CN220886866U - Screw nut lifting machine - Google Patents

Abstract

The utility model discloses a screw nut lifting machine which comprises a machine body, wherein the machine body is composed of at least two assembly parts, the upper inner wall and the lower inner wall of each assembly part are rotationally connected with screws by using thrust ball bearings, screw threads in two adjacent assembly parts are oppositely screwed, the screw threads are connected with nuts, lifting arms are fixedly sleeved outside the nuts and penetrate through the front surface of each assembly part, lifting grooves which are in sliding connection with the lifting arms are formed in the front surface of each assembly part, and driven gears are coaxially and fixedly connected to the upper ends of the screws. The utility model can be provided with the assembly parts of two box-shaped structures and the assembly parts of corresponding number of frame structures, has low requirement on the bearing limit of the screw rods, ensures low overall manufacturing cost, does not need to be provided with screw nut lifting machines with various different specifications, further reduces equipment cost, and ensures high stability by synchronously driving a plurality of assembled screw rods to lift vehicles.

Description

Screw nut lifting machine

Technical Field

The utility model relates to the technical field of lifters, in particular to a screw nut lifter.

Background

A lift is one of the most commonly used devices in automotive repair, typically employing hydraulically driven lifting arms to raise or lower the vehicle, but this type of lift has limited smoothness. The prior patent publication No. CN214570365U discloses a screw nut lifting machine, comprising a base plate, the stand on the bottom plate is fixed, the lift arm fixing base of setting on the stand, be connected with two swinging arms through rotatory axostylus axostyle on the lift arm fixing base, open-top's lift vertical groove has been seted up to the side of stand, the top surface of stand has an upper fixed plate through the fix with screw, it is provided with the lead screw to go up the vertical inslot to go up, the top of lead screw is passed through thrust ball bearing and is connected on the upper fixed plate, the bottom surface of upper fixed plate is fixed with driving motor, be provided with the drive gear who is connected with driving motor on the upper fixed plate, the top of lead screw is provided with driven gear, be provided with screw nut on the lead screw, the back of lift arm fixing base is fixed with the lift slider.

The screw nut driving mode is adopted to replace the hydraulic driving mode, lifting is more stable, but in actual use, the bearing limits of screw nuts with different specifications are found to be different, so that screw nut lifting machines with different specifications are required to be used for vehicles with different weights, the lifting machines are required to be provided with a plurality of different specifications, the equipment cost is increased, and the problem that how to automatically assemble and install a plurality of screw nuts according to the weight of the vehicles to synchronously lift is worth researching.

For this purpose, we propose a screw nut lifter to solve the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide a screw nut lifting machine so as to solve the problem that in the prior art, screw nut lifting machines with different specifications are required to be used according to different vehicle weights, and the equipment cost is high.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a screw nut lifts machine, includes the organism, the organism comprises two at least equipment portions, the upper and lower inner wall of equipment portion uses thrust ball bearing to rotate and is connected with the screw rod, adjacent two screw rod screw thread in the equipment portion revolves to opposite, screw rod threaded connection has the nut, the nut external fixation cup joints the lifting arm, the lifting arm runs through the front surface setting of equipment portion, the lifting groove with lifting arm sliding connection has been seted up to the front surface of equipment portion, the coaxial fixedly connected with passive gear of upper end of screw rod, the drive groove has been seted up to the rear surface of equipment portion, at least one be equipped with in the drive groove with passive gear engagement's driving gear, the rear surface fixed mounting of equipment portion has the motor that is used for driving gear.

Preferably, the front and rear surfaces of two adjacent assembly parts are respectively attached with a connecting plate, and the connecting plates are fixedly connected with each assembly part through fastening bolts.

Preferably, the opposite sides of the two adjacent assembling parts are respectively provided with a positioning groove and a positioning convex plate, and the positioning convex plates are matched with the positioning grooves in a positioning way.

Preferably, the longitudinal width of the assembly is greater than the diameter of the driven gear, and the transverse width of the assembly of the box-like structure is the same as the diameter of the driven gear but greater than the transverse width of the assembly of the frame structure.

Preferably, the motor is an IKA-CF type gear motor.

Preferably, an extension arm is fixedly connected to one end of the lifting arm penetrating through the front surface of the assembly part.

Preferably, the assembly comprises two box-like structures and at least one frame structure.

Preferably, the assembly parts are two box-shaped structures.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model can be provided with the assembly parts of two box-shaped structures and the assembly parts of corresponding number of frame structures, has low requirement on the bearing limit of the screw rods, ensures low overall manufacturing cost, does not need to be provided with screw nut lifting machines with various different specifications, further reduces equipment cost, and ensures high stability by synchronously driving a plurality of assembled screw rods to lift vehicles.

Drawings

Fig. 1 is a schematic structural view of a screw nut lifter according to the present utility model;

Fig. 2 is a sectional view of a top view of a screw nut lifting machine according to the present utility model.

In the figure: 1 machine body, 2 lifting groove, 3 screw rod, 4 nut, 5 driven gear, 6 connecting plate, 7 lifting arm, 8 extension arm, 9 fastening bolt, 10 driving gear, 11 motor, 12 location convex plate, 13 positioning groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1-2, a screw nut lifting machine comprises a machine body 1, wherein the machine body 1 is composed of a plurality of assembly parts, each assembly part comprises two box-shaped structures and at least one frame structure, connecting plates 6 are attached to the front and rear surfaces of two adjacent assembly parts, each connecting plate 6 is fixedly connected with each assembly part through a fastening bolt 9, the two assembly parts are fixedly connected with each connecting plate 6 through the fastening bolts 9, and screw grooves in threaded connection with the fastening bolts 9 are formed in corresponding positions of the assembly parts.

The opposite sides of the two adjacent assembling parts are respectively provided with a positioning groove 13 and a positioning convex plate 12, and the positioning convex plates 12 are matched with the positioning grooves 13 in a positioning way, so that the positioning grooves 13 and the positioning convex plates 12 can realize the pre-positioning for the subsequent fixation.

The upper inner wall and the lower inner wall of the assembly part are rotationally connected with a screw rod 3 by using thrust ball bearings, the thrust ball bearings can bear larger axial load, the driving directions of the driven gears 5 in the two adjacent assembly parts are opposite, the screw rods 3 in the two adjacent assembly parts are in opposite directions by screwing, the screw rods 3 are in threaded connection with nuts 4, the lifting arms 7 are fixedly sleeved outside the nuts 4, the lifting arms 7 penetrate through the front surface of the assembly part, one ends of the lifting arms 7 penetrating through the front surface of the assembly part are fixedly connected with expansion arms 8, the contact area between the lifting arms 8 and the bottom of a vehicle is enlarged, the front surface of the assembly part is provided with lifting grooves 2 which are in sliding connection with the lifting arms 7, the sliding of the lifting arms 7 is limited, the upper ends of the screw rods 3 are coaxially and fixedly connected with the driven gears 5, the rear surface of the assembly part is provided with driving grooves, at least one driving gear 10 meshed with the driven gears 5 is arranged in the driving grooves, the driving gears 10 are used for transmitting torque to the screw rods 3, the rear surface of the assembly part is fixedly provided with a motor 11 for driving the driving gears 10, more specifically, and the motor 11 adopts a 5IK motor 90A-11 to drive a low-speed CF gear 11.

The longitudinal width of the assembly part is larger than the diameter of the driven gear 5, and the transverse width of the assembly part of the box-shaped structure is the same as the diameter of the driven gear 5 but larger than the transverse width of the assembly part of the frame structure, so that the engagement between the driven gears 5 and the rotation space thereof are ensured.

The working principle of this embodiment is as follows:

The assembling parts of the frame structures are selected according to the requirement, the assembling parts of the two box-shaped structures are arranged at two ends, the assembling parts of the frame structures are arranged in the middle, the adjacent assembling parts are positioned in advance through the positioning convex plates 12 and the positioning grooves 13 in sequence, and then the connecting plate 6 and the two fastening bolts 9 are used for fixedly connecting the adjacent assembling parts together, so that the driven gears 5 in the adjacent assembling parts are meshed with each other. And a specific number of motors 11 are arranged on the rear surface of the assembly part according to the requirement, the driving direction of each motor 11 is on the premise that motion interference cannot occur, and the screw threads of the screw rods 3 in the two adjacent assembly parts are opposite because the transmission directions of the two adjacent driven gears 5 are opposite. The driving gear 10, the driven gear 5 and the adjacent two driven gears 5 which are meshed with each other are driven by the motor 11 to synchronously drive the plurality of screws 3 to rotate, and the nuts 4 are lifted under the limit of the lifting arms 7 and the lifting grooves 2, so that the vehicle is lifted.

Example 2

This embodiment differs from embodiment 1 in that: the two assembling portions are box-shaped structures, and the assembling principle is different from that of embodiment 1 in that the assembling portions of the frame structure are not required to be assembled.

The utility model can be provided with the assembly parts of two box-shaped structures and the assembly parts of corresponding number of frame structures, has low requirement on the bearing limit of the screw rods 3, ensures low overall manufacturing cost, does not need to be provided with screw nut lifting machines with various different specifications, further reduces equipment cost, and ensures high stability by synchronously driving a plurality of assembled screw rods 3 to lift vehicles.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. A screw nut lifting machine which is characterized in that: including organism (1), organism (1) comprises two at least equipment portions, the upper and lower inner wall of equipment portion uses thrust ball bearing to rotate and is connected with screw rod (3), adjacent two screw rod (3) screw thread in the equipment portion revolves to opposite, screw rod (3) threaded connection has nut (4), nut (4) external fixation cup joints lifting arm (7), lifting arm (7) run through the front surface setting of equipment portion, lifting groove (2) with lifting arm (7) sliding connection are seted up to the front surface of equipment portion, driven gear (5) are coaxial fixedly connected with in upper end of screw rod (3), the transmission groove has been seted up to the rear surface of equipment portion, at least one be equipped with in the transmission groove with driven gear (5) engaged driving gear (10), the rear surface fixed mounting of equipment portion has motor (11) that are used for driving gear (10).

2. A screw nut lifting machine as defined in claim 1, wherein: the front and rear surfaces of two adjacent assembly parts are respectively attached with a connecting plate (6), and the connecting plates (6) are fixedly connected with each assembly part through fastening bolts (9).

3. A screw nut lifting machine as defined in claim 1, wherein: the opposite sides of the two adjacent assembling parts are respectively provided with a positioning groove (13) and a positioning convex plate (12), and the positioning convex plates (12) are matched with the positioning grooves (13) in a positioning way.

4. A screw nut lifting machine as defined in claim 1, wherein: the longitudinal width of the assembly part is larger than the diameter of the driven gear (5), and the transverse width of the assembly part of the box-shaped structure is the same as the diameter of the driven gear (5) but larger than the transverse width of the assembly part of the frame structure.

5. A screw nut lifting machine as defined in claim 1, wherein: the motor (11) adopts a 5IK90A-CF type gear motor.

6. A screw nut lifting machine as defined in claim 1, wherein: one end of the lifting arm (7) penetrating through the front surface of the assembly part is fixedly connected with an expansion arm (8).

7. A screw nut lifting machine as defined in claim 1, wherein: the assembly comprises two box-like structures and at least one frame structure.

8. A screw nut lifting machine as defined in claim 1, wherein: the two assembling parts are box-shaped structures.