Heavy adjustable bearing device
Through the combined structure of hydraulic cylinder and positioning support, flexible adjustment of the height of the load bearing device and high heavy load requirements of heavy workpieces are achieved, solving the problems of labor and cost of traditional load bearing mechanisms, and improving operating efficiency.
Patent Information
- Application Number
- CN202421829715.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing load bearing mechanism requires multiple assistance when adjusting the height, and it is difficult to meet the high heavy load requirements of heavy workpieces, resulting in laborious and high cost.
A heavy-duty adjustable load bearing device is designed, adopting a combined structure of hydraulic cylinder and positioning support pillars, which drives the support platform to lift and lower through the hydraulic cylinder, and achieves precise height adjustment through the coordination of positioning holes and positioning pins.
It achieves a high degree of flexible adjustment, improves load-bearing capacity, reduces labor costs and material costs, and improves operating efficiency.
Smart Images
Figure CN222932729U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of load-bearing facilities, and particularly relates to a heavy-duty adjustable bearing device. Background Art
[0002] In the modern heavy industry field, when manufacturing the same part in a factory, if the part assembly process is different, a bearing mechanism with different heights is correspondingly required to place the part to meet the requirements of different working station heights for part assembly. Refer to Figure 1 , although the traditional bearing mechanism has a certain height adjustability, when adjusting the height, multiple people are needed to assist in manually lifting the support platform to the specified height and then fastening and fixing it to the support column by means of bolts and nuts. When the workpiece is heavy, this support mechanism that solely relies on manpower to adjust the height is laborious to operate; at the same time, with the continuous optimization of the current part manufacturing process and the development of large and heavy workpieces, it has higher heavy-load requirements for the bearing mechanism, and it is also difficult to adjust the height of the bearing mechanism by manually lifting; moreover, manufacturing support structures with different dedicated heights for different process equipment has poor universality and will generate a large amount of labor costs and material costs. Based on this, it is necessary to design a bearing mechanism that is suitable for use in heavy-duty equipment and can arbitrarily adjust the height of the support mechanism according to different process conditions. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a heavy-duty adjustable bearing device that solves the problem that the height of the bearing mechanism of heavy-duty equipment cannot be adjusted.
[0004] To this end, the technical solution of the utility model is as follows:
[0005] A heavy-duty adjustable bearing device, comprising:
[0006] The bottom support mechanism includes a bottom support platform and multiple hollow support columns. The bottom support platform is horizontally fixed at the tops of the multiple hollow support columns arranged at intervals in a line.
[0007] The middle-layer support mechanism includes a middle-layer support platform, two first hydraulic cylinders, and multiple first positioning struts; the middle-layer support platform is horizontally fixed at the tops of multiple first positioning struts arranged at intervals in a straight line, and the bottoms of the multiple first positioning struts are respectively inserted into the inner cavities of the hollow support columns through multiple first assembly holes opened on the tabletop of the bottom-layer support platform; multiple first positioning holes respectively communicating with the first assembly holes are opened on the side wall of the bottom-layer support platform, and each first positioning strut is provided with several second positioning holes at intervals from top to bottom, so that it is fixed on the bottom-layer support platform by inserting positioning pins into the aligned second positioning holes and first positioning holes; the two first hydraulic cylinders are symmetrically arranged below the bottom-layer support platform with their movable push rods facing vertically upward, and the two movable push rods pass through the bottom-layer support platform and are fixed on the bottom surface of the middle-layer support platform;
[0008] The upper-layer support mechanism includes an upper-layer support platform, two second hydraulic cylinders, and multiple second positioning struts; the upper-layer support platform is horizontally fixed at the tops of multiple second positioning struts arranged at intervals in a straight line, and the bottoms of the multiple second positioning struts are respectively inserted into multiple second assembly holes opened on the tabletop of the middle-layer support platform; multiple fourth positioning holes respectively communicating with the second assembly holes are opened on the side wall of the middle-layer support platform, and each second positioning strut is provided with multiple third positioning holes at intervals from top to bottom, so that it is fixed on the middle-layer support platform by inserting positioning pins into the aligned third positioning holes and fourth positioning holes; the two second hydraulic cylinders are symmetrically arranged on both sides of the bottom-layer support platform with their movable push rods facing vertically upward, and a supporting bracket supporting the bottom surfaces at both ends of the upper-layer support platform is fixed at the rod ends of the two movable push rods.
[0009] Further, in the length direction of the bottom-layer support platform, the multiple hollow support columns are divided into two parts, and the bottoms of several hollow support columns in each part are vertically fixed on a horizontally arranged fixing plate; two reinforcing rib plates are symmetrically arranged on the outer wall of the bottom end of each hollow support column, and each reinforcing rib plate is respectively fixed on the hollow support column and the corresponding fixing plate.
[0010] Further, the middle-layer support mechanism further includes two limiting plates, which are symmetrically arranged at both ends of the middle-layer support platform; the top sides of the limiting plates are fixed on the end faces of the middle-layer support platform, and vertical first strip-shaped limiting through holes are opened thereon; a limiting pin is vertically fixed on the same-side end face of the bottom-layer support platform, and the limiting pin is inserted into the limiting through hole.
[0011] Further, a vertical second strip-shaped limiting through hole is opened at the central position of the second positioning strut located in the middle position; a third limiting through hole is opened on the side wall of the middle-layer support platform, and a second limiting pin is inserted into the second strip-shaped limiting through hole and the third limiting through hole.
[0012] Further, the cylinders of the two first hydraulic cylinders and the two second hydraulic cylinders are all fixed on the fixing plate.
[0013] Further, the supporting bracket is a U-shaped frame body composed of a first horizontal plate, a first vertical plate, a second horizontal plate, and a second vertical plate that are vertically connected in sequence. The first horizontal plate is fixed to the end face of the movable push rod of the second hydraulic cylinder by bolts, and the top end face of the second vertical plate initially abuts against the bottom surface of the high-level support platform.
[0014] Compared with the prior art, this heavy-duty adjustable bearing device not only has a large bearing capacity, but also has a convenient height adjustment method, and can maintain the stability of the bearing structure at different adjusted heights. While greatly reducing the labor cost and the material cost of replacing the support platform during height adjustment, it effectively improves the operation efficiency and has good market application and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of a traditional bearing device;
[0016] Figure 2 is a front view of the heavy-duty adjustable bearing device of the present invention in the maximum lifting height state;
[0017] Figure 3 is a front view of the heavy-duty adjustable bearing device of the present invention in the minimum lifting height state;
[0018] Figure 4 is a front view of the heavy-duty adjustable bearing device of the present invention in the intermediate lifting height state. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following further describes the present invention in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means any limitation to the present invention.
[0020] See Figures 2 to 4 , this heavy-duty adjustable bearing device is composed of a bottom support mechanism, a middle support mechanism, and a high-level support mechanism arranged in sequence from bottom to top.
[0021] The bottom support mechanism includes a bottom support platform 3 and four hollow support columns 8; among them, the four hollow support columns 8 are arranged at intervals and in a straight line, and the bottom support platform 3 is fixed on the top surfaces of the multiple hollow support columns 8 in a horizontal setting manner; four first assembly holes penetrating from the top surface of the bottom support platform 3 to its bottom surface are provided in the vertical direction, the four first assembly holes are arranged at intervals, and the four first assembly holes respectively correspond to and communicate with the inner cavities of the four hollow support columns 8 one by one, and the aperture of the first assembly hole is the same as the inner diameter of the hollow support column 8; four first positioning holes penetrating from one side wall of the bottom support platform 3 to the other side wall in the width direction are provided, the four first positioning holes are arranged at intervals and communicate with the four first assembly holes, so that the first positioning pins 10 inserted in each first positioning hole are just arranged on the bisector of the corresponding first assembly hole.
[0022] As a preferred technical solution of this embodiment, the bottom ends of the two hollow support columns 8 on each side of the bottom support platform 3 are vertically fixed on a horizontally arranged fixing plate 9, and two reinforcing rib plates are symmetrically arranged on the outer wall of the bottom end of each hollow support column 8, and each reinforcing rib plate is respectively fixed on the outer wall of the hollow support column 8 and the top surface of the fixing plate 9, so that the bottom support mechanism is fixed on the ground at the designated working station through a plurality of anchor bolts arranged on the fixing plate 9.
[0023] The middle layer support mechanism includes a middle layer support platform 2, two first hydraulic cylinders 4, two limit plates 6 and four first positioning columns 11.
[0024] The middle layer support platform 2 is arranged parallel to the upper part of the bottom support platform 3, the two first hydraulic cylinders 4 are symmetrically arranged below the middle part of the bottom support platform 3 with their movable push rods facing vertically upward, and the rod ends of their movable push rods pass through the push rod through holes provided on the bottom support platform 3 and are fixed on the bottom surface of the middle layer support platform 2 to drive the middle layer support platform 2 to lift through the two first hydraulic cylinders 4; the cylinder barrels of the two first hydraulic cylinders 4 are fixed on the fixing plate 9 to facilitate the overall movement of the device.
[0025] Four first positioning struts 11 are respectively and vertically arranged above the four hollow support columns 8 in a one-to-one correspondence. The top end of each first positioning strut 11 is vertically fixed on the bottom surface of the middle support platform 2, and the bottom end is inserted into the inner cavity of the hollow support column 8. A plurality of second positioning holes are arranged at intervals from top to bottom on the side wall of each first positioning strut 11, and the positions of the second positioning holes are adapted to the positions of the first positioning holes formed on the bottom support platform 3. During the process of the four first positioning struts 11 moving up and down relative to the four hollow support columns 8, by aligning the second positioning holes formed at any same height on the four first positioning struts 11 with the first positioning holes and inserting the first positioning pins 10, the lifting positioning of the middle support platform 2 relative to the bottom support platform 3 is realized. At the same time, the pressure exerted by the middle support platform 2 on the movable push rods of the two first hydraulic cylinders 4 is dispersed by the four first positioning struts 11. In the initial state, when the middle support platform 2 descends and is stacked on the bottom support platform 3, the second positioning holes near the top ends of the four first positioning struts 11 are aligned with the first positioning holes, and the connection and fixation of the middle support platform 2 and the bottom support platform 3 are realized by inserting the first positioning pins 10. Preferably, a nut is threadedly connected to the end of each first positioning pin 10 to prevent the first positioning pin 10 from falling off.
[0026] Two limiting plates 6 are symmetrically arranged at both ends of the middle support platform 2. Among them, the top side of one side plate surface of each limiting plate 6 is fixed on the end surface of the middle support platform 2, and a vertical first strip-shaped limiting through hole is formed in the middle of the limiting plate 6. Correspondingly, a first limiting pin is vertically fixed at the center of the same-side end surface of the bottom support platform 3, and the first limiting pin penetrates through the limiting through hole. In the initial state, the middle support platform 2 is stacked on the bottom support platform 3. At this time, the first limiting pin on the end side of the bottom support platform 3 is located above the first strip-shaped limiting through hole. When the middle support platform 2 gradually rises under the drive of the two first hydraulic cylinders 4, the first limiting pin on the end side of the bottom support platform 3 slides downward along the first strip-shaped limiting through hole until the first limiting pin on the end side of the bottom support platform 3 is located at the bottom of the first strip-shaped limiting through hole when the middle support platform 2 rises to the highest position. The arrangement of the two limiting plates 6 can ensure that the middle support platform 2 stops at the high safety limit position when rising, and ensure the structural stability of the device during the lifting and adjustment process.
[0027] The high-level support mechanism includes a high-level support platform 1, two second hydraulic cylinders 5 and three second positioning struts 13.
[0028] The high-level support platform 1 is arranged parallel above the middle-level support platform 2. Two second hydraulic cylinders 5 are symmetrically arranged on both sides of the low-level support platform 3 with their movable push rods facing vertically upward. The cylinder barrels of the two second hydraulic cylinders 5 are fixed on the lower fixing plate 9 to facilitate the overall movement of the device. At the rod ends of the movable push rods of the two second hydraulic cylinders 5, a bearing bracket 16 is fixed respectively. The bearing brackets 16 are symmetrically arranged below both ends of the high-level support platform 1 to lift the high-level support platform 1 to a specified height by abutting against the bottom surface of the high-level support platform 1. Among them, the bearing bracket 16 is a Z-shaped frame body composed of a first horizontal plate, a first vertical plate, a second horizontal plate, and a second vertical plate connected vertically in sequence. The first horizontal plate is fixed on the end face of the rod end of the movable push rod of the second hydraulic cylinder 5 through bolts, and the top end face of the second vertical plate initially abuts against the bottom surface of the high-level support platform 1.
[0029] Three second positioning columns 13 are evenly arranged below the high-level support platform 1. They are arranged vertically, and their tops are fixed on the bottom surface of the high-level support platform 1. Correspondingly, three second assembly holes corresponding to the second positioning columns 13 are opened on the middle-level support platform 2, and the three second positioning columns 13 are respectively inserted into the three second assembly holes. Among them, the three second assembly holes opened on the middle-level support platform 2 and the four first assembly holes opened on the low-level support platform 3 are arranged alternately, so that the middle-level support platform 2 and the high-level support platform 1 can be lifted independently. On each second positioning column 13, a plurality of third positioning hole groups are spaced apart from top to bottom. Each third positioning hole group is composed of two third positioning holes arranged at intervals in the horizontal direction.
[0030] Three fourth positioning hole groups are opened on one side wall of the middle-level support platform 2 along the width direction and penetrate through to the other side wall. The three fourth positioning hole groups are respectively communicated with the three second assembly holes. Each fourth positioning hole group is composed of two fourth positioning holes arranged at intervals in the horizontal direction. When the three second positioning columns 13 move up and down relative to the three second assembly holes, by aligning the two third positioning holes of the third positioning hole group opened at any same height on the three second positioning columns 13 with the two fourth positioning holes of the fourth positioning hole group and inserting the second positioning pin 7, the lifting positioning of the high-level support platform 1 relative to the middle-level support platform 2 is realized. In the initial state, when the high-level support platform 1 descends and is stacked on the middle-level support platform 2, the third positioning holes near the top of the three second positioning columns 13 are aligned with the fourth positioning holes, and the connection and fixation of the middle-level support platform 2 and the high-level support platform 1 are realized by inserting the second positioning pin 7.
[0031] A vertical second strip-shaped limit through-hole is provided at the center of the second positioning strut 13 located at the middle position. Correspondingly, a third limit through-hole penetrating through the side wall on one side of the middle-layer support platform 2 to the side wall on the other side is provided along the width direction. A second limit pin 15 is inserted into the second strip-shaped limit through-hole and the third limit through-hole. In the initial state, the high-layer support platform 1 is stacked on the middle-layer support platform 2. At this time, the second limit pin 15 provided on the middle-layer support platform 2 is located above the second strip-shaped limit through-hole. When the high-layer support platform 1 is gradually lifted under the drive of two second hydraulic cylinders 5, the second limit pin 15 slides downward along the second strip-shaped limit through-hole until the high-layer support platform 1 is lifted to the position where the second limit pin is located at the bottom of the second strip-shaped limit through-hole. At this time, the high-layer support platform 1 is lifted to the highest position. The mutual cooperation between the second strip-shaped limit through-hole and the second limit pin can ensure that the high-layer support platform 1 stops at the high-position safety limit position when lifted, ensuring the structural stability of the device during the lifting and adjustment process.
[0032] The specific working principle of this heavy-duty adjustable bearing device is as follows: As Figure 3 shown is the initial state of this heavy-duty adjustable bearing device, that is, the lowest position state. In this state, the bottom-layer support platform 3, the middle-layer support platform 2, and the high-layer support platform 1 are stacked in sequence from bottom to top. When it is necessary to increase the height of the device, all the second positioning pins 7 on the middle-layer support platform 2 are removed. At the same time, two second hydraulic cylinders 5 are started. After the high-layer support platform 1 is lifted to an appropriate height position, all the second positioning pins 7 are inserted into the corresponding positioning holes on the middle-layer support platform 2 and the second positioning strut 13 to realize the connection and fixation of the middle-layer support mechanism and the high-layer support mechanism, as Figure 4 shown; Refer to Figure 2 . When the high-layer support platform 1 has not reached the specified height after being lifted to the highest position, all the first positioning pins 10 on the bottom-layer support platform 3 are removed. At the same time, two first hydraulic cylinders 4 are started. After the middle-layer support platform 2 is lifted to an appropriate height position, all the first positioning pins 10 are inserted into the corresponding positioning holes on the bottom-layer support platform 3 and the first positioning strut 11 to realize the connection and fixation of the bottom-layer support mechanism and the middle-layer support mechanism.
[0033] In practical applications, this heavy-duty adjustable bearing device is used in pairs. By being symmetrically arranged under the heavy workpiece, it realizes the stable support of the heavy workpiece and the stable adjustment at any use height.
Claims
1. A heavy-duty adjustable load-bearing device, characterized in that: include: The bottom support mechanism comprises a bottom support platform (3) and a plurality of hollow support columns (8), wherein the bottom support platform (3) is horizontally fixed on the tops of the plurality of hollow support columns (8) arranged in a straight line at intervals; The middle-layer support mechanism comprises a middle-layer support platform (2), two first hydraulic cylinders (4) and a plurality of first positioning pillars (11); the middle-layer support platform (2) is horizontally fixed on the top ends of a plurality of first positioning pillars (11) arranged in a line, and the bottom ends of the plurality of first positioning pillars (11) are respectively inserted into the inner cavity of each hollow support column (8) through a plurality of first assembly holes provided on the surface of the bottom-layer support platform (3); a plurality of first positioning holes respectively connected to the first assembly holes are provided on the side wall of the bottom-layer support platform (3); each first positioning pillar (11) is provided with a plurality of second positioning holes spaced from top to bottom, so that it is fixed on the bottom-layer support platform (3) by inserting positioning pins into the aligned second positioning holes and the first positioning holes; the two first hydraulic cylinders (4) are symmetrically arranged below the bottom-layer support platform (3) with their movable push rods vertically facing upward, and the two movable push rods pass through the bottom-layer support platform (3) and are fixed on the bottom surface of the middle-layer support platform (2); The high-rise support mechanism comprises a high-rise support platform (1), two second hydraulic cylinders (5) and a plurality of second positioning pillars (13); the high-rise support platform (1) is horizontally fixed on the top ends of a plurality of second positioning pillars (13) arranged in a line at intervals, and the bottom ends of the plurality of second positioning pillars (13) are respectively inserted into a plurality of second assembly holes provided on the surface of the middle-rise support platform (2); a plurality of fourth positioning holes respectively connected to the second assembly holes are provided on the side wall of the middle-rise support platform (2), and each second positioning pillar (13) is provided with a plurality of third positioning holes spaced from top to bottom, so that the second positioning pillar (13) is fixed to the middle-rise support platform (2) by inserting positioning pins into the third positioning holes and the fourth positioning holes at opposite positions; the two second hydraulic cylinders (5) are symmetrically arranged on both sides of the bottom-rise support platform (3) with their movable push rods vertically facing upward, and the rod ends of the two movable push rods are fixed with support brackets (16) supported on the bottom surfaces of the two ends of the high-rise support platform (1).
2. The heavy-duty adjustable load-bearing device according to claim 1, characterized in that: In the length direction of the bottom support platform (3), the plurality of hollow support columns (8) are divided into two parts, and the bottom ends of the plurality of hollow support columns (8) in each part are vertically fixed on a horizontally arranged fixing plate (9); two reinforcing ribs are symmetrically arranged on the outer wall of the bottom end of each hollow support column (8), and each reinforcing rib is respectively fixed on the hollow support column (8) and the corresponding fixing plate (9).
3. The heavy-duty adjustable load-bearing device according to claim 1, characterized in that: The middle-layer support mechanism also includes two limit plates (6), which are symmetrically arranged at the two ends of the middle-layer support platform (2); the top side of the limit plate (6) is fixed to the end face of the middle-layer support platform (2), and a vertical first strip-shaped limit through hole is opened on it; a limit pin is vertically fixed on the same side end face of the bottom-layer support platform (3), and the limit pin is inserted into the limit through hole.
4. The heavy-duty adjustable load-bearing device according to claim 1, characterized in that: A second vertical strip-shaped limit through hole is provided at the center of the second positioning pillar (13) located in the middle position; a third limit through hole is provided on the side wall of the middle support platform (2), and a second limit pin (15) is inserted into the second strip-shaped limit through hole and the third limit through hole.
5. The heavy-duty adjustable load-bearing device according to claim 1, characterized in that: The cylinder barrels of the two first hydraulic cylinders (4) and the two second hydraulic cylinders (5) are all fixed on the fixing plate (9).
6. The heavy-duty adjustable load-bearing device according to claim 1, characterized in that: The support frame (16) is an U-shaped frame body composed of a first horizontal plate, a first vertical plate, a second horizontal plate and a second vertical plate which are vertically connected in sequence. The first horizontal plate is fixed to the end face of the movable push rod of the second hydraulic cylinder (5) by bolts, and the top end face of the second vertical plate initially abuts against the bottom face of the high-rise support platform.