Synchronous lifting mechanism

Abstract

The utility model discloses a synchronous lifting mechanism, which relates to the technical field of synchronous lifting, and comprises a working table, a supporting plate arranged at the top of the working table, a lifting component arranged between the supporting plate and the working table, and a limiting component arranged between the supporting plate and the working table, the limiting assembly comprises a fixing shell installed on the top of the workbench, a supporting column movably arranged in the fixing shell, insection arranged on the side face of the supporting column and a locking unit arranged on the side portion of the insection. The locking unit comprises a rotating rod movably arranged on the side wall of the fixing shell, a first bevel gear installed at one end of the rotating rod, a second bevel gear meshed with the bottom of the first bevel gear, a lead screw installed at the bottom of the second bevel gear, and a sliding sleeve connected to the peripheral face of the lead screw in a threaded mode. According to the synchronous lifting mechanism, the supporting plate is prevented from deviating in the lifting process through the arranged limiting assembly, and the risk of accidents caused by the use of machined parts of mechanical equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous lifting, in particular to a synchronous lifting mechanism. Background Art

[0002] The synchronous lifting lifting mechanism is often displayed in the working principle of lifting equipment. Lifting equipment is indispensable in the use of mechanical equipment parts. Mechanical equipment parts lifting equipment refers to the equipment used by the mechanical equipment parts use industry to lift mechanical equipment parts. Lifting equipment plays a vital role in the use and maintenance of mechanical equipment parts. When the equipment is used, it is necessary to lift the mechanical equipment parts to meet the use of different heights.

[0003] Publication (Announcement) No.: CN213011778U discloses a synchronous lifting mechanism, which includes a base, a lifting pallet, a lifting mechanism and a driving mechanism. The lifting mechanism adopts two wedge blocks and two pallet columns fixedly connected under the lifting pallet, two vertical slide rails fixedly connected on the base, and the column rollers arranged at the lower ends of the pallet columns slide on the vertical slide rails. The driving mechanism adopts a lifting cylinder fixed on the base to drive the lifting trolley. The lower parts of the two lifting trolleys move on the horizontal slide rails through the bottom rollers, and the upper parts cooperate with the lifting inclined surface of the wedge block through the top rollers; when the lifting cylinder drives the lifting trolley to move on the horizontal slide rail, the top roller moves on the lifting inclined surface of the wedge block, and the column roller slides up and down on the vertical slide rail to complete the lifting and lowering action of the lifting pallet. The mechanism adopts a transverse cylinder to drive two lifting trolleys, and simultaneously completes the lifting and lowering operations, meeting the requirements of complete synchronization.

[0004] Although the above scheme has the advantage of completing the lifting and lowering operations simultaneously, if the lifting cylinder is damaged during lifting, the position of the plate will be offset during the lifting process, increasing the risk of accidents in the use of mechanical equipment processing parts. For this reason, we propose a synchronous lifting mechanism. Utility Model Content

[0005] The main purpose of the utility model is to provide a synchronous lifting mechanism, which solves the problem that when the lifting cylinder is damaged during lifting, the position of the plate will be offset during the lifting process, thereby increasing the risk of accidents in the use of mechanical equipment processing parts.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A synchronous lifting mechanism comprises a workbench, a support plate arranged on the top of the workbench, a lifting assembly arranged between the support plate and the workbench, and further comprises:

[0008] A limiting component, wherein the limiting component is arranged between the supporting plate and the workbench;

[0009] The limiting assembly comprises a fixed shell installed on the top of the workbench, a support column movably arranged inside the fixed shell, a tooth pattern arranged on the side of the support column, and a locking unit arranged on the side of the tooth pattern.

[0010] Preferably, supports are installed at the bottom corners of the workbench.

[0011] Preferably, the top of the support column is fixedly connected to the bottom of the support plate, a roller is installed on the side of the support column, a slide groove is opened on the inner wall of one side of the fixed shell, and the roller is movably arranged inside the slide groove.

[0012] Preferably, there are two groups of the position limiting components, and the two groups of the position limiting components are relatively arranged on the top of the workbench;

[0013] The locking unit includes a rotating rod movably arranged on the side wall of the fixed shell, a first bevel gear installed at one end of the rotating rod, a second bevel gear meshed with the bottom of the first bevel gear, a screw installed at the bottom of the second bevel gear, a sleeve threadedly connected to the outer circumference of the screw, a rack plate installed on the outer surface of the sleeve, and a gear movably arranged at the bottom of the rack plate, wherein the gear meshes with the tooth pattern.

[0014] Preferably, a mounting groove is provided on a side wall of the fixed shell, the screw rod is movably arranged inside the mounting groove, a movable groove is provided on one side wall of the mounting groove, a movable block is movably arranged inside the movable groove, and the movable block is installed on the outer surface of the sliding sleeve.

[0015] Preferably, a clamping assembly is provided on the top of the support plate, and the clamping assembly includes a column installed at the top corner of the support plate, a threaded rod arranged on the inner side of the column, and a pressure plate threadedly connected to the surface of the threaded rod, and one end of the pressure plate extends through the outside of the column.

[0016] Preferably, the top end of the threaded rod extends through and above the column and is welded with a handle.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a lifting cylinder pushes the sliding trolley to slide along the top surface of the workbench through the setting limit assembly, so that the guide wheel acts on the lifting inclined surface of the wedge block, so that the support plate generates an upward force, and at the same time makes the support column move upward along the inside of the fixed shell, so that the support plate completes the lifting action under the action of the roller, and after the support plate completes the lifting, the rotating handle drives the rotating rod to rotate, thereby driving the first bevel gear to rotate, and the first bevel gear and the second bevel gear rotate, thereby driving the screw rod to rotate, so that under the action of the threaded pair, the sliding sleeve moves downward along the length direction of the screw rod, thereby driving the rack plate to move downward and engage with the gear, limiting the gear, and cooperating with the gear to mesh with the tooth pattern, thereby limiting the support column, thereby limiting the height of the support plate, avoiding the displacement of the support plate during the lifting process, and reducing the risk of accidents in the use of mechanical equipment processing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 It is a top view of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0023] Figure 5 For this utility model Figure 4 Enlarged structural diagram at point C in the middle.

[0024] In the figure:

[0025] Workbench; 11. Support;

[0026] Pallet;

[0027] Lifting components;

[0028] Limiting assembly; 41, fixed shell; 42, support column; 43, tooth pattern; 44, locking unit; 441, rotating rod; 442, first bevel gear; 443, second bevel gear; 444, screw rod; 445, sliding sleeve; 446, rack plate; 447, gear; 45, roller;

[0029] Clamping assembly; 51, column; 52, threaded rod; 53, pressure plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] Example: Figure 1-5 As shown, a synchronous lifting mechanism includes a workbench 1, a support plate 2 arranged on the top of the workbench 1, a lifting assembly 3 arranged between the support plate 2 and the workbench 1, and also includes:

[0032] A limit assembly 4, which is arranged between the support plate 2 and the workbench 1;

[0033] The limiting assembly 4 includes a fixed shell 41 installed on the top of the workbench 1 , a support column 42 movably arranged inside the fixed shell 41 , a tooth pattern 43 arranged on the side of the support column 42 , and a locking unit 44 arranged on the side of the tooth pattern 43 .

[0034] Among them, supports 11 are installed at the bottom corners of the workbench 1, and the supports 11 play a supporting role for the workbench 1.

[0035] Among them, the top of the support column 42 is fixedly connected to the bottom of the support plate 2, a roller 45 is installed on the side of the support column 42, and a slide groove is opened on the inner wall of one side of the fixed shell 41. The roller 45 is movably arranged inside the slide groove. Preferably, there are multiple rollers 45, and the multiple rollers 45 are equidistantly distributed on the side of the support column 42.

[0036] There are two groups of limiter components 4, and the two groups of limiter components 4 are relatively arranged on the top of the workbench 1;

[0037] The locking unit 44 includes a rotating rod 441 movably arranged on the side wall of the fixed shell 41, a first bevel gear 442 installed at one end of the rotating rod 441, a second bevel gear 443 meshed with the bottom of the first bevel gear 442, a screw rod 444 installed at the bottom of the second bevel gear 443, a sleeve 445 threadedly connected to the outer circumference of the screw rod 444, a rack plate 446 installed on the outer surface of the sleeve 445, and a gear 447 movably arranged at the bottom of the rack plate 446, the gear 447 is meshed with the tooth pattern 43, and preferably a turning handle is welded at one end of the rotating rod 441.

[0038] The side wall of the fixed shell 41 is provided with an installation groove, the screw rod 444 is movably arranged inside the installation groove, a movable groove is provided on one side wall of the installation groove, a movable block is movably arranged inside the movable groove, and the movable block is installed on the outer surface of the sliding sleeve 445 .

[0039] Among them, a clamping assembly 5 is arranged on the top of the support plate 2, and the clamping assembly 5 includes a column 51 installed at the top corner of the support plate 2, a threaded rod 52 arranged on the inner side of the column 51, and a pressure plate 53 threadedly connected to the surface of the threaded rod 52, and one end of the pressure plate 53 extends through the outer side of the column 51.

[0040] Among them, the top end of the threaded rod 52 extends through and extends to the top of the column 51, and a handle is welded thereon. The threaded rod 52 is rotated by turning the handle, so that the pressure plate 53 moves downward along the length direction of the threaded rod 52 under the action of the thread pair, thereby limiting the material on the top of the pallet 2.

[0041] Preferably, the lifting assembly 3 includes a lifting cylinder, a sliding trolley installed at the end of the lifting cylinder output shaft, and a guide wheel installed on the top of the sliding trolley. A wedge block is installed at the bottom of the support plate 2, and the lifting inclined surface of the wedge block fits with the top surface of the sliding trolley.

[0042] When in use, the lifting cylinder pushes the sliding trolley to slide along the top surface of the workbench 1, so that the guide wheel acts on the lifting inclined surface of the wedge block, so that the support plate 2 generates an upward force, and at the same time makes the support column 42 move upward along the inside of the fixed shell 41, so that the support plate 2 completes the lifting action under the action of the roller 45, and after the support plate 2 completes the lifting, the turning handle drives the turning rod 441 to rotate, thereby driving the first bevel gear 442 to rotate. Due to the rotation of the first bevel gear 442 and the second bevel gear 443, the screw rod 444 is driven to rotate, so that under the action of the threaded pair, the sliding sleeve 445 moves downward along the length direction of the screw rod 444, thereby driving the rack plate 446 to move downward and engage with the gear 447, limiting the gear 447, and cooperating with the gear 447 to mesh with the tooth pattern 43, thereby limiting the support column 42, thereby limiting the height of the support plate 2, avoiding the displacement of the support plate 2 during the lifting process, and reducing the risk of accidents in the use of mechanical equipment processing parts.

Claims

1. A synchronous lifting mechanism, comprising a workbench (1), a support plate (2) arranged on the top of the workbench (1), and a lifting assembly (3) arranged between the support plate (2) and the workbench (1), characterized in that: Also includes: A limit assembly (4), wherein the limit assembly (4) is arranged between the support plate (2) and the workbench (1); The position limiting assembly (4) comprises a fixed shell (41) mounted on the top of the workbench (1), a support column (42) movably arranged inside the fixed shell (41), a tooth pattern (43) arranged on the side of the support column (42), and a locking unit (44) arranged on the side of the tooth pattern (43).

2. A synchronous lifting mechanism according to claim 1, characterized in that: Supports (11) are installed at the bottom corners of the workbench (1).

3. A synchronous lifting mechanism according to claim 2, characterized in that: The top end of the support column (42) is fixedly connected to the bottom end of the support plate (2), a roller (45) is installed on the side of the support column (42), a slide groove is provided on the inner wall of one side of the fixed shell (41), and the roller (45) is movably arranged inside the slide groove.

4. A synchronous lifting mechanism according to claim 3, characterized in that: There are two groups of the position limiting components (4), and the two groups of the position limiting components (4) are arranged on the top of the workbench (1) opposite to each other; The locking unit (44) comprises a rotating rod (441) movably arranged on the side wall of the fixed shell (41), a first bevel gear (442) mounted on one end of the rotating rod (441), a second bevel gear (443) meshed with the bottom of the first bevel gear (442), a screw rod (444) mounted on the bottom of the second bevel gear (443), a sleeve (445) threadedly connected to the outer peripheral surface of the screw rod (444), a rack plate (446) mounted on the outer surface of the sleeve (445), and a gear (447) movably arranged at the bottom of the rack plate (446), wherein the gear (447) meshes with the tooth pattern (43).

5. A synchronous lifting mechanism according to claim 4, characterized in that: A mounting groove is provided on a side wall of the fixed shell (41), the screw rod (444) is movably arranged inside the mounting groove, a movable groove is provided on one side wall of the mounting groove, a movable block is movably arranged inside the movable groove, and the movable block is mounted on the outer surface of the sliding sleeve (445).

6. A synchronous lifting mechanism according to claim 5, characterized in that: A clamping assembly (5) is provided at the top of the support plate (2), the clamping assembly (5) comprising a column (51) installed at a corner of the top of the support plate (2), a threaded rod (52) provided inside the column (51), and a pressing plate (53) threadedly connected to the surface of the threaded rod (52), one end of the pressing plate (53) extending through the column (51) to the outside of the column (51).

7. A synchronous lifting mechanism according to claim 6, characterized in that: The top end of the threaded rod (52) extends through the top of the column (51) and is welded with a handle.

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