Roller way lifting device

Abstract

The invention provides a roller way lifting device which comprises a worm gear lifting assembly, and an input rod of the worm gear lifting assembly is provided with a driving assembly. The lifting plate is fixedly connected with an output rod of the worm wheel lifting assembly; a shell of the hydraulic cylinder is fixedly connected with the lifting plate; the supporting rod is fixedly mounted on the upper end surface of the lifting plate; and the connecting plate is connected with the roller way, a supporting column is fixedly arranged at the lower end of the connecting plate, and a supporting groove corresponding to an output shaft of the hydraulic cylinder is formed in the supporting column. The lifting mechanism has the beneficial effects that compared with a traditional mode that one motor drives a plurality of worm wheel lifting assemblies to act through a synchronous shaft, the lifting mechanism needs a small installation space, the installation process is simple, and maintenance is convenient in the later period.

Description

Technical Field

[0001] The invention belongs to the technical field of roller equipment, and in particular relates to a roller lifting device. Background Art

[0002] In the H-beam finishing area, the roller table adopts a roller lifting device to adjust the roller height after the first group of finishing rolling to receive steel from the previous process. The current installation result of the roller lifting device is that the synchronous shaft is driven to rotate by the motor output shaft, and the synchronous shaft drives the output shafts of multiple worm gear elevators to move. The following problems exist during use: First, the setting of multiple synchronous shafts requires a larger installation space for the device, and later maintenance is not convenient; second, the output shaft of the worm gear elevator is fixedly connected to the roller frame. When the lifting speeds of multiple worm gear elevators are inconsistent, it will cause damage to the connection between the output shaft and the roller frame, or cause damage to the worm gear elevator. Summary of the Invention

[0003] In view of this, the present invention aims to provide a roller lifting device to solve at least one of the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A roller table lifting device, comprising:

[0006] A worm gear lifting assembly, the input rod of which is provided with a drive assembly;

[0007] A lifting plate, the lifting plate being fixedly connected to the output rod of the worm gear lifting assembly;

[0008] A hydraulic cylinder, wherein a housing of the hydraulic cylinder is fixedly connected to the lifting plate;

[0009] A support rod, the support rod being fixedly mounted on the upper end surface of the lifting plate;

[0010] A connecting plate is connected to the roller table, a support column is fixedly provided at the lower end of the connecting plate, and a support groove corresponding to the output shaft of the hydraulic cylinder is opened on the support column.

[0011] Furthermore, a support head is fixedly provided on the output shaft of the hydraulic cylinder, the diameter of the support groove matches the diameter of the support head, and the support head is installed on the inner side of the support groove.

[0012] Furthermore, the edge of the support groove adjacent to the hydraulic cylinder adopts a chamfered structure, and the outer edge of the support head adjacent to one end of the support column adopts a chamfered structure.

[0013] Furthermore, a bottom tube is provided at the lower end of the worm gear lifting assembly, a bottom plate is fixedly provided at the lower end of the bottom tube, the upper end of the bottom plate is fixedly connected to the side wall of the bottom tube through reinforcing ribs, the upper end of the bottom tube is fixedly connected to the shell of the worm gear lifting assembly, and the output rod of the worm gear lifting assembly is located on the inner side of the bottom tube.

[0014] Furthermore, the length of the support rod is greater than the total length of the hydraulic cylinder output shaft in a retracted state.

[0015] Furthermore, a sleeve is provided on the outside of the support tube, and the inner diameter of the sleeve matches the diameter of the support rod;

[0016] A compression spring is provided between the sleeve and the lifting plate.

[0017] Furthermore, a baffle is fixedly provided at the upper end of the sleeve, and the diameter of the baffle is larger than the outer diameter of the sleeve;

[0018] The compression spring is located between the baffle plate and the lifting plate, and the compression spring is located outside the sleeve.

[0019] Furthermore, a column is fixedly provided on one end of the baffle away from the lifting plate, and the end surface of the column away from the lifting plate is a spherical surface.

[0020] Furthermore, a positioning ring corresponding to the column is fixedly provided on the lower end surface of the connecting plate.

[0021] Furthermore, there are multiple support rods, and the multiple support rods are arranged circumferentially along the hydraulic cylinder.

[0022] Compared with the prior art, the roller table lifting device described in the present invention has the following beneficial effects:

[0023] Compared with the traditional method of using a motor to drive multiple worm gear lifting components through a synchronous shaft, the roller lifting device described in the present invention requires less installation space, has a simple installation process, and is easy to maintain later. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the roller lifting device in use according to an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of the device according to an embodiment of the present invention;

[0027] Figure 3 The embodiment of the present invention Figure 2Schematic diagram of the structure at A in the middle;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the bottom tube according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the lifting plate according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the sleeve according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the connecting plate according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the cross-sectional structure of the device according to an embodiment of the present invention;

[0033] Figure 9 The embodiment of the present invention Figure 8 Schematic diagram of the structure at point B.

[0034] Description of reference numerals:

[0035] 1. Roller; 2. Bottom tube; 3. Worm gear lifting assembly; 4. Lifting plate; 5. Casing; 6. Connecting plate; 7. Compression spring; 8. Hydraulic cylinder; 201. Bottom plate; 202. Reinforcement rib; 301. Input rod; 302. Output rod; 401. Support rod; 501. Baffle; 502. Column; 601. Support column; 602. Support groove; 603. Positioning ring; 801. Support head. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] like Figures 1 to 9 As shown, a roller lifting device includes:

[0041] The worm gear lifting assembly 3, the input rod 301 of the worm gear lifting assembly 3 is provided with a driving assembly; the worm gear lifting assembly 3 adopts but is not limited to the existing worm gear elevator, the driving assembly is a reduction motor, and the output rod 302 of the worm gear lifting assembly 3 is correspondingly provided with a position sensor. When the output rod 302 reaches the specified position, the motor stops moving.

[0042] The lifting plate 4 is fixedly connected to the output rod 302 of the worm gear lifting assembly 3;

[0043] A hydraulic cylinder 8, the housing of which is fixedly connected to the lifting plate 4;

[0044] Support rod 401, support rod 401 is fixedly mounted on the upper end surface of lifting plate 4;

[0045] The connecting plate 6 is connected to the roller table 1 , and a support column 601 is fixedly provided at the lower end of the connecting plate 6 . The support column 601 is provided with a support groove 602 corresponding to the output shaft of the hydraulic cylinder 8 .

[0046] The output shaft of the hydraulic cylinder 8 is fixed with a support head 801. The diameter of the support groove 602 matches the diameter of the support head 801. The support head 801 is installed inside the support groove 602. The support head 801 is a structural member made of wear-resistant steel, which increases the service life of the device.

[0047] The edge of the support groove 602 adjacent to the hydraulic cylinder 8 is chamfered, and the outer edge of the support head 801 adjacent to one end of the support column 601 is chamfered. The chamfered structure serves as a guide when the support head 801 is inserted into the support groove 602, facilitating the insertion of the support head 801. The insertion of the support head 801 into the support groove 602 positions the roller table 1, preventing the roller table 1 from moving horizontally.

[0048] A bottom tube 2 is provided at the lower end of the worm gear lifting assembly 3, and a bottom plate 201 is fixed to the lower end of the bottom tube 2. The upper end of the bottom plate 201 is fixedly connected to the side wall of the bottom tube 2 through a reinforcing rib 202. The upper end of the bottom tube 2 is fixedly connected to the shell of the worm gear lifting assembly 3, and the output rod 302 of the worm gear lifting assembly 3 is located on the inner side of the bottom tube 2.

[0049] The length of the support rod 401 is greater than the total length of the output shaft of the hydraulic cylinder 8 in the retracted state.

[0050] A sleeve 5 is provided on the outside of the support tube, and the inner diameter of the sleeve 5 matches the diameter of the support rod 401. A compression spring 7 is provided between the sleeve 5 and the lifting plate 4. The support tube plays a guiding role in the up and down movement of the sleeve 5, making the movement of the sleeve 5 more stable.

[0051] A baffle 501 is fixed to the upper end of the sleeve 5, and the diameter of the baffle 501 is larger than the outer diameter of the sleeve 5; the compression spring 7 is located between the baffle 501 and the lifting plate 4, and the compression spring 7 is located on the outside of the sleeve 5, and a damper is provided between the compression spring 7 and the lifting plate 4.

[0052] A column 502 is fixedly provided at one end of the baffle 501 away from the lifting plate 4 . The end surface of the column 502 away from the lifting plate 4 is a spherical surface, which can reduce the friction between the column 502 and the frame of the roller 1 .

[0053] A positioning ring 603 corresponding to the column 502 is fixed on the lower end surface of the connecting plate 6. The inner diameter of the positioning ring 603 is larger than the diameter of the column 502. The positioning ring 603 limits the column 502 and limits the horizontal movement range of the roller 1 frame to prevent the roller 1 from moving too far horizontally during the lifting process and breaking away from the support of the sleeve 5.

[0054] There are four support rods 401, and the four support rods 401 are arranged circumferentially along the hydraulic cylinder 8. The four support rods 401 play a role in uniform force distribution. Even when the roller 1 is lifting and lowering, the roller 1 is tilted, and the elastic deformation space of the compression spring 7 can still ensure that multiple support rods 401 can play a supporting role.

[0055] In other embodiments, the compression spring 7 is not provided on the outside of the support rod 401, and the support rod 401 corresponds to the positioning ring 603. When the roller 1 is lifted or lowered, the output shaft of the hydraulic cylinder 8 is shortened, and the lower end surface of the connecting plate 6 contacts the support rod 401.

[0056] Working process:

[0057] The roller table 1 lifting device is installed at the four corners of the roller table 1. When the roller table 1 is lifted or lowered, the output shaft of the hydraulic cylinder 8 is shortened, and the lower end surface of the connecting plate 6 contacts the column 502. The column 502 is located on the inner side of the positioning ring 603, and the compression spring 7 is compressed. Then the worm gear lifting assembly 3 is actuated to drive the roller table 1 to move in the height direction. Since the roller table 1 and the roller table 1 lifting device are not rigidly connected, even if the lifting speeds of multiple worm gear lifting assemblies 3 are different, it will not affect the stability of the connection. After the roller table 1 reaches the specified position, the output shaft of the hydraulic cylinder 8 is extended, and the support head 801 is inserted into the bottom of the support groove 602 under the guidance of the chamfered structure of the support groove 602, which not only supports the roller table 1 frame, but also can reset the roller table 1 frame in the horizontal direction. Compared with the traditional method of one motor driving multiple worm gear lifting assemblies 3 to move through the synchronous shaft, this solution requires less installation space, and the installation process is simple and easy to maintain later.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roller lifting device, characterized in that: include: A worm gear lifting assembly (3), wherein an input rod (301) of the worm gear lifting assembly (3) is provided with a driving assembly; A lifting plate (4), wherein the lifting plate (4) is fixedly connected to an output rod (302) of the worm gear lifting assembly (3); A hydraulic cylinder (8), the housing of which is fixedly connected to the lifting plate (4); A support rod (401), wherein the support rod (401) is fixedly mounted on the upper end surface of the lifting plate (4); A connecting plate (6) is connected to the roller table (1), a supporting column (601) is fixedly provided at the lower end of the connecting plate (6), and a supporting groove (602) corresponding to the output shaft of the hydraulic cylinder (8) is formed on the supporting column (601).

2. A roller table lifting device according to claim 1, characterized in that: A support head (801) is fixedly arranged on the output shaft of the hydraulic cylinder (8), the diameter of the support groove (602) matches the diameter of the support head (801), and the support head (801) is installed on the inner side of the support groove (602).

3. A roller table lifting device according to claim 2, characterized in that: The edge of the support groove (602) adjacent to the hydraulic cylinder (8) adopts a chamfered structure, and the outer edge of the support head (801) adjacent to one end of the support column (601) adopts a chamfered structure.

4. A roller table lifting device according to claim 1, characterized in that: The lower end of the worm gear lifting assembly (3) is provided with a bottom tube (2), the lower end of the bottom tube (2) is fixedly provided with a bottom plate (201), the upper end of the bottom plate (201) is fixedly connected to the side wall of the bottom tube (2) via a reinforcing rib (202), the upper end of the bottom tube (2) is fixedly connected to the housing of the worm gear lifting assembly (3), and the output rod (302) of the worm gear lifting assembly (3) is located on the inner side of the bottom tube (2).

5. The roller table lifting device according to claim 1, characterized in that: The length of the support rod (401) is greater than the total length of the output shaft of the hydraulic cylinder (8) in a retracted state.

6. A roller table lifting device according to claim 1, characterized in that: A sleeve (5) is provided on the outer side of the support tube, and the inner diameter of the sleeve (5) matches the diameter of the support rod (401); A compression spring (7) is provided between the sleeve (5) and the lifting plate (4).

7. A roller table lifting device according to claim 6, characterized in that: A baffle (501) is fixedly provided at the upper end of the sleeve (5), and the diameter of the baffle (501) is larger than the outer diameter of the sleeve (5); The compression spring (7) is located between the baffle plate (501) and the lifting plate (4), and the compression spring (7) is located outside the sleeve (5).

8. A roller table lifting device according to claim 7, characterized in that: A column (502) is fixedly provided at one end of the baffle (501) away from the lifting plate (4), and the end surface of the column (502) away from the lifting plate (4) is a spherical surface.

9. A roller table lifting device according to claim 8, characterized in that: A positioning ring (603) corresponding to the column (502) is fixedly provided on the lower end surface of the connecting plate (6).

10. The roller table lifting device according to claim 1, characterized in that: There are multiple support rods (401), and the multiple support rods (401) are arranged in a circumferential direction along the hydraulic cylinder (8).

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