 matches the card slot 27, and the storage slot 332 corresponds to the card slot 27. Such a design makes it easy to quickly align the storage slot 332 with the card slot 27 when the card connector 33 is connected to the connecting block 26, thereby facilitating and quickly completing the installation or disassembly between the two, thereby improving operational efficiency and reducing operational difficulty.

[0060] In this embodiment, the block 339 is located at the outer boundary of the guide groove 334, and one end of the block 339 extends into the guide groove 334. Such a design can effectively utilize the portion of the block 339 extending into the guide groove 334 to limit the end of the compression spring 335, thereby preventing one end of the compression spring 335 from emerging from the guide groove 334, and can also reserve sufficient space for the wire rope 336 to pass through the guide groove 334.

[0061] In this embodiment, the clamping member 33 also includes a limiting slide 338 fixed on the support seat 331, and the wire rope 336 is slidably connected to the groove provided on the limiting slide 338. Such a design can limit and guide the wire rope 336 to prevent the wire rope 336 from being deviated from its trajectory when being pulled and from contacting and getting stuck with the block 339.

[0062] The above description is only the preferred embodiment of the utility model, and the parts not described in the utility model can be implemented by adopting or drawing on existing technologies. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. The changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the utility model should also fall within the protection scope of the utility model.

Claims

1. A heating furnace protection device for an end quenching test machine, comprising an openable heating furnace (1) and a furnace locking portion (2) provided on the openable heating furnace (1) for locking the openable heating furnace (1), characterized in that: The end quenching test machine heating furnace protection device also includes: An extension portion (3) provided on the furnace locking portion (2) and used for remotely opening the furnace locking portion (2); The furnace locking part (2) comprises: A limit locking block (21) fixed relatively to the opening and closing heating furnace (1), the limit locking block (21) being provided with an open groove (22); a threaded sleeve (23) disposed in one of the open grooves (22); A screw rod (24) threadedly disposed in the threaded sleeve (23); A limit block (25) and a connection block (26) respectively fixed to both ends of the screw rod (24), wherein the connection block (26) is provided with a plurality of slots (27); The extension portion (3) comprises: A plurality of clamping parts (33) detachably mounted on the connecting block (26); A support block (31) fixed to one side of the clamping member (33); An extension rod (32) is fixed on the support block (31).

2. The end quenching test machine heating furnace protection device according to claim 1 is characterized in that: The clamping member (33) comprises: A support seat (331) fixed on the support block (31); An insert block (333) slidably connected to a receiving groove (332) provided on the support seat (331); A compression spring (335) slidably mounted on a guide groove (334) provided on the inner wall of the receiving groove (332); A plurality of stoppers (339) provided on the support seat (331) and used for limiting one end of the compression spring (335); A pull ring (337) slidably mounted on the extension rod (32); A steel wire rope (336) is arranged between the pull ring (337) and the insert block (333), and the steel wire rope (336) passes through the receiving groove (332) and the guide groove (334) in sequence.

3. The end quenching test machine heating furnace protection device according to claim 2 is characterized in that: The compression spring (335) is sleeved on the outside of the steel wire rope (336), and two ends of the compression spring (335) are respectively fixed on the stop block (339) and the insert block (333).

4. The end quenching test machine heating furnace protection device according to claim 3 is characterized in that: The insert block (333) matches the card slot (27), and the storage slot (332) corresponds to the card slot (27).

5. The end quenching test machine heating furnace protection device according to claim 4 is characterized in that: The stopper (339) is located at the outer boundary of the guide groove (334), and one end of the stopper (339) extends into the guide groove (334).

6. The end quenching test machine heating furnace protection device according to claim 5, characterized in that: The clamping member (33) further comprises a limiting slideway (338) fixed on the supporting seat (331), and the steel wire rope (336) is slidably connected to a groove provided on the limiting slideway (338).

Images