Lifting column of car lifting jack

Abstract

The utility model relates to the technical field of car lifting jacks, and discloses a car lifting jack lifting column which comprises a rack, screw rods are connected to the upper side and the lower side of the rack, a speed reducer and a motor are installed on the right side of the rack, the transmission end of the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the screw rods, and the screw rods are connected with the screw rods. The upper side of the screw rod is connected with a lifting plate, the left side and the right side of the lifting plate are each connected with two sets of auxiliary wheels, the left side and the right side of the rack pair are each connected with two sets of guide rails, the auxiliary wheels on the left side and the right side are located at the opposite ends of the guide rails on the left side and the right side respectively, and the lower side of the lifting plate is connected with an inclined supporting plate; according to the scheme, the guide rails, the auxiliary wheels, the supporting plates, the screw pipes, the rotating wheels, the connecting chains and the balancing weights are matched, the lifting plate is limited and supported in an auxiliary mode in various forms and directions, the stress of the lifting plate and the screw rods is reduced, and then the using stability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle lifting machines, in particular to a lifting column of a vehicle lifting machine. Background Art

[0002] The car lifting machine is a key equipment used in the disassembly, inspection and installation of the whole vehicle during the overhaul and maintenance of the rail vehicle rack. After searching, the authorization number CN218320481U proposed a car lifting machine lifting column lowering structure, including a lifting column, a screw rod and a jamming protection mechanism. The lifting column is provided with a nut lifting plate, and the nut lifting plate is provided with a slide groove arranged coaxially with the screw rod. The screw rod is installed in the slide groove and is fixed on the elevator of the car lifting machine. The device is installed on the screw through a working nut and a safety nut, and then the screw is driven to rotate by a motor to achieve the lifting function of the lifting column. However, the device only uses the working nut and the safety nut, and cannot guarantee the force conditions between the lifting column and the transmission screw rod and between the working nuts, which easily leads to the risk of damage to the screw or the lifting column due to uneven force. For this reason, we propose a car lifting machine lifting column. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a vehicle lifting column, which effectively solves the above problem.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting column of a vehicle lifting machine, comprising a frame, wherein screw rods are connected to the upper and lower sides of the frame, a reducer and a motor are installed on the right side of the frame, the transmission end of the motor is connected to the input end of the reducer, the output end of the reducer is connected to the screw rod, a lifting plate is connected to the upper side of the screw rod, two sets of auxiliary wheels are connected to the left and right sides of the lifting plate, two sets of guide rails are connected to the left and right sides of the frame, and the auxiliary wheels on the left and right sides are respectively located at the opposite ends of the left and right guide rails.

[0005] Preferably, the lower side of the lifting plate is connected to an inclined support plate, the lower side of the screw rod is connected to a screw tube, and the lower side of the inclined support plate is connected to the screw tube.

[0006] Preferably, a connecting chain is provided on the upper side of the frame, a lower side of the connecting chain is connected to a lifting plate, and a counterweight is connected to the right side of the connecting chain.

[0007] Preferably, a rotating wheel is connected to the upper side of the frame, a sliding groove is provided on the outer side of the rotating wheel, and the connecting chain is located inside the sliding groove of the rotating wheel.

[0008] Preferably, two groups of second guide rods are connected to the right side of the frame, and the two groups of second guide rods respectively penetrate the front and rear sides of the counterweight block.

[0009] Preferably, both the front and rear sides of the frame are connected with first guide rods, and the lifting plate is located outside the first guide rods.

[0010] Preferably, both the front and rear sides of the lifting plate are connected with conduits, the inner wall of the conduit is evenly connected with a plurality of groups of rotating beads, and the first guide rod is located inside the conduit.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. This device is equipped with guide rails, auxiliary wheels, support plates, screw tubes, rotating wheels, connecting chains, and counterweights, and uses various forms and directions to limit and assist in supporting the lifting plate, thereby reducing the force on the lifting plate and the screw, thereby improving the stability of the device;

[0013] 2. By setting the first guide rod, the guide tube and the rotating ball in coordination, the lifting plate is limited to prevent shaking during the up and down movement of the lifting plate. At the same time, due to the connection between the guide tube, the rotating ball and the first guide rod during the up and down movement of the lifting plate, the lifting plate moves more stably under the limit of the first guide rod, thereby improving the stability of the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of the lifting column of the utility model vehicle lifting machine;

[0017] Figure 2 This is a schematic diagram of the lifting plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the second guide rod structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the rotating bead structure of the utility model.

[0020] In the figure: 100, frame; 101, first guide rod; 110, screw rod; 120, reducer; 130, motor; 140, lifting plate; 141, guide tube; 142, rotating ball; 150, auxiliary wheel; 160, guide rail; 170, inclined support plate; 180, screw tube; 190, connecting chain; 200, counterweight block; 210, rotating wheel; 220, second guide rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4A vehicle lifting column comprises a frame 100, wherein the upper and lower sides of the frame 100 are rotatably connected with screw rods 110, a reducer 120 and a motor 130 are fixedly installed on the right side of the frame 100, a transmission end of the motor 130 is fixedly connected with an input end of the reducer 120, an output end of the reducer 120 is fixedly connected with the screw rod 110, a lifting plate 140 is screwed on the upper side of the screw rod 110, a first guide rod 101 is fixedly connected to the front and rear sides of the frame 100, the lifting plate 140 is located on the outside of the first guide rod 101, a guide tube 141 is fixedly connected to the front and rear sides of the lifting plate 140, a plurality of groups of rotating beads 142 are evenly and movably connected to the inner wall of the guide tube 141, the first guide rod 101 is located inside the guide tube 141, and a plurality of rotating beads 142 are evenly and movably connected to the inner wall of ... The lower lifting plate 140 moves up and down, making the lifting plate 140 more stable during its movement. During the lifting plate 140 moving up and down, due to the connection between the guide tube 141, the rotating ball 142 and the first guide rod 101, the lifting plate 140 moves more stably under the limit of the first guide rod 101, thereby improving the stability of the device. The left and right sides of the lifting plate 140 are rotatably connected with two sets of auxiliary wheels 150, and the left and right sides of the frame 100 are fixedly connected with two sets of guide rails 160. The left and right auxiliary wheels 150 are respectively located at the opposite ends of the left and right guide rails 160. The starting motor 130 drives the reducer 120 to run, and the reducer 120 drives the screw 110 to rotate. The screw 110 rotates to drive the lifting plate 140 to move up and down, and the lifting plate 140 is lifted. During the downward movement, because objects are placed on the upper side of the lifting plate 140, if the lifting plate 140 is tilted, pressure will be applied to the auxiliary wheels 150 on the left and right sides of the lifting plate 140, so that the auxiliary wheels 150 squeeze the guide rails 160, and the auxiliary wheels 150 are limited by the cooperation of the guide rails 160 and the frame 100, so that the lifting plate 140 is relatively stable during the operation, thereby improving the stability of the use of the device. The lower side of the lifting plate 140 is fixedly connected to an inclined support plate 170, and the lower side of the screw 110 is fixedly connected to a screw tube 180, and the lower side of the inclined support plate 170 is screwed to the screw tube 180. When the screw 110 rotates to drive the lifting plate 140 to move up and down, it will also drive the screw tube 180 to move up and down, so that the screw tube 180 drives the inclined support plate 170 to move up and down. The inclined support plate 170 moves up and down, and the lifting plate 140 is auxiliary supported by the screw tube 180 and the inclined support plate 170 to improve the stability of the lifting plate 140. The upper side of the frame 100 is rotatably connected to the rotating wheel 210, and a slide groove is provided on the outer side of the rotating wheel 210. The connecting chain 190 is located inside the slide groove of the rotating wheel 210. The upper side of the frame 100 is provided with a connecting chain 190, and the lower side of the connecting chain 190 is fixedly connected to the lifting plate 140. The right side of the connecting chain 190 is fixedly connected to the counterweight block 200. During the lifting plate 140 moving up and down, it is supported by the connecting chain 190 and the rotating wheel 210, so that the counterweight block 200 assists in counterweighting the lifting plate 140 and the objects on the lifting plate 140, so that when the lifting plate 140 moves upward,The counterweight block 200 counterweights the lifting plate 140, reduces the force of the screw rod 110 on the lifting plate 140, and improves the stability of the device. Two sets of second guide rods 220 are fixedly connected to the right side of the frame 100. The two sets of second guide rods 220 respectively penetrate the front and rear sides of the counterweight block 200. The second guide rods 220 limit the counterweight block 200 during the up and down movement of the counterweight block 200, thereby improving the stability of the operation of the counterweight block 200.

Claims

1. A vehicle lifting column, characterized in that: The invention comprises a frame (100), wherein the upper and lower sides of the frame (100) are connected to screw rods (110), a reducer (120) and a motor (130) are installed on the right side of the frame (100), the transmission end of the motor (130) is connected to the input end of the reducer (120), the output end of the reducer (120) is connected to the screw rod (110), the upper side of the screw rod (110) is connected to a lifting plate (140), the left and right sides of the lifting plate (140) are connected to two sets of auxiliary wheels (150), the left and right sides of the frame (100) are connected to two sets of guide rails (160), and the auxiliary wheels (150) on the left and right sides are respectively located at the opposite ends of the guide rails (160) on the left and right sides.

2. A vehicle lifting column according to claim 1, characterized in that: The lower side of the lifting plate (140) is connected to an inclined support plate (170), the lower side of the screw rod (110) is connected to a screw tube (180), and the lower side of the inclined support plate (170) is connected to the screw tube (180).

3. The vehicle lifting column according to claim 1, characterized in that: A connecting chain (190) is arranged on the upper side of the frame (100), the lower side of the connecting chain (190) is connected to the lifting plate (140), and a counterweight block (200) is connected to the right side of the connecting chain (190).

4. A vehicle lifting column according to claim 3, characterized in that: The upper side of the frame (100) is connected to a rotating wheel (210), a sliding groove is provided on the outer side of the rotating wheel (210), and the connecting chain (190) is located inside the sliding groove of the rotating wheel (210).

5. The vehicle lifting column according to claim 3, characterized in that: Two groups of second guide rods (220) are connected to the right side of the frame (100), and the two groups of second guide rods (220) respectively penetrate the front and rear sides of the counterweight block (200).

6. The vehicle lifting column according to claim 1, characterized in that: The front and rear sides of the frame (100) are both connected to a first guide rod (101), and the lifting plate (140) is located outside the first guide rod (101).

7. A vehicle lifting column according to claim 6, characterized in that: The front and rear sides of the lifting plate (140) are both connected to a conduit (141), the inner wall of the conduit (141) is evenly connected to a plurality of groups of rotating beads (142), and the first guide rod (101) is located inside the conduit (141).

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