CN209974220U

CN209974220U - Double-arm car lifting jack

Info

Publication number: CN209974220U
Application number: CN201920632251.XU
Authority: CN
Inventors: 张建斌; 任文斌
Original assignee: QINGDAO SIJI EQUIPMENT PROJECT CO Ltd
Current assignee: QINGDAO SIJI EQUIPMENT PROJECT CO Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-01-21
Anticipated expiration: 2029-05-06

Abstract

The utility model belongs to the technical field of rail vehicle maintenance, and discloses a double-arm car lifting jack, which comprises a frame body, a movable plate arranged at the bottom of the frame body, a lifting assembly sliding along the vertical direction of the frame body and a power assembly driving the lifting assembly to slide; the lifting assembly comprises a support frame which slides along the vertical direction of the frame body, a bracket connected to the outer side of the support frame and lifting frames symmetrically arranged on the front side of the bracket; the lifting frame is fixedly arranged on the bracket through the mounting seat; articulated connection between hoisting frame and the mount pad, the vertical setting of the axis of rotation of hoisting frame, the front end level of hoisting frame is equipped with the support arm, and the support arm inboard is inclined plane portion. The power assembly comprises a main motor and a lead screw, wherein the main motor is mounted above the frame body, the lead screw is fixedly connected to an output shaft of the main motor, the lead screw is vertically arranged in the through groove, and the lead screw is in threaded connection with the inner wall of the support frame. The utility model discloses compact structure, rationally distributed, the simple operation, stability is good, and the security is high.

Description

Double-arm car lifting jack

Technical Field

The utility model belongs to the technical field of rail vehicle overhauls, more specifically relate to a both arms car lifting jack.

Background

Along with the rapid development of cities, urban rail transit becomes the mainstream of urban traffic development in China, the traffic form has the advantages of ground space saving, stable vehicle speed, environmental protection, energy conservation, rapidness, time conservation and the like, and the urban rail transit is greatly developed as more and more citizens choose the urban rail transit for going out.

In the track traffic field, the rail trolley car is by more and more use because of its good performance and less noise, but in order to ensure urban rail transit vehicle's safe operation, will overhaul it to maintain after the vehicle operation a period of time, need lift off ground to the vehicle during maintenance, provide certain space for overhauing, this in-process needs use car lifting jack, car lifting jack among the prior art is the equipment that lifts the automobile body from the automobile body bottom, current car lifting jack includes buried and portable, but no matter buried or portable, all design for steel wheel rail formula rail vehicle, the position that contacts with the automobile body all is the car lifting point that the steel sheet was made, the rubber tyer of the rail trolley car of unable frame. Therefore, it is an urgent problem to provide a car lifting jack for a rail electric car.

The 'car lifting jack with a double self-locking structure' of Chinese patent application No. 201510825171.2 (application date is 2015.11.24) comprises a car lifting jack body, a bracket mechanism which can move up and down along the car body and is used for lifting a car body, and a lead screw which is vertically arranged in the car body, wherein a working nut is arranged on the lead screw in a matching way and is fixedly connected to the bracket mechanism; the driving device comprises a worm and gear speed reducer positioned on a bottom plate of the machine body and is coaxially arranged with the lead screw; however, the driving machine is directly contacted with the car body, and the rubber wheels of the rail tramcar cannot be erected.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides a double-arm car lifting jack, which comprises a frame body, a movable plate arranged at the bottom of the frame body, a lifting assembly sliding along the vertical direction of the frame body and a power assembly driving the lifting assembly to slide; the inside of support body has been seted up logical groove, leads to the groove and runs through the support body along vertical direction. The lifting assembly comprises a support frame which slides along the vertical direction of the frame body, a bracket connected to the outer side of the support frame and lifting frames symmetrically arranged on the front side of the bracket; the supporting frame comprises two inner walls and two outer walls, the inner walls are arranged in the outer walls, and the inner walls and the outer walls are arranged in parallel; the lifting frame is fixedly arranged on the bracket through the mounting seat; the front side of the bracket is provided with a plurality of threaded holes, so that the mounting position of the mounting seat on the bracket can be conveniently adjusted; articulated connection between hoisting frame and the mount pad, the vertical setting of the axis of rotation of hoisting frame, the front end level of hoisting frame is equipped with wobbling support arm, and the support arm inboard is inclined plane portion, and inclined plane portion is the high inclined plane in the inboard low outside. The support and the support frame are installed in a matched mode through the linear slide rail and the linear slide rail slide block, the support frame can horizontally move in the front-back direction of the support frame, and the stop lever is installed on the rear side of the support frame.

The power assembly comprises a main speed reducer arranged above the frame body and a lead screw fixedly connected to an output shaft of the main speed reducer, the lead screw is vertically arranged inside the through groove, two ends of the lead screw are rotatably connected with the frame body, and the lead screw is in threaded connection with the inner wall of the support frame.

The supporting frame is characterized in that supporting wheels are arranged on the outer walls of the left side and the right side of the supporting frame, the supporting wheels are in contact with the upper surface of the supporting frame, an oil cylinder is connected between the front side of the supporting frame and the inner wall of the supporting frame, the end part of a piston rod of the oil cylinder is fixedly connected with the supporting frame, front main guide wheels are arranged on the inner walls of the supporting frames on the two sides of the oil cylinder, the front main guide wheels are in contact with the front side of the supporting frame, rear main guide wheels are symmetrically arranged on the rear side of the inner wall of the supporting frame, auxiliary guide wheels are installed on the inner wall of the supporting frame below the rear main guide wheels, the rear main guide.

The floating support is arranged under the supporting arm, the floating support is fixedly connected with the movable plate, the bottom end of the floating support is hinged with the driven wheel, a spring is arranged in the floating support, when the spring bears the weight, the spring is compressed, the movable plate is in direct contact with the track, when the spring does not bear the weight, the spring extends to jack up the driven wheel, and the movable plate is separated from the track, so that friction is reduced. The rear side of the movable plate is symmetrically provided with a rotating groove, a driving wheel is arranged in the rotating groove, the movement of the driving wheel is driven by an auxiliary motor, and the auxiliary motor is arranged above the movable plate.

When the guide rail electric car is assembled or overhauled, the lead screw is driven to rotate through the main speed reducer, and the support frame is lowered to the lowest position. Then the positioning pin of the lifting frame is pulled out, and the two supporting arms of the car lifting jack are pushed to be in a left-right unfolding state, so that the supporting arms can not obstruct the guide rail electric car from entering a station. After the guide rail electric car is in place, the two support arms are controlled to be converted into a forward parallel state from a left unfolded state and a right unfolded state, after the positioning pins of the lifting frame are inserted, the control oil cylinder drives the support to horizontally move, the support drives the lifting frame to move towards the bottom of the car body, and the two support arms are respectively positioned at two sides of the bottom of the rubber wheel at the bottom of the car body, then the power assembly is controlled to enable the support frame to move vertically upwards, at the moment, the inclined plane parts on the lifting frames abut against the bottom cambered surface of the rubber wheel along with the lifting of the support frame, the two lifting frames lift the rubber wheel along with the lifting of the support frame, the vehicle body can be lifted under the premise of not touching the side wall of the vehicle body, because the lifting frames only contact with the rubber wheel in the lifting process of the vehicle body, therefore, the possibility that the vehicle body is damaged due to the fact that the vehicle body is contacted with the lifting frame is reduced, meanwhile, the contact area of the inclined plane part and the rubber wheel is large, and the rubber wheel is protected, and the damage to the rubber wheel is reduced.

Has the advantages that: the utility model has compact structure, reasonable layout, convenient operation and good stability, reduces the possibility of damaging the body of the vehicle body caused by the contact between the vehicle body and the hoisting frame, and has high safety; the blank of the trolley-bus lifting machinery is filled.

Drawings

FIG. 1 is a schematic front side view of the present invention;

FIG. 2 is a schematic view of the rear side structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 4 is an enlarged schematic view of the structure at B of the present invention;

FIG. 5 is an enlarged schematic view of the structure at the position C of the present invention;

FIG. 6 is an enlarged schematic view of the position D of the present invention;

FIG. 7 is an enlarged schematic view of the structure at E of the present invention;

fig. 8 is an enlarged schematic view of the utility model at F;

as shown in fig. 1-8: the device comprises a power assembly 1, a main speed reducer 11, a lead screw 12, a frame body 2, a through groove 21, a support frame 3, a support wheel 31, a front main guide wheel 32, a rear main guide wheel 33, an auxiliary guide wheel 34, a linear slide rail 35, a linear slide rail slide block 36, a support 4, a stop lever 41, a threaded hole 42, a lifting frame 5, a support arm 51, a mounting seat 52, an inclined plane part 511, a moving plate 6, an auxiliary motor 61, a driving wheel 62, a rotary groove 63, a floating support 64, a driven wheel 65, an oil cylinder 7 and a lifting assembly 8.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention

A double-arm car lifting jack comprises a frame body 2, a moving plate 6 arranged at the bottom of the frame body 2, a lifting assembly 8 sliding along the vertical direction of the frame body 2 and a power assembly 1 driving the lifting assembly 8 to slide; through groove 21 has been seted up to the inside of support body 2, and frame body 2 is run through along vertical direction to through groove 21. The lifting assembly 8 comprises a support frame 3 which slides along the vertical direction of the frame body 2, a bracket 4 connected to the outer side of the support frame 3 and lifting frames 5 symmetrically arranged on the front side of the bracket 4; the support frame 3 comprises two inner walls and two outer walls, the inner walls are arranged in the outer walls, and the inner walls and the outer walls are arranged in parallel; the lifting frame 5 is fixedly arranged on the bracket 4 through a mounting seat 52; the front side of the bracket 4 is provided with a plurality of threaded holes 42, so that the mounting position of the mounting seat 52 on the bracket 4 can be conveniently adjusted; articulated connection between hoisting frame 5 and mount pad 52, the vertical setting of the axis of rotation of hoisting frame 5, the front end level of hoisting frame 5 is equipped with wobbling support arm 51, and support arm 51 inboard is inclined plane portion 511, and inclined plane portion 511 is the high inclined plane in the low outside of inboard. The support 4 and the support frame 3 are installed in a matched mode through the linear slide rail 35 and the linear slide rail sliding block 36, the support 4 can horizontally move along the front and back direction of the support frame 3, and the stop rod 41 is installed on the back side of the support 4.

The power assembly comprises a main speed reducer 11 arranged above the frame body 2 and a lead screw 12 fixedly connected to an output shaft of the main speed reducer 11 on a coaxial line, the lead screw 12 is perpendicularly arranged inside the through groove 21, two ends of the lead screw 12 are rotatably connected with the frame body 2, and the lead screw 12 is in threaded connection with the inner wall of the support frame 3.

Be equipped with supporting wheel 31 on the outer wall of the 3 left and right sides of support frame, the upper surface contact of supporting wheel 31 and support 4, be connected with hydro-cylinder 7 between support 4 front side and the 3 inner walls of support frame, the piston rod tip and the 4 fixed connection of support of hydro-cylinder 7, be equipped with preceding main leading wheel 32 on the 3 inner walls of support frame of hydro-cylinder 7 both sides, preceding main leading wheel 32 contacts with the front side of

support body

2, 3 inner walls rear side symmetries of support frame are equipped with back main leading wheel 33, install vice leading wheel 34 on the 3 inner walls of support frame of back main leading wheel 33 below, back main leading wheel 33 and vice leading wheel 34 all contact with the 2 lateral walls of support body, preceding main leading wheel 32, the axis of rotation level setting of back main leading wheel 33 and vice leading.

A floating support 64 is arranged right below the supporting arm 51, the floating support 64 is fixedly connected with the moving plate 6, a driven wheel 65 is hinged to the bottom end of the floating support 64, a spring is arranged inside the floating support 64, when the spring is loaded, the spring is compressed, the moving plate 6 directly contacts with the track, when the spring is not loaded, the spring extends, the driven wheel 65 is jacked up, the moving plate 6 is separated from the track, and friction is reduced. The rear side of the moving plate 6 is symmetrically provided with a rotating groove 63, a driving wheel 62 is arranged in the rotating groove 63, the driving wheel 62 is driven by an auxiliary motor 61, and the auxiliary motor 61 is arranged above the moving plate 6.

When the guide rail electric car is assembled or overhauled, the lead screw 12 is driven to rotate through the main speed reducer 11, and the support frame 3 is lowered to the lowest position. Then the positioning pin of the lifting frame is pulled out, and the two supporting arms 51 of the car lifting jack are pushed to be in a left-right unfolding state, so that the supporting arms 51 can not obstruct the tramcar from entering the station. After the guide rail electric car is in place, the two supporting arms 51 are controlled to be converted into a forward parallel state from a left unfolded state and a right unfolded state, after a positioning pin of the lifting frame is inserted, the control oil cylinder 7 drives the support 4 to move horizontally, the support 4 drives the lifting frame 5 to move towards the bottom of the car body, the two supporting arms 51 are respectively positioned at two sides of the bottom of a rubber wheel at the bottom of the car body, then the power assembly 1 is controlled to enable the support frame 3 to move vertically upwards, at the moment, the inclined plane part 511 on the lifting frame 5 can abut against the bottom cambered surface of the rubber wheel along with the lifting of the support frame 3, the rubber wheel is lifted by the two lifting frames 5 along with the lifting of the support frame 3, the car body can be lifted under the forward lifting without touching the side wall of the car body, because the lifting frame 5 only contacts with the rubber wheel in the lifting process of the car body, the possibility that the car, the rubber wheel is protected and the damage to the rubber wheel is reduced.

When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on or indirectly connected to the other element, or when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

The terms of orientation such as left, right, up, down, etc. in the present embodiment are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a both arms car lifting jack which characterized in that: the lifting mechanism comprises a frame body (2), a moving plate (6) arranged at the bottom of the frame body (2), a lifting assembly (8) sliding along the vertical direction of the frame body (2) and a power assembly (1) driving the lifting assembly (8) to slide, wherein a through groove (21) is formed in the frame body (2), the lifting assembly (8) comprises a support frame (3) sliding along the vertical direction of the frame body (2), a support (4) connected to the outer side of the support frame (3) and a lifting frame (5) symmetrically arranged on the front side of the support frame (4), a supporting arm (51) capable of swinging is horizontally arranged at the front end of the lifting frame (5), an inclined plane part (511) is arranged on the inner side of the supporting arm (51), and the support frame (4) and the support frame (3) are installed in a matched mode through a linear slide rail (35) and a;

the lifting frame (5) is fixedly arranged on the support (4) through the mounting seat (52), a plurality of threaded holes (42) are formed in the front side of the support (4), the lifting frame (5) is hinged with the mounting seat (52), the rotating axis of the lifting frame (5) is vertically arranged, and the inclined plane part (511) is an inclined plane with a lower inner side and a higher outer side; supporting wheels (31) are arranged on the outer walls of the left side and the right side of the supporting frame (3), and the supporting wheels (31) are in contact with the upper surface of the support (4).

2. A double-arm car lifting jack according to claim 1, wherein: power component (1) is including installing main speed reducer (11) and coaxial line fixed connection lead screw (12) on main speed reducer (11) output shaft above support body (2), lead screw (12) are located through groove (21) inside perpendicularly, rotate between the both ends of lead screw (12) and support body (2) and be connected, threaded connection between lead screw (12) and support frame (3) inner wall.

3. A double-arm car lifting jack according to claim 1, wherein: be connected with hydro-cylinder (7) between support (4) front side and support frame (3) inner wall, the piston rod tip and support (4) fixed connection of hydro-cylinder (7), be equipped with preceding main leading wheel (32) on support frame (3) inner wall of hydro-cylinder (7) both sides, preceding main leading wheel (32) and the front side of support body (2) contact, support frame (3) inner wall rear side symmetry is equipped with back main leading wheel (33), install vice leading wheel (34) on support frame (3) inner wall of back main leading wheel (33) below, back main leading wheel (33) and vice leading wheel (34) all contact with support body (2) lateral wall.

4. A double-arm car lifting jack according to claim 3, wherein: the rotation axes of the front main guide wheel (32), the rear main guide wheel (33) and the auxiliary guide wheel (34) are horizontally arranged.

5. A double-arm car lifting jack according to claim 1, wherein: be equipped with floating support (64) under support arm (51), floating support (64) and movable plate (6) fixed connection, the bottom of floating support (64) articulates there is from driving wheel (65), the inside spring that is equipped with of floating support (64), revolving chute (63) have been seted up to movable plate (6) rear side symmetry, install action wheel (62) in revolving chute (63), install in movable plate (6) top vice motor (61).

6. A double-arm car lifting jack according to claim 1, wherein: and a stop lever (41) is arranged at the rear side of the bracket (4).

7. A double-arm car lifting jack according to claim 1, wherein: the through groove (21) penetrates through the frame body (2) along the vertical direction.