Efficient heat preservation furnace body structure of trolley type tempering furnace

Abstract

The efficient heat preservation furnace body structure comprises a furnace body and a trolley, containing grooves are formed in the lower ends of the inner walls of the two sides of the furnace body, first abutting parts are arranged on the two sides of the trolley, the top ends of the first abutting parts are inclined planes, second abutting parts are arranged at the upper ends of the containing grooves, and the top ends of the second abutting parts are also inclined planes. A sealing block is arranged on the outer side of the second abutting part, a first inclined face is arranged at the bottom end of the sealing block and matched with the top end of the first abutting part, a groove used for containing the first abutting part is formed in one side of the sealing block, and a second inclined face is arranged on the top of the groove and matched with the top end of the second abutting part; a lead screw and a guide rod are longitudinally arranged at the positions, located at the bottom end of the groove, of the sealing block in a penetrating mode, the lead screw is driven by a driving assembly arranged on the furnace body to rotate, the lead screw drives the sealing block to descend, the sealing block is made to abut against the first abutting part and the second abutting part through the first inclined face and the second inclined face respectively, and sealing between the trolley and the furnace body is achieved. The sealing performance is better, the service life is longer, and the heat loss problem of the hearth is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric furnaces, and in particular relates to a high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace. Background Art

[0002] The trolley furnace is a national standard energy-saving periodic operation furnace, mainly used for heat treatment of various mechanical parts such as gray cast iron parts, ductile iron parts, steel balls, crusher hammers, wear-resistant liners, etc. Since the trolley needs to move, there will inevitably be a gap between the side of the trolley and the inner wall of the furnace, which will cause a large amount of heat loss in the furnace, which will increase energy consumption and reduce efficiency on the one hand, and affect the safety of the environment around the trolley furnace on the other hand.

[0003] Chinese patent document: CN201820169524.7, discloses a sealing structure for improving the temperature uniformity of a trolley furnace, including a connecting rod, one end of which is provided with a telescopic structure, which is fixedly arranged on the furnace wall, and the other end of the connecting rod is provided with a sealing block, which covers the gap between the trolley and the furnace wall, and the sealing bracket and the sealing block are raised by the cylinder and the support rod, and the sealing block blocks the gap between the trolley, and the sealing block and the gap between the trolley are tightly matched to achieve sealing. This sealing method is relatively simple, and this abutting sealing structure is prone to deformation after long-term use, which ultimately affects the sealing quality. Utility Model Content

[0004] In view of the above problems, the utility model discloses a high-efficiency heat-insulating furnace body structure of a trolley type tempering furnace, which solves the problem in the prior art that the sealing structure of the trolley furnace cannot effectively ensure the sealing after long-term use.

[0005] The specific technical solutions are as follows:

[0006] A high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace comprises a furnace body and a trolley, wherein the lower ends of the inner walls on both sides of the furnace body are transversely provided with accommodating grooves, and both sides of the trolley are provided with first abutting parts protruding outward, the top of the first abutting part is provided with an inclined surface, and the upper end of the accommodating groove is provided with a second abutting part, and the top of the second abutting part is also provided with an inclined surface, and a sealing block is horizontally sleeved on the outer side of the second abutting part, and the bottom end of the sealing block is provided with a first inclined surface and is adapted to the top of the first abutting part, and one side of the sealing block is provided with a groove for accommodating the first abutting part The top of the groove is provided with a second inclined surface and is adapted to the top of the second abutting portion; the sealing block is located at the bottom end of the groove and is longitudinally penetrated by a screw rod and a guide rod, and the two ends of the guide rod are fixedly connected to the top and bottom ends of the accommodating groove, and the two ends of the screw rod are respectively rotatably arranged at the top and bottom ends of the accommodating groove, and the screw rod is driven to rotate by a driving assembly arranged on the furnace body, so that the screw rod drives the sealing block to descend and makes the sealing block respectively abut the first abutting portion on the trolley and the second abutting portion on the furnace body through the first inclined surface and the second inclined surface, thereby realizing the sealing between the trolley and the furnace body.

[0007] Furthermore, the driving assembly includes a driving motor, a worm and a worm wheel. The worm is horizontally rotatably arranged in the accommodating groove. One end of the worm passes through the furnace body and is driven to rotate by a driving motor arranged on the outer wall of the furnace body. The worm wheel is arranged on the screw, and the worm wheel is meshingly connected with the worm, so that the driving motor drives the worm wheel to rotate through the worm and realizes the lifting and lowering of the sealing block driven by the screw.

[0008] Furthermore, the accommodating groove is provided at one end of the furnace opening with a recess for horizontal embedding of the first abutting portion of the trolley.

[0009] Furthermore, the lengths of the first abutting portion, the second abutting portion and the sealing block are all adapted to the length of the trolley.

[0010] Furthermore, a furnace door is provided at one end of the furnace opening of the furnace body, and the furnace opening is driven to rise and fall by a lifting bracket.

[0011] Furthermore, the front end of the trolley is provided with an inclined surface, and one end of the inner wall of the furnace body is also provided with an inclined surface adapted to the front end of the trolley, so as to achieve the pressing and positioning between the front end of the trolley and one end of the inner wall of the furnace body.

[0012] The beneficial effects of the utility model are embodied in:

[0013] Compared with the prior art, the furnace body sealing structure of the utility model has inclined surfaces on both sides of the sealing block, and the sealing block is pressed and sealed against the side wall of the trolley and the inner wall of the furnace body to achieve a double sealing structure with better sealing and longer service life, effectively avoiding the problem of heat loss in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure between the furnace body and the trolley in the utility model.

[0015] Figure 2 It is a side sectional view of the furnace body and the trolley in the utility model.

[0016] Figure 3 It is a side sectional view of the furnace body in the utility model.

[0017] Figure 4 It is a schematic diagram of the sealing structure between the furnace body and the trolley in the utility model.

[0018] Furnace body 1, trolley 2, first abutment portion 21, accommodating groove 3, second abutment portion 31, notch 32, sealing block 4, groove 41, first inclined surface 42, second inclined surface 43, guide rod 5, screw rod 6, drive motor 7, worm 71, connecting shaft 711, worm wheel 72, furnace door 8. DETAILED DESCRIPTION

[0019] In order to make the technical solution of the utility model clearer, the utility model is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the utility model and any solution derived from conventional reasoning shall fall within the protection scope of the utility model. The fixed connection and fixed setting mentioned in the utility model are all common connection methods in the mechanical field, including welding, bolt and nut connection, and screw connection.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] like Figure 1-4As shown, the present embodiment provides a high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace, including a furnace body 1 and a trolley 2. Receiving grooves 3 are transversely opened at the lower ends of the inner walls on both sides of the furnace body 1. The length of the receiving grooves 3 is adapted to the length of the trolley 2. Both sides of the trolley 2 are provided with first abutting portions 21 protruding outward. The first abutting portions 21 are arranged along the length direction of the trolley 2 and extend into the receiving groove 3. The top end of the first abutting portion 21 is arranged as an inclined surface, and a second abutting portion 31 is arranged at the upper end of the receiving groove 3. The top end of the second abutting portion 31 is also arranged as an inclined surface. A sealing block 4 is horizontally sleeved on the outer side of the second abutting portion 31. The sealing block 4 is in a long strip structure and adapted to the size of the receiving groove 3. A first inclined surface 42 is arranged at the bottom end of the sealing block 4 and is adapted to the top end of the first abutting portion 21. A sealing block 4 is provided on one side for accommodating the first abutting portion 2 1, a second inclined surface 43 is provided at the top of the groove 41 and is adapted to the top of the second abutting portion 31; the sealing block 4 is located at the bottom end of the groove 41 and is longitudinally penetrated by a screw rod 6 and a guide rod 5, the guide rod 5 is evenly distributed along the length direction of the sealing block 4, and the upper and lower ends of the guide rod 5 are fixedly connected to the top and bottom ends of the accommodating groove 3 to achieve a guiding effect, the number of screw rods 6 is two and distributed at both ends of the sealing block 4, the upper and lower ends of the screw rod 6 are respectively rotatably arranged at the top and bottom ends of the accommodating groove 3 through a rotating seat, and the screw rod 6 is driven to rotate by a driving assembly arranged on the furnace body 1, so that the screw rod 6 drives the sealing block 4 to descend and makes the sealing block 4 respectively abut against the first abutting portion 21 on the trolley 2 and the second abutting portion 31 on the furnace body 1 through the first inclined surface 42 and the second inclined surface 43, so as to achieve sealing between the trolley 2 and the furnace body 1.

[0022] In this embodiment, the driving assembly includes a driving motor 7, a worm 71 and a worm wheel 72. The two ends of the worm 71 are provided with a connecting shaft 711 to extend its length. The bearings at both ends of the connecting shaft 711 are horizontally rotatably arranged at the two ends of the accommodating groove 3, and one end of the connecting shaft 711 passes through the furnace body 1 through the connecting shaft 711 and is driven to rotate by the driving motor 7 arranged on the outer wall of the furnace body 1. The worm wheel 72 is respectively arranged at the lower end of each screw rod 6, and one side of the worm wheel 72 is meshed and connected with a worm 71, so that the driving motor 7 drives the worm wheel 72 to rotate through the worm 71, and realizes that the screw rod 6 drives the sealing block 4 to rise and fall.

[0023] In this embodiment, the accommodating groove 3 is provided with a notch 32 at one end of the furnace mouth for horizontal embedding of the first abutting portion 21 of the trolley 2, so that when the trolley 2 enters the furnace body 1, the first abutting portions 21 on both sides thereof are displaced into the accommodating groove 3 through the notch 32.

[0024] In this embodiment, the lengths of the first abutting portion 21 , the second abutting portion 31 and the sealing block 4 are all adapted to the length of the trolley 2 .

[0025] In this embodiment, a furnace door 8 is provided at one end of the furnace opening of the furnace body 1, and the furnace opening is driven to rise and fall and to be closed by a lifting bracket.

[0026] In this embodiment, the front end of the trolley 2 is provided with an inclined surface, and one end of the inner wall of the furnace body 1 is also provided with an inclined surface adapted to the front end of the trolley 2, so that when the trolley 2 enters the furnace body 1, the front end of the trolley 2 is pressed against one end of the inner wall of the furnace body 1 to achieve the sealing of the front end of the furnace body 1.

[0027] Working principle of the utility model: when the trolley 2 enters the furnace body 1, the sealing block 4 is driven to descend by the driving motor 7. At this time, the sealing block 4 abuts against the first abutting portion 21 on the trolley 2 through its first inclined surface 42, and at the same time, the second inclined surface 43 in the groove 41 of the sealing block 4 abuts against the second abutting portion 31 on the furnace body 1. The mutual pressing contact between the inclined surfaces can improve the sealing effect to ensure the sealing performance.

[0028] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace, comprising a furnace body (1) and a trolley (2), characterized in that: The lower ends of the inner walls on both sides of the furnace body (1) are both transversely provided with accommodating grooves (3); both sides of the trolley (2) are both protruding outwardly provided with first abutting portions (21); the top end of the first abutting portion (21) is provided with an inclined surface; and the upper end of the accommodating groove (3) is provided with a second abutting portion (31); the top end of the second abutting portion (31) is also provided with an inclined surface; a sealing block (4) is horizontally sleeved on the outer side of the second abutting portion (31); the bottom end of the sealing block (4) is provided with a first inclined surface (42) which is matched with the top end of the first abutting portion (21); a groove (41) for accommodating the first abutting portion (21) is provided on one side of the sealing block (4); the top of the groove (41) is provided with a second inclined surface (43) which is matched with the first inclined surface (44); The top ends of the two abutting portions (31) are adapted to each other; the sealing block (4) is provided with a screw rod (6) and a guide rod (5) which are longitudinally penetrated at the bottom end of the groove (41); the two ends of the guide rod (5) are fixedly connected to the top end and the bottom end of the accommodating groove (3); the two ends of the screw rod (6) are rotatably arranged at the top end and the bottom end of the accommodating groove (3), respectively; and the screw rod (6) is driven to rotate by a driving assembly arranged on the furnace body (1), so that the screw rod (6) drives the sealing block (4) to descend and the sealing block (4) is respectively abutted against the first abutting portion (21) on the trolley (2) and the second abutting portion (31) on the furnace body (1) through the first inclined surface (42) and the second inclined surface (43), thereby achieving sealing between the trolley (2) and the furnace body (1).

2. The high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace according to claim 1, characterized in that: The driving assembly comprises a driving motor (7), a worm (71) and a worm wheel (72); the worm (71) is horizontally rotatably arranged in the receiving groove (3); one end of the worm (71) passes through the furnace body (1) and is driven to rotate by the driving motor (7) arranged on the outer wall of the furnace body (1); the worm wheel (72) is arranged on the screw (6), and the worm wheel (72) is meshingly connected with the worm (71), so that the driving motor (7) drives the worm wheel (72) to rotate through the worm (71) and realizes the screw (6) driving the sealing block (4) to rise and fall.

3. The high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace according to claim 1, characterized in that: The accommodating groove (3) is provided with a notch (32) located at one end of the furnace opening for horizontal embedding of the first abutting portion (21) of the trolley (2).

4. The high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace according to claim 3, characterized in that: The lengths of the first abutting portion (21), the second abutting portion (31) and the sealing block (4) are all adapted to the length of the trolley (2).

5. The high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace according to claim 1, characterized in that: A furnace door (8) is provided at one end of the furnace opening of the furnace body (1), and the furnace opening is driven to rise and fall by a lifting bracket.

6. The high-efficiency heat-insulating furnace body structure of a trolley-type tempering furnace according to claim 1, characterized in that: The front end of the trolley (2) is provided with an inclined surface, and one end of the inner wall of the furnace body (1) is also provided with an inclined surface adapted to the front end of the trolley (2), so that the front end of the trolley (2) and one end of the inner wall of the furnace body (1) are pressed and positioned.

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