Lifting appliance for induction hardening of roller shell

Abstract

The utility model discloses a lifting appliance for induction hardening of a roller sleeve, which belongs to the technical field of rollers and comprises a lifting rod penetrating through the roller sleeve to drive the roller sleeve to move, a lower support frame for supporting the roller sleeve is sleeved on the lifting rod, and an upper support frame for pressing the roller sleeve is sleeved at a position, above the upper support frame, of the lifting rod; a bottom plate is arranged at one end of the suspender, a clamping groove is formed in the other end of the suspender, and the end, provided with the clamping groove, of the suspender is detachably connected with a connector connected with a crown block lifting hook. According to the utility model, the roller sleeve can be conveniently adjusted from a horizontal type to a vertical type, and the roller sleeve can be conveniently transferred to a vertical quenching machine tool for quenching.

Description

Technical Field

[0001] This utility model belongs to the field of rolling mill technology, specifically relating to a lifting tool for induction hardening of rolling mill sleeves. Background Technology

[0002] Roller sleeves are important industrial components, mainly used in various industrial machinery such as vertical mills and rolling mills. Their primary function is to participate in the material processing process. For example, in vertical mills, roller sleeves are key spare parts, and their quality directly affects the normal operation and schedule of the mill.

[0003] Roller sleeves come in a wide range of materials and have diverse applications. For example, some roller sleeves are made of ceramic, which possesses wear resistance, corrosion resistance, high temperature resistance, and low friction, making them suitable for high-temperature, high-pressure, and high-precision applications. They are widely used in industries such as steel, chemical, power, and textiles. In addition, there are high-chromium roller sleeves, which play a crucial role in the production of vertical mill / high-chromium roller sleeve liners, exhibiting high wear resistance and reliability.

[0004] High-hardness forged steel roller sleeves require surface induction hardening on a vertical hardening machine tool during heat treatment. The workpiece is fixed by upper and lower centers on the vertical hardening machine tool, but the roller sleeve is a hollow product without a center hole and cannot be adjusted from horizontal to vertical hoisting, so it cannot be put on the hardening machine tool for induction hardening. Utility Model Content

[0005] To address the problem that existing technology cannot adjust roller sleeves from a horizontal position to a vertical position for hoisting into a vertical quenching machine for quenching, this utility model provides a lifting tool for induction quenching of roller sleeves, which can easily adjust roller sleeves from a horizontal position to a vertical position and conveniently transfer roller sleeves to a vertical quenching machine for quenching.

[0006] The technical solution adopted by the lifting tool for induction hardening of roller sleeves in this utility model is as follows:

[0007] A lifting device for induction hardening of roller sleeves includes a lifting rod that passes through the roller sleeve and drives the roller sleeve to move. A lower support frame that supports the roller sleeve is fitted on the lifting rod, and an upper support frame that presses down on the roller sleeve is fitted on the lifting rod above the upper support frame.

[0008] One end of the boom is equipped with a base plate, and the other end is provided with a slot. The end of the boom with the slot is detachably connected to a connector that connects to the crane hook.

[0009] A further improvement of this utility model is that: both the lower support frame and the upper support frame have through holes at their centers, and the diameter of the through holes is larger than the diameter of the hanging rod.

[0010] The further improvement of the technical scheme of the utility model lies in that: the side wall of the lower support frame and the side wall of the upper support frame are fixedly connected with a plurality of support rods in a uniform circumferential direction, and the end of each support rod away from the corresponding support frame is provided with a step in contact with the roller sleeve.

[0011] The further improvement of the technical scheme of the utility model lies in that: the step of the corresponding support rod of the lower support frame is arranged upwards, and the step of the corresponding support rod of the upper support frame is arranged downwards.

[0012] The further improvement of the technical scheme of the utility model lies in that: the inner diameter of the annular ring formed by the steps of the corresponding support rods of the lower support frame and the upper support frame is smaller than the inner diameter of the roller sleeve, and the outer diameter of the annular ring is greater than the inner diameter of the roller sleeve.

[0013] The further improvement of the technical scheme of the utility model lies in that: the bottom of the connecting head is provided with a connecting groove matched with the suspender, the diameter of the connecting groove is greater than the diameter of the suspender, a plurality of top screws penetrating through the side wall of the connecting head and threadedly connected with the side wall of the connecting head are uniformly arranged on the side wall of the connecting head in a circumferential direction at the position corresponding to the connecting groove, the diameter of the top screw is the same as the width of the clamping groove, and the end of each top screw outside the connecting head is fixedly connected with a rotating head.

[0014] The further improvement of the technical scheme of the utility model lies in that: the outer wall of the connecting head is fixedly connected with a plurality of hanging rings, and the plurality of hanging rings are divided into two groups and are mirror-symmetrically arranged on the two sides of the outer wall of the connecting head.

[0015] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model includes:

[0016] In the utility model, the suspender can pass through the roller sleeve, the roller sleeve sleeved on the suspender can be supported by the lower support frame to prevent the roller sleeve from falling downward and out of the suspender, the roller sleeve sleeved on the suspender can be pressed downward by the gravity of the upper support frame, so that the roller sleeve is sleeved on the suspender through the cooperation of the lower support frame and the upper support frame, the connecting head is convenient for being hooked with the crown block, so that the suspender is driven to move, the roller sleeve can be moved by the suspender, so that the roller sleeve is conveniently adjusted from the horizontal type to the vertical type, and the roller sleeve adjusted to the vertical type is moved into the vertical quenching machine for quenching.

[0017] In the utility model, the diameter of the through hole on the lower support frame and the upper support frame is greater than the diameter of the suspender, so that the lower support frame and the upper support frame are conveniently placed on the suspender, and the diameter of the through hole on the lower support frame and the upper support frame is smaller than the diameter of the connecting head, so that the upper support frame can be prevented from being out of the suspender during use of the utility model.

[0018] The inner diameter of the annular ring formed by the lower supporting frame and the corresponding supporting rod of the upper supporting frame is smaller than the inner diameter of the roller sleeve, and the outer diameter of the annular ring is larger than the inner diameter of the roller sleeve, so that the roller sleeve is conveniently contacted with the step.

[0019] The utility model discloses a rotating top pin is passed through until entering to the card slot, thereby connecting head and derrick are connected together, and through the setting of the ring, the ring and the headstock hook are connected together, thereby drive the utility model and roller sleeve move. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a kind of roller sleeve induction quenching with the structure schematic diagram of lifting appliance application of the utility model;

[0021] Figure 2 It is a kind of roller sleeve induction quenching with the structure schematic diagram of lifting appliance of the utility model;

[0022] Figure 3 It is a kind of roller sleeve induction quenching with the explosion structure schematic diagram of lifting appliance of the utility model;

[0023] Figure 4 It is a kind of roller sleeve induction quenching with the structure schematic diagram of connecting head of the utility model;

[0024] Figure 5 It is a kind of roller sleeve induction quenching with the structure schematic diagram of lower supporting frame or upper supporting frame of the utility model.

[0025] In the drawing, 1, roller sleeve;2, derrick;21, bottom plate;22, card slot;

[0026] 3, lower supporting frame;

[0027] 4, upper supporting frame;

[0028] 5, connecting head;51, connecting groove;52, top pin;53, rotating head;54, ring;

[0029] 6, through hole;7, supporting rod;71, step. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific embodiment and referring to the drawings. In the following description, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0031] Firstly refer to Figure 2 And Figure 3The utility model discloses a crane, which comprises a boom 2, a bottom plate 21 connected to one end of the boom 2 through a connecting seat, and a connecting head 5 connected to the other end of the boom 2 through a ring-shaped clamping groove 22.

[0032] The boom 2 is detachably sleeved with a lower support frame 3 and an upper support frame 4, and the upper support frame 4 is located above the lower support frame 3 when the boom 2 is in a vertical state. Figure 5 As shown in the embodiment, a through hole 6 matched with the boom 2 is formed at the center of the upper support frame 4 and the lower support frame 3, the diameter of the through hole 6 is greater than the diameter of the boom 2 and less than the diameter of the connecting head 5, so that the lower support frame 3 and the upper support frame 4 are gap-fitted with the boom 2; in the embodiment, the side walls of the upper support frame 4 and the lower support frame 3 are fixedly connected with a plurality of support rods 7 parallel to the corresponding support frames, and a step 71 matched with the roller sleeve 1 is formed at the end of each support rod 7 away from the corresponding support frame; the inner diameter of the annular ring formed by connecting the steps 71 of the corresponding support rods 7 of the lower support frame 3 and the upper support frame 4 is less than the inner diameter of the roller sleeve 1, and the outer diameter of the annular ring is greater than the inner diameter of the roller sleeve 1.

[0033] In the embodiment, the steps 71 of the corresponding support rods 7 of the lower support frame 3 are upwardly formed, and the steps 71 of the corresponding support rods 7 of the upper support frame 4 are downwardly formed, so as to facilitate the contact between the steps 71 of the corresponding support rods 7 of the lower support frame 3 and the upper support frame 4 and the roller sleeve 1.

[0034] In the utility model, the connecting head 5 is detachably connected with the boom 2, when the connecting head 5 is separated from the boom 2, the lower support frame 3, the roller sleeve 1 and the upper support frame 4 can be sequentially sleeved on the boom 2, and when the connecting head 5 is connected with the boom 2, the utility model and the roller sleeve 1 can be moved by the crown block. Figure 4 As shown in the embodiment, a connecting groove 51 is formed at the end of the connecting head 5 connected with the boom 2, the diameter of the connecting groove 51 is greater than the diameter of the boom 2, the end of the boom 2 provided with the clamping groove 22 can be inserted into the connecting groove 51, a plurality of jackscrews 52 extending into the connecting groove 51 are arranged on the side wall of the connecting head 5 at the position corresponding to the connecting groove 51, the number of the jackscrews 52 can be even numbers such as 2, 4, 6, etc., the plurality of jackscrews 52 are uniformly distributed on the side wall of the connecting head 5 in the circumferential direction, each jackscrew 52 penetrates through the side wall of the connecting head 5 and is threadedly connected with the side wall of the connecting head 5, and the diameter of the jackscrew 52 is preferably the same as the width of the clamping groove 22.

[0035] In the embodiment, in order to facilitate the rotation of the jackscrew 52, the end of each jackscrew 52 outside the connecting head 5 is fixedly connected with a rotating head 53. When the connecting head 5 and the boom 2 are connected, the connecting groove 51 is inserted into one end of the boom 2 provided with the clamping groove 22, and the end of the jackscrew 52 is inserted into the clamping groove 22 by rotating the rotating head 53, so that the connecting head 5 and the boom 2 are connected together.

[0036] The working principle of the lifting appliance for roller sleeve induction quenching in the embodiment is as follows: when the lifting appliance is not used, the boom 2, the connecting head 5, the lower support frame 3, the upper support frame 4 and the roller sleeve 1 are in a separated state.

[0037] When the lifting appliance is used, the boom 2 is in a flat state, then the lower support frame 3 is sleeved on the boom 2, and then the boom 2 and the lower support frame 3 are moved until the boom 2 passes through the horizontal roller sleeve 1, then the upper support frame 4 is sleeved on the boom 2, and the connecting head 5 and the boom 2 are connected together, and then the hook of the crown block and the hanging ring 54 of the connecting head 5 are hooked together.

[0038] Then the boom 2 is lifted by the crown block, so that the boom 2 is counterclockwise rotated to a vertical state, and the rotating boom 2 drives the lower support frame 3, the roller sleeve 1 and the upper support frame 4 to be counterclockwise rotated, so that the roller sleeve 1 is adjusted from a horizontal state to a vertical state, as shown in FIG. 6. Figure 1 Under the action of gravity, the bottom of the roller sleeve 1 is attached to the step 71 of the corresponding supporting rod 7 of the lower support frame 3, and the top of the roller sleeve 1 is attached to the step 71 of the corresponding supporting rod 7 of the upper support frame 4; then the utility model and the roller sleeve 1 are moved to the vertical quenching machine by the crown block, and the roller sleeve 1 is quenched.

[0039] When the roller sleeve 1 needs to be removed, the above steps are reversely operated.

[0040] In the above embodiment, the lifting appliance for roller sleeve induction quenching is provided, and the boom can pass through the roller sleeve, the lower support frame can hold the roller sleeve sleeved on the boom to prevent the roller sleeve from falling downward and out of the boom, the upper support frame can press the roller sleeve sleeved on the boom downward by using the gravity of the upper support frame, so that the roller sleeve is sleeved on the boom by the cooperation of the lower support frame and the upper support frame, the connecting head is convenient for being hooked with the crown block, so as to drive the boom to move, the boom can drive the roller sleeve to move, so that the roller sleeve is conveniently adjusted from a horizontal state to a vertical state, and the roller sleeve adjusted to the vertical state is moved to the vertical quenching machine for quenching.

[0041] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the design concept and scope of the present application. Without departing from the design concept of the present application, various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art shall fall within the protection scope of the present application, and the technical content of the present application claimed for protection has been entirely recorded in the claims.

Claims

1. A hanger for roll sleeve induction quenching, characterized by: The hanger (2) is provided with the lower support frame (3) supporting the roller sleeve (1), and the upper support frame (4) is arranged above the hanger (2) and supports the roller sleeve (1). The bottom plate (21) is arranged at one end of the hanger (2), the clamping groove (22) is arranged at the other end of the hanger (2), and the end of the hanger (2) provided with the clamping groove (22) is detachably connected with the connecting head (5) connected with the overhead crane hook.

2. The hanger for roller cover induction quenching according to claim 1, characterized in that: The center of the lower support frame (3) and the upper support frame (4) is provided with the through hole (6), and the diameter of the through hole (6) is greater than the diameter of the hanger (2) and less than the diameter of the connecting head (5).

3. The hanger for roller shell induction quenching according to claim 1, characterized in that: The side wall of the lower support frame (3) and the upper support frame (4) is uniformly and circumferentially connected with the plurality of support rods (7), and the end of each support rod (7) away from the corresponding support frame is provided with the step (71) in contact with the roller sleeve (1).

4. The hanger for roller cover induction quenching according to claim 3, characterized in that: The connecting groove (51) corresponding to the step (71) of the lower support frame (3) is arranged upward, and the step (71) corresponding to the support rod (7) of the upper support frame (4) is arranged downward.

5. The hanger for roller shell induction quenching according to claim 3, characterized in that: The inner diameter of the circular ring formed by the steps (71) corresponding to the support rods (7) of the lower support frame (3) and the upper support frame (4) is less than the inner diameter of the roller sleeve (1), and the outer diameter of the circular ring is greater than the inner diameter of the roller sleeve (1).

6. The hanger for roller shell induction quenching according to claim 1, characterized in that: The bottom of the connecting head (5) is provided with the connecting groove (51) matched with the hanger (2), the diameter of the connecting groove (51) is greater than the diameter of the hanger (2), the side wall of the connecting head (5) is uniformly provided with the plurality of top screws (52) penetrating the side wall of the connecting head (5) and threadedly connected with the side wall of the connecting head (5) at the positions corresponding to the connecting groove (51), the diameter of the top screw (52) is the same as the width of the clamping groove (22), and the end of each top screw (52) outside the connecting head (5) is fixedly connected with the rotating head (53).

7. The hanger for induction quenching of a roll cover according to claim 6, characterized in that: The outer wall of the connecting head (5) is fixedly connected with the plurality of hanging rings (54), and the plurality of hanging rings (54) are divided into two groups and are mirror-symmetrically arranged on the two sides of the outer wall of the connecting head (5).

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