Stepless lifting platform device

Abstract

The utility model relates to a stepless lifting platform device, and belongs to the technical field of lifting auxiliary mechanical equipment. Comprising a support, a base, a lifting device and a material supporting frame. The base is arranged at the top of the support, a lifting device is installed on the base, a material supporting frame is installed at the top of the lifting device, the material supporting frame is used for supporting a workpiece, and the lifting device drives the material supporting frame to move up and down; the material supporting frame is moved to the position below a workpiece through the lifting device, the material supporting frame and the workpiece are located on the same axis, meanwhile, the material supporting frame bears the weight of the workpiece, the workpiece can be easily disassembled, and the safety of workers is guaranteed while the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a stepless lifting platform device, belonging to the technical field of lifting auxiliary mechanical equipment. Background Art

[0002] Most of the existing extrusion molding equipment has an extrusion shaft workpiece, which will be severely worn after long-term use, affecting the quality of the extruded products. Therefore, it needs to be removed for repair or replacement. Since this workpiece is relatively heavy and is precisely matched with the shaft cylinder, it is very difficult to pull it out by manpower without auxiliary equipment. Therefore, a device is needed that can be on the same axis as the workpiece and can also bear the weight of the workpiece, so that workers can quickly install or disassemble it. Utility Model Content

[0003] The utility model aims at solving the problems existing in the prior art and provides a stepless lifting platform device.

[0004] The purpose of the utility model is achieved through the following technical scheme: a stepless lifting platform device, including a bracket, a base, a lifting device, and a supporting rack; the base is arranged on the top of the bracket, the lifting device is installed on the base, the supporting rack is installed on the top of the lifting device, the cross-section of the supporting rack is a "V"-shaped structure, the supporting rack is used to support the workpiece, and the lifting device drives the supporting rack to move up and down.

[0005] The lifting device includes a shell, a screw rod, a gear, and a locking screw; the screw rod is arranged in the shell, the bottom of the screw rod passes through the base, the screw rod can move up and down along the height direction of the shell, one side of the screw rod is meshed with a gear, the gear is rotatably installed in the shell, an adjusting rod is provided in the middle of the gear, both ends of the adjusting rod are rotatably installed on the inner wall of the shell, a threaded hole is provided on one side of the shell, and the locking screw is provided in the threaded hole.

[0006] The lifting device includes a shell, a worm wheel, a worm, and a locking screw. The worm wheel and worm are arranged in the shell, the bottom of the worm passes through the base, and the worm can move up and down along the height direction of the shell. The worm and the worm wheel are meshed with each other. A rotating shaft is provided in the worm wheel, and one end of the rotating shaft is connected to the motor; a threaded hole is provided on one side of the shell, and the locking screw is arranged in the threaded hole.

[0007] One end of the locking screw faces the screw rod, or the outer side wall of the locking screw is in close contact with the outer side wall of the screw rod, and a fixing hole is provided inside the housing on the side facing the locking screw.

[0008] The lifting device is a hydraulic cylinder, the bottom of the hydraulic cylinder is installed on the base, and the top of the hydraulic cylinder is connected to the supporting frame.

[0009] The support rack includes an outer support and an inner support, the outer support is a cubic structure with openings on the top and both ends, the inner support is arranged inside the outer support, the inner support includes an inner support A and an inner support B, and the inner support A and the inner support B form a structure with a "V"-shaped cross-section.

[0010] Soft pads are provided on opposite sides of the inner bracket A and the inner bracket B to protect the workpiece and increase the friction between the workpiece and the bracket to prevent it from falling off the bracket.

[0011] Handrails are arranged on both sides of the bracket.

[0012] The bottom of the bracket is provided with universal wheels.

[0013] A supporting frame is installed on the top of the lifting device; a rotating shaft is provided on the top of the lifting device, a through hole is provided at the bottom of the supporting frame, a bearing is installed in the through hole, and the rotating shaft is arranged in the bearing.

[0014] The utility model has the following beneficial effects: the utility model uses a lifting device and a supporting frame to be arranged, and the supporting frame is moved to the bottom of the workpiece through the lifting device, so that it is on the same axis as the workpiece and bears the weight of the workpiece at the same time, so that the workpiece can be easily removed by 1-2 people, and the key is that there is no safety risk in the whole process of disassembly, thereby improving efficiency while also ensuring the safety of employees; in addition, the utility model has a simple structure, is easy to operate, and can be flexibly adjusted up and down, and the supporting frame can rotate 360°, which is convenient for adjustment to be on the same axis as the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of Example 2;

[0016] Figure 2 This is a cross-sectional view of Example 2.

[0017] In the figure: 1. bracket; 2. base; 3. lifting device; 3-1. outer shell; 3-2. screw rod; 3-3. adjusting rod; 3-4. locking screw; 4. support rack; 4-1 outer bracket; 4-2. inner bracket; 4-2-1. inner bracket A; 4-2-2. inner bracket B; 5. cushion; 6. armrest; 7. universal wheel. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings and the accompanying description.

[0019] Example 1

[0020] A stepless lifting platform device, including a bracket 1, a base 2, a lifting device 3, and a support frame 4; the base 2 is a steel plate base, the base 2 is arranged on the top of the bracket 1, and the lifting device 3 is installed in the base 2. The lifting device 3 includes a shell 3-1, a screw rod 3-2, a gear, and a locking screw 3-4. The shell 3-1 is installed in the base 2, and the screw rod 3-2 is arranged in the shell 3-1. The bottom of the screw rod 3-2 passes through the base 2. One side of the screw rod 3-2 is meshed with a gear, and the gear is rotatably installed in the shell 3-1. An adjusting rod 3-3 is arranged in the middle of the gear. Both ends of the adjusting rod 3-3 are rotatably installed on the inner side wall of the shell 3-1. The shell 3 -1 is provided with a threaded hole on one side, and a locking screw 3-4 is arranged in the threaded hole. The locking screw 3-4 is opposite to the screw rod 3-2. When the screw rod 3-2 moves up and down to make the support frame 4 contact the workpiece, the locking screw 3-4 is turned to make one end of the locking screw 3-4 abut against the side wall of the screw rod 3-2. If necessary, two groups of locking screws or four groups of locking screws can be relatively arranged; the support frame 4 is installed on the top of the screw rod 3-2, and the support frame 4 includes an outer bracket 4-1 and an inner bracket 4-2. The outer bracket 4-1 is a cubic structure with openings on the top and both ends. The inner bracket 4-2 is arranged in the outer bracket 4-1. The inner bracket 4-2 includes an inner bracket A 4-2-1 and inner bracket B 4-2-2, the inner bracket A 4-2-1 and the inner bracket B 4-2-2 form a structure with a "V"-shaped cross-section, and the workpiece is located in the "V"-shaped structure; the inner bracket A4-2-1 and the inner bracket B4-2-2 are provided with cushions 5 on the opposite sides; handrails 6 are provided on both sides of the bracket 1, and a universal wheel 7 is provided at the bottom of the bracket 1.

[0021] Example 2

[0022] A stepless lifting platform device, including a bracket 1, a base 2, a lifting device 3, and a support frame 4; the base 2 is a steel plate base, the base 2 is arranged on the top of the bracket 1, and the lifting device 3 is installed in the base 2. The lifting device 3 includes a shell 3-1, a screw rod 3-2, a gear, and a locking screw 3-4. The shell 3-1 is installed in the base 2, the screw rod 3-2 is arranged in the shell 3-1, the bottom of the screw rod 3-2 passes through the base 2, one side of the screw rod 3-2 is meshed with a gear, and the gear is rotatably installed in the shell 3-1, and an adjusting rod 3-3 is arranged in the middle of the gear, and both ends of the adjusting rod 3-3 are rotatably installed in the shell 3-1. The outer wall of the housing 3-1 is provided with a threaded hole on one side, and a locking screw 3-4 is arranged in the threaded hole. The outer wall of the locking screw 3-4 is in close contact with the outer wall of the screw rod 3-2. A fixing hole is arranged inside the housing 3-1 on the side opposite to the locking screw 3-4. A rotating shaft is arranged on the top of the screw rod 3-2, and a through hole is arranged on the bottom of the bracket 4. A bearing is installed in the through hole, and the rotating shaft is arranged in the bearing. The bracket 4 has an outer bracket 4-1 and an inner bracket 4-2. The outer bracket 4-1 is a cubic structure with openings on the top and both ends. The inner bracket 4-2 is arranged in the outer bracket 4-1. The inner bracket 4-2 includes an inner bracket A The inner bracket A 4-2-1 and the inner bracket B 4-2-2 form a structure with a "V"-shaped cross-section, and the workpiece is located in the "V"-shaped structure; the inner bracket A 4-2-1 and the inner bracket B 4-2-2 are provided with cushions 5 on opposite sides; armrests 6 are provided on both sides of the bracket 1, and a universal wheel 7 is provided at the bottom of the bracket 1.

[0023] When the workpiece on the equipment, i.e. the extrusion shaft, is worn and needs to be replaced, the bracket 1 is moved to the bottom of the workpiece through the universal wheel 7, and the adjusting rod 3-3 is rotated to drive the gear to rotate, and the gear is engaged with the screw rod 3-2, thereby driving the screw rod 3-2 to move up and down in the housing 3-1; by controlling the up and down movement of the screw rod 3-2 and rotating the support frame 4, the support frame 4 is made to contact with the workpiece, thereby supporting the workpiece, and then the locking screw 3-4 is turned until one end of the locking screw 3-4 is in the fixed hole in the machine, and the outer wall of the locking screw 3-4 is tightly fitted with the outer wall of the screw rod 3-2 to prevent the position of the screw rod from being fixed.

[0024] Example 3

[0025] A stepless lifting platform device, including a bracket 1, a base 2, a lifting device 3, and a bracket 4; the base 2 is a steel plate base, which is arranged on the top of the bracket 1, and a lifting device 3 is installed in the base 2. The lifting device includes a shell 3-1, a worm wheel, a worm, and a locking screw 3-4. The worm wheel and the worm are arranged in the shell 3-1, and the bottom of the worm passes through the base 2. The worm can move up and down along the height direction of the shell 3-1. The worm and the worm wheel are meshed with each other. A rotating shaft is arranged in the worm wheel, and one end of the rotating shaft is connected to the motor; a threaded hole is arranged on one side of the shell 3-1, and the locking screw 3-4 is arranged at In the threaded hole, a threaded hole is provided on one side of the shell 3-1, and a locking screw 3-4 is arranged in the threaded hole. The outer wall of the locking screw 3-4 is in close contact with the outer wall of the screw rod 3-2, and a fixing hole is provided inside the shell 3-1 on the side opposite to the locking screw 3-4; a rotating shaft is provided on the top of the screw rod 3-2, and a through hole is provided at the bottom of the bracket 4, a bearing is installed in the through hole, and the rotating shaft is arranged in the bearing, the bracket 4 has an outer bracket 4-1 and an inner bracket 4-2, the outer bracket 4-1 is a cubic structure with openings on the top and both ends, and the inner bracket 4-2 is arranged in the outer bracket 4-1, and the inner bracket 4-2 includes an inner bracket A The inner bracket A 4-2-1 and the inner bracket B 4-2-2 form a structure with a "V"-shaped cross-section, and the workpiece is located in the "V"-shaped structure; the inner bracket A 4-2-1 and the inner bracket B 4-2-2 are provided with cushions 5 on opposite sides; armrests 6 are provided on both sides of the bracket 1, and a universal wheel 7 is provided at the bottom of the bracket 1.

[0026] Example 4

[0027] A stepless lifting platform device comprises a bracket 1, a base 2, a lifting device 3 and a support frame 4; the base 2 is a steel plate base, which is arranged on the top of the bracket 1, and the lifting device 3 is installed in the base 2. The lifting device 3 is a hydraulic cylinder, and the bottom of the hydraulic cylinder is installed on the base 2, and the top of the hydraulic cylinder is connected to the support frame 4; the top of the screw rod 3-2 is provided with a rotating shaft, and the bottom of the support frame 4 is provided with a through hole, and a bearing is installed in the through hole, and the rotating shaft is arranged in the bearing, the support frame 4 has an outer bracket 4-1 and an inner bracket 4-2, and the outer bracket 4-1 is a cubic structure with openings on the top and both ends, and the inner bracket 4-2 is arranged in the outer bracket 4-1, and the inner bracket 4-2 includes an inner bracket A 4-2-1 and an inner bracket B 4-2-2, and the inner bracket A4-2-1 and the inner bracket B4-2-2 form a structure with a "V"-shaped cross-section, and the workpiece is located in the "V"-shaped structure; the inner bracket A Soft cushions 5 are provided on opposite sides of the bracket 4-2-1 and the inner bracket B 4-2-2; armrests 6 are provided on both sides of the bracket 1, and universal wheels 7 are provided at the bottom of the bracket 1.

[0028] The above description is only a preferred embodiment of the present invention. Any modification, equivalent replacement, improvement, etc. made to the above embodiment based on the technical essence of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stepless lifting platform device, characterized in that: The invention comprises a support (1), a base (2), a lifting device (3), and a support frame (4); the base (2) is arranged on the top of the support (1), the lifting device (3) is installed on the base (2), the support frame (4) is installed on the top of the lifting device (3), the cross section of the support frame (4) is a "V"-shaped structure, the support frame (4) is used to support the workpiece, and the lifting device (3) drives the support frame (4) to move up and down.

2. The stepless lifting platform device according to claim 1, characterized in that: The lifting device (3) comprises a shell (3-1), a screw rod (3-2), a gear, and a locking screw (3-4); the screw rod (3-2) is arranged in the shell (3-1), the bottom of the screw rod (3-2) passes through the base (2), the screw rod (3-2) can move up and down along the height direction of the shell (3-1), one side of the screw rod (3-2) is meshed with a gear, the gear is rotatably installed in the shell (3-1), an adjustment rod (3-3) is arranged in the middle of the gear, both ends of the adjustment rod (3-3) are rotatably installed on the inner side wall of the shell (3-1), one side of the shell (3-1) is provided with a threaded hole, and the locking screw (3-4) is arranged in the threaded hole.

3. The stepless lifting platform device according to claim 1, characterized in that: The lifting device comprises a housing (3-1), a worm wheel, a worm, and a locking screw (3-4); the worm wheel and the worm are arranged in the housing (3-1); the bottom of the worm passes through the base (2); the worm can move up and down along the height direction of the housing (3-1); the worm and the worm wheel are meshed with each other; a rotating shaft is arranged in the worm wheel, and one end of the rotating shaft is connected to a motor; a threaded hole is arranged on one side of the housing (3-1); the locking screw (3-4) is arranged in the threaded hole.

4. The stepless lifting platform device according to claim 2 or 3, characterized in that: One end of the locking screw (3-4) faces the screw rod (3-2), or the outer wall of the locking screw (3-4) is in close contact with the outer wall of the screw rod (3-2), and a fixing hole is provided inside the housing (3-1) on the side facing the locking screw (3-4).

5. The stepless lifting platform device according to claim 1, characterized in that: The lifting device (3) is a hydraulic cylinder, the bottom of which is mounted on the base (2), and the top of which is connected to a support frame (4).

6. The stepless lifting platform device according to claim 1, characterized in that: The support frame (4) comprises an outer support frame (4-1) and an inner support frame (4-2); the outer support frame (4-1) is a cubic structure with openings at the top and both ends; the inner support frame (4-2) is arranged inside the outer support frame (4-1); the inner support frame (4-2) comprises an inner support frame A (4-2-1) and an inner support frame B (4-2-2); the inner support frame A (4-2-1) and the inner support frame B (4-2-2) form a structure with a "V"-shaped cross section.

7. The stepless lifting platform device according to claim 6, characterized in that: Soft pads (5) are provided on opposite sides of the inner bracket A (4-2-1) and the inner bracket B (4-2-2).

8. The stepless lifting platform device according to claim 1, characterized in that: Handrails (6) are provided on both sides of the bracket (1).

9. The stepless lifting platform device according to claim 1, characterized in that: The bottom of the bracket (1) is provided with a universal wheel (7).

10. The stepless lifting platform device according to claim 1, characterized in that: A support frame (4) is installed on the top of the lifting device (3); a rotating shaft is provided on the top of the lifting device (3), and a through hole is provided on the bottom of the support frame (4), a bearing is installed in the through hole, and the rotating shaft is arranged in the bearing.

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