CN218434612U

CN218434612U - Fixed gantry car lifting jack

Info

Publication number: CN218434612U
Application number: CN202222798978.XU
Authority: CN
Inventors: 黎莎; 程利波; 刘广丹; 闫颖辉; 王俊峰
Original assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Current assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-02-03
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a vehicle inspection technical field especially relates to a fixed portal frame car machine, including portal frame, support head, translation mechanism, elevating system and telescopic machanism: the portal frame comprises a portal beam and upright columns arranged at two ends of the length of the portal beam; the supporting head is arranged on the gantry beam; the translation mechanism is configured to drive the supporting head to move along a first direction; the lifting mechanism is configured to drive the supporting head to move along the third direction; the telescopic mechanism is configured to drive the holding head to move along the second direction. Can realize the car demand of putting up of different motorcycle types like this, improve the suitability.

Description

Fixed gantry car lifting jack

Technical Field

The utility model relates to a vehicle inspection technical field especially relates to a fixed portal frame car machine.

Background

The car lifting jack is a necessary device for railway vehicle maintenance, and is mainly used for lifting and supporting the railway vehicle so as to facilitate the maintenance of the railway vehicle. The car lifting jack is mainly divided into a pit car lifting jack and a movable car lifting jack. When the ground pit car lifting jack is not used, all the ground pit car lifting jacks are arranged below the ground, and the movable car lifting jack is arranged above the ground. In order to be matched with the maintenance of a railway vehicle bogie or other parts, special maintenance equipment is arranged in a deep foundation pit under a railway vehicle, a channel for moving the car lifting jack to move transversely is cut off by the foundation pit, and the car lifting jack can not be compatible with the car lifting demands of different car types.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed portal frame car machine can compatible different motorcycle types put up the car demand.

To achieve the purpose, the utility model adopts the following technical proposal:

fixed portal frame car machine, including portal frame, support head, translation mechanism, elevating system and telescopic machanism: the portal frame comprises a portal beam and upright columns arranged at two ends of the length of the portal beam; the supporting head is arranged on the gantry beam; the translation mechanism is configured to drive the holding head to move along a first direction; the lifting mechanism is configured to drive the holding head to move along a third direction; the telescopic mechanism is configured to drive the holding head to move along a second direction; the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, the telescopic mechanism includes a supporting head frame and a telescopic assembly, a through hole is formed in the supporting head frame along the width direction of the gantry beam in a penetrating manner, the supporting head is arranged in the through hole, and the telescopic assembly is configured to drive the supporting head to extend out of or retract into the through hole.

Optionally, the lifting mechanism includes a mounting seat, a lifting beam and a lifting assembly, the mounting seat is connected to the translation mechanism, the lifting assembly is mounted on the mounting seat, the lifting beam is connected to the supporting head, and the lifting assembly is configured to drive the lifting beam to lift along the height direction of the gantry.

Optionally, the mounting seat has an opening at the bottom, and one end of the lifting beam can be inserted into the mounting seat from the opening at the bottom of the mounting seat.

Optionally, the lifting mechanism further comprises a linear guide rail and a sliding block, one of the linear guide rail and the sliding block is arranged inside the mounting seat, the other is arranged on the lifting beam, and the lifting beam is connected with the mounting seat in a sliding manner along the height direction of the portal frame.

Optionally, the translation mechanism comprises a walking assembly and a translation assembly, the walking assembly comprises a walking rail and walking wheels, the walking wheels are arranged on the lifting mechanism, the walking rail is mounted on the gantry beam along the length direction of the gantry beam, and the walking wheels are in sliding fit with the walking rail; the translation assembly is configured to drive the lifting mechanism to move along the length direction of the gantry beam.

Optionally, the walking wheel includes flat wheel and two kinds of V wheels, the walking rail includes flat wheel walking rail and two kinds of V wheel walking rail, the flat wheel with flat wheel walking rail sliding fit, the V wheel with V wheel walking rail sliding fit.

Optionally, the V wheel includes two cylindrical rollers arranged at an included angle, the top surface of the V wheel running rail includes two tangent planes arranged at an included angle, and two of the V wheels the cylindrical rollers are respectively in sliding fit with the two tangent planes.

Optionally, an installation groove is formed in the gantry beam in a penetrating manner in the height direction of the gantry, and the translation mechanism is installed in the installation groove.

The utility model has the advantages that: the utility model provides a fixed longmen car lifting jack can realize driving the removal of holding in the palm the head along first direction, second direction and third party direction, and then can overcome the hindrance that the deep basal pit removed the head that holds in the palm, realizes the car lifting demand of different motorcycle types.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a fixed gantry crane proposed in an embodiment of the present invention;

fig. 2 is a front view of a fixed gantry lifting machine according to an embodiment of the present invention;

fig. 3 is a top view of the fixed gantry crane according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a translation mechanism and a lifting mechanism provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a lifting mechanism proposed in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a telescopic mechanism provided in an embodiment of the present invention.

In the figure: 1. a gantry; 11. a gantry beam; 11a, a mounting groove; 12. a column; 2. supporting a head; 3. a translation mechanism; 31. a translation assembly; 31a, a second lead screw; 31b, a second nut; 31c, a third power member; 32. a walking assembly; 32a, V wheel; 32b, a V-wheel traveling rail; 32c, a flat wheel; 32d, a flat wheel traveling rail; 33. a stop assembly; 33a, oilless bearing plate; 33b, stop slide rail; 33c, a stop plate; 4. a lifting mechanism; 41. a lifting assembly; 41a, a first lead screw; 41b, a first nut; 41c, a second power member; 41d, nut connecting plates; 42. a lifting beam; 43. a mounting seat; 5. a telescoping mechanism; 51. a telescopic assembly; 51a, a gear; 51b, a rack; 51c, a first power member; 52. a head supporting frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The embodiment provides a fixed gantry car lifting jack which is mainly used for lifting vehicles during vehicle maintenance, such as railway vehicle maintenance. The fixed gantry crane in the embodiment comprises a gantry and a supporting head, wherein the supporting head is arranged on the gantry, the operation of three axes of X, Y and Z can be realized, and every two of the three axes of X, Y and Z are perpendicular.

Referring to fig. 1 to 6, the fixed gantry crane in this embodiment includes a gantry 1, a translation mechanism 3, a lifting mechanism 4, a telescoping mechanism 5, and a supporting head 2, where the gantry 1 includes a gantry beam 11 and columns 12 disposed at two ends of the length of the gantry beam 11, the supporting head 2 is disposed on the gantry beam 11, the translation mechanism 3 is configured to drive the supporting head 2 to move along a first direction, the lifting mechanism 4 is configured to drive the supporting head 2 to move along a third direction, and the telescoping mechanism 5 is configured to drive the supporting head 2 to move along a second direction.

In this embodiment, install the support head 2 on gantry beam 11, realize the removal of support head 2 along the second direction through telescopic machanism 5, realize the removal of support head 2 along the third direction through elevating system 4, realize the removal of support head 2 along the first direction through translation mechanism 3, can overcome the interference of underground deep basal pit, satisfy the car erection demand of all motorcycle types.

Referring to fig. 1 and 6, two columns 12 are respectively installed on two sides of a foundation pit for installing and repairing equipment, the telescoping mechanism 5 includes a supporting head frame 52 and a telescoping assembly 51, the supporting head frame 52 is provided with a through hole along the width direction of the gantry beam 11 for inserting the supporting head 2, the telescoping assembly 51 is arranged on the supporting head frame 52, and the supporting head 2 is located in the through hole and can extend out or retract into the through hole under the driving of the telescoping assembly 51. At this time, the second direction is the width direction (Y direction) of the gantry beam 11. Illustratively, the telescopic assembly 51 comprises a rack 51b, a gear 51a and a first power member 51c, wherein the rack 51b is installed on one side of the cradle head 2 along the width direction of the gantry beam 11, the gear 51a is engaged with the rack 51b, and the gear 51a can drive the cradle head 2 installed with the rack 51b to move along the width direction of the gantry beam 11 when rotating, so as to realize the telescopic of the cradle head 2 in the cradle head frame 52. The output end of the first power member 51c is connected with the gear 51a, and the gear 51a is rotated under the driving of the first power member 51c, so that the inconvenience and the unsafety of manual operation are avoided, and the automation is improved. The rack 51b and the gear 51a which are meshed with each other not only have a self-locking function, but also can convert rotary motion into linear motion, so that the length of the supporting head 2 extending out of the supporting head frame 52 is accurately controlled. The first power member 51c may be a motor, and is specifically disposed outside the head supporting frame 52, and an output end thereof is inserted into the head supporting frame 52 to be connected with the gear 51a, so as to facilitate maintenance.

The telescopic assembly 51 may also be a hydraulic device, such as a hydraulic cylinder, for directly pushing the cradle head 2 to move in the cradle head frame 52 along the width direction of the gantry beam 11.

Referring to fig. 4-5, the lifting mechanism 4 includes a mounting base 43, a lifting beam 42 and a lifting assembly 41, wherein the mounting base 43 is connected to the translation mechanism 3, the bottom of the mounting base is open, one end of the lifting beam 42 can be inserted into the mounting base 43 from the bottom opening of the mounting base 43, the other end of the lifting beam 42 is connected to the head supporting frame 52, and the lifting beam 42 can drive the head supporting frame 52 to lift under the action of the lifting assembly 41. At this time, the third direction refers to the height direction (Z direction) of the gantry 1. Illustratively, the lifting assembly 41 includes a first lead screw 41a, a first nut 41b and a second power member 41c, one end of the first lead screw 41a passes through the top of the mounting seat 43 and is connected to the second power member 41c fixedly connected to the mounting seat 43, and the first nut 41b is sleeved on the first lead screw 41a and fixedly connected to the lifting beam 42. Under the driving of the second power member 41c, the first lead screw 41a rotates to drive the lifting beam 42 fixedly connected with the first nut 41b to perform lifting movement. The first lead screw 41a and the first nut 41b also have a self-locking function, and can convert rotary motion into linear motion, so that the precise control of the lifting height of the lifting beam 42 is realized. The second power member 41c may also be a motor. Specifically, the lifting beam 42 is provided with a receiving groove extending in the third direction from one end close to the second power element 41c, the first nut 41b is connected with the lifting beam 42 through a nut connecting plate 41d located in the receiving groove, and the lifting beam 42 can enter the inside of the mounting seat 43 and finally abut against the top surface of the mounting seat 43 when rising along with the first nut 41b, so that the space is saved.

Of course, the lifting assembly 41 may be implemented by other structures, such as a combination of a gear and a rack.

In order to ensure that the lifting beam 42 lifts along the height direction of the portal frame, the lifting mechanism 4 further comprises a linear guide rail and a slide block, and the lifting beam 42 is connected with the mounting base 43 in a sliding manner along the height direction of the portal frame. Specifically, one of the linear guide and the slider is disposed inside the mount 43, and the other is disposed on the lifting beam 42.

Referring to fig. 3-4, the translation mechanism 3 includes a translation assembly 31, and the mounting seat 43 can move along the length direction of the gantry beam 11 under the driving of the translation assembly 31. At this time, the first direction refers to the longitudinal direction (X direction) of the gantry beam 11. The translation assembly 31 may be implemented using the same structure as the lift assembly 41. Exemplarily, the translation assembly 31 includes a second lead screw 31a, a second nut 31b and a third power member 31c, the third power member 31c is fixedly connected to the gantry beam 11, the second lead screw 31a is disposed along the length direction of the gantry beam 11, one end of the second lead screw is in transmission connection with the third power member 31c, specifically, the second lead screw can be connected through a coupler, the other end of the second lead screw is in rotational connection with the gantry beam 11 through a bearing seat, and the second nut 31b is sleeved on the second lead screw 31a and is fixedly connected to the mounting seat 43. The third power member 31c may be a motor.

Translation mechanism 3 still includes walking subassembly 32, and walking subassembly 32 includes walking rail and walking wheel, and the walking wheel is installed on mount pad 43, and the walking rail is installed on gantry beam 11 along gantry beam 11's length direction, and walking wheel and walking rail sliding fit. Specifically, the traveling rails are divided into two types, namely a flat wheel traveling rail 32d and a V wheel traveling rail 32b, the traveling wheels are divided into two types, namely a flat wheel 32c and a V wheel 32a, wherein the flat wheel 32c is in sliding fit with the top surface of the flat wheel traveling rail 32d to play a role in supporting and traveling, the V wheel 32a is in sliding fit with the top surface of the V wheel traveling rail 32b to play a role in traveling, supporting and positioning, and the flat wheels 32c and the V wheel 32a are arranged in two groups at intervals along the length direction of the gantry beam 11 to avoid inclination of the mounting base 43. Illustratively, the flat wheel 32c includes a cylindrical roller and two limit rings disposed at both ends of the length of the cylindrical roller, and both sides of the width of the flat wheel running rail 32d are engaged in the two limit rings to prevent the flat wheel 32c from deviating from the flat wheel running rail 32d; the V-wheel 32a comprises two cylindrical rollers arranged at an included angle, correspondingly, the top surface of the V-wheel traveling rail 32b comprises two tangent planes arranged at an included angle, and the two cylindrical rollers in the V-wheel 32a are respectively in sliding fit with the two tangent planes, so that the mounting seat 43 can be further prevented from deviating from the length direction of the gantry beam 11. It will be appreciated that the V-wheel 32a may also be an integrally formed single groove V-wheel.

Referring to fig. 1, the upright post 12 is mainly formed by welding steel plates, the top end surface of the upright post is screwed with the gantry beam 11, and an installation groove 11a is formed in the gantry beam 11 in a penetrating manner along the height direction of the gantry 1 and used for installing the translation mechanism 3 and providing an avoidance space for the lifting mechanism 4 to move along the length direction of the gantry beam 11. In order to protect the lifting mechanism 4 and the translation mechanism 3 from dust, a motor protection housing and a bearing protection housing are disposed in the mounting groove 11a, and a motor as the third power member 31c and a bearing seat on the second lead screw 31a may be disposed in the motor protection housing and the bearing protection housing, respectively.

Further, referring to fig. 3-4, the translation mechanism 3 further includes a stop assembly 33 for preventing the head 2 from being substantially tilted and deformed when the head 2 is subjected to a heavy load. The stop assembly 33 comprises an L-shaped stop slide rail 33b, an oilless bearing plate 33a and an L-shaped stop plate 33c, the stop slide rail 33b is arranged on the inner wall of the installation groove 11a along the length direction of the gantry beam 11 and is matched with the inner wall of the installation groove 11a to form a slide groove with an upward opening, a first end of the stop plate 33c, which is horizontally arranged, is in threaded connection with the top surface of the installation seat 43, one end of the stop plate, which is vertically arranged, is inserted into the slide groove and is in sliding fit with the stop slide rail 33b, and the oilless bearing plate 33a is arranged on one side of the stop slide rail 33b, which faces the inner wall of the installation groove 11a, so as to reduce the friction resistance between the stop slide rail 33b and the stop plate 33 c.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Fixed longmen car lifting jack, its characterized in that includes:

the portal frame (1) comprises a portal beam (11) and upright columns (12) arranged at two ends of the length of the portal beam (11);

the supporting head (2) is arranged on the gantry beam (11);

a translation mechanism (3) configured to drive the head (2) to move along a first direction;

a lifting mechanism (4) configured to drive the holding head (2) to move along a third direction;

a telescopic mechanism (5) configured to drive the head (2) to move along a second direction;

the first direction, the second direction and the third direction are perpendicular to each other.

2. The fixed gantry crane according to claim 1, wherein the telescoping mechanism (5) comprises a telescoping assembly (51) and a head-supporting frame (52), a through hole is formed in the head-supporting frame (52) along the width direction of the gantry beam (11), the head support (2) is disposed in the through hole, and the telescoping assembly (51) is configured to drive the head support (2) to extend out of or retract into the through hole.

3. The fixed gantry crane according to claim 1, wherein the lifting mechanism (4) comprises a mounting base (43), a lifting beam (42) and a lifting assembly (41), the mounting base (43) is connected with the translation mechanism (3), the lifting assembly (41) is mounted on the mounting base (43), the lifting beam (42) is connected with the supporting head (2), and the lifting assembly (41) is configured to drive the lifting beam (42) to lift along the height direction of the gantry (1).

4. A fixed gantry crane according to claim 3, wherein the mounting base (43) is open at the bottom, and the lifting beam (42) is insertable at one end into the mounting base (43) from the opening at the bottom of the mounting base (43).

5. The fixed gantry crane according to claim 4, wherein the lifting mechanism (4) further comprises a linear guide and a slider, one of the linear guide and the slider is disposed inside the mounting seat (43), the other is disposed on the lifting beam (42), and the lifting beam (42) is slidably connected with the mounting seat (43) along the height direction of the gantry (1).

6. The fixed gantry crane according to claim 1, wherein the translation mechanism (3) comprises a translation assembly (31) and a traveling assembly (32), the traveling assembly (32) comprises a traveling rail and traveling wheels, the traveling wheels are arranged on the lifting mechanism (4), the traveling rail is mounted on the gantry beam (11) along the length direction of the gantry beam (11), and the traveling wheels are in sliding fit with the traveling rail; the translation assembly (31) is configured to drive the lifting mechanism (4) to move along the length direction of the gantry beam (11).

7. The fixed gantry crane of claim 6, wherein the travel wheels comprise both flat wheels (32 c) and V-wheels (32 a), the travel rails comprise both flat wheel travel rails (32 d) and V-wheel travel rails (32 b), the flat wheels (32 c) are in sliding engagement with the flat wheel travel rails (32 d), and the V-wheels (32 a) are in sliding engagement with the V-wheel travel rails (32 b).

8. The fixed gantry crane of claim 7, wherein the V-wheel (32 a) comprises two cylindrical rollers disposed at an angle, the top surface of the V-wheel running rail (32 b) comprises two tangent planes disposed at an angle, and two of the cylindrical rollers of the V-wheel (32 a) are slidably engaged with the two tangent planes, respectively.

9. The fixed gantry crane according to claim 6, wherein the translation mechanism (3) further comprises a stop assembly (33), the stop assembly (33) comprises an L-shaped stop slide rail (33 b), an oilless bearing plate (33 a) and an L-shaped stop plate (33 c), the stop slide rail (33 b) is arranged on the gantry beam (11) along the length direction of the gantry beam (11) and is matched with the side wall of the gantry beam (11) to form a chute with an upward opening, the stop plate (33 c) is fixedly connected with the lifting mechanism (4), one end of the stop plate (33 c) which is vertically arranged is inserted into the chute, and the oilless bearing plate (33 a) is arranged on one side of the stop slide rail (33 b) facing the side wall of the gantry beam (11).

10. The fixed gantry crane according to any one of claims 1-9, wherein a mounting groove (11 a) is formed in the gantry beam (11) in a penetrating manner along the height direction of the gantry (1), and the translation mechanism (3) is mounted in the mounting groove (11 a).