CN210555204U

CN210555204U - Lifting device for truck cab

Info

Publication number: CN210555204U
Application number: CN201921178997.4U
Authority: CN
Inventors: 战永嘉; 阮永喜
Original assignee: Longkou Tongli Automobile Components Manufacturing Co ltd
Current assignee: Longkou Tongli Automobile Components Manufacturing Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-19
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a lifting device for a truck cab, which comprises a motor, a base component and a sliding component; the base component comprises an upper fixing plate, a lower fixing plate and guide posts which are connected with the upper fixing plate and the lower fixing plate, wherein at least two guide posts are arranged, the end parts of the guide posts, which are positioned on the lower fixing plate, penetrate through the lower fixing plate, the lower lug plate is arranged at the end parts of the guide posts, a lower roller bearing is arranged in the center of the lower fixing plate, an upper roller bearing is arranged in the center of the upper fixing plate, one end of a screw rod is arranged on the upper roller bearing, the other end of the screw rod is arranged on the lower roller bearing and penetrates through the lower roller bearing, a follow-up gear is arranged at the end part of the screw rod, which penetrates through the lower roller bearing. The utility model provides a simple structure, the stroke is big, the lifting device that the reliability is high can realize 35 degrees electric lifting system that can normally work below zero.

Description

Lifting device for truck cab

Technical Field

The utility model relates to a lifting device for truck driver's cabin belongs to lifting mechanism technical field.

Background

At present, most of the known truck driving lifting systems are composed of hydraulic lifting cylinders and ball screw lifters. The hydraulic lifting system consists of a lifting cylinder, an electric pump, a manual pump, a reversing control valve, an oil pipe, a wiring harness and the like. The ball screw lifter is composed of a motor, a gear, a ball screw, a wire harness and the like. The hydraulic lifting of the truck cab is realized by connecting an electric pump with an automobile storage battery through a wiring harness, controlling high-pressure oil generated by the electric pump or a manual pump to enter a lifting oil cylinder through a control valve, and driving the cab to lift up and down through the up-and-down movement of a piston rod of the lifting oil cylinder. The ball screw is lifted by a motor which is connected with a storage battery through a wire harness, and the motor rotates an electric gear to drive the ball screw to rotate so as to push the cab to ascend and descend. However, the two lifters have complicated structures and high cost. When the hydraulic lifter is below 35 ℃ below zero, the hydraulic lifter fails to work, sealing elements are damaged, oil leaks, and the environment is polluted. The ball screw lifts, the ball screw does not self-lock in the processes of ascending and descending, and the cab naturally slides down.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the problem of the cost of manufacture height and the poor stability of current hydraulic cylinder family planning system is solved to power to and in order to realize 35 degrees normal work below zero, provide a lifting device for truck driver's cabin.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a lifting device for a truck cab is characterized by comprising a motor, a base assembly and a sliding assembly, wherein the motor is arranged on the base assembly, and the sliding assembly is connected with the base assembly; the base component comprises an upper fixing plate, a lower fixing plate and guide posts which are connected with the upper fixing plate and the lower fixing plate, wherein at least two guide posts are arranged, the end parts of the guide posts, which are positioned on the lower fixing plate, penetrate through the lower fixing plate, the lower lug plate is arranged at the end parts of the guide posts, a lower roller bearing is arranged at the center of the lower fixing plate, an upper roller bearing is arranged at the center of the upper fixing plate, one end of a screw rod is arranged on the upper roller bearing, the other end of the screw rod is arranged on the lower roller bearing and penetrates through the lower roller bearing, a follow-up gear is arranged at the end part of the screw rod, a motor gear, a primary gear and a secondary gear are arranged between the lower fixing plate and the lower lug plate, the primary gear and the. According to the technical scheme, the lifting function is realized mainly by adopting a mechanical structure, so that the lifting device is not limited by environmental conditions and can still realize the function under the low-temperature condition.

On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:

furthermore, the sliding assembly comprises a nut sliding block, the nut sliding block is provided with a central threaded hole, a fixing hole and a sliding hole, the fixing hole and the sliding hole surround the threaded hole, the nut sliding block is in threaded connection with the lead screw, and the nut sliding block is located between the upper fixing plate and the lower fixing plate; the guide posts are inserted into sliding holes of the screw sliding block, one end of the lifting push rod is fixed in a fixing hole of the screw sliding block, the lifting push rod penetrates through a guide sliding hole in the upper fixing plate, an upper push plate is arranged at the end of the lifting push rod, the floating pull rod is inserted on the upper push plate, an upper lug plate is arranged at the end of the floating pull rod, lifting lugs are arranged on the upper lug plate, and the number of the lifting push rods is at least two.

Furthermore, the number of the guide columns is three or four, the number of the lifting push rods is three or four, and the lifting push rods of the guide columns are arranged at intervals.

Furthermore, an upper limit switch and a lower limit switch are installed on the screw nut sliding block.

Furthermore, a manual worm is arranged between the lower fixing plate and the lower lug plate, and the manual worm is meshed with the motor gear. The manual worm can realize the continuous work of the lifting device when the motor cannot work.

Furthermore, a buffer slide block is arranged between the nut slide block and the upper fixing plate, and the buffer slide block is sleeved on the guide post.

Furthermore, an aluminum alloy upper shield is arranged on the periphery of the upper lug plate, an aluminum alloy lower shield is arranged on the peripheries of the upper push plate and the nut slide block, and a gear shield is arranged on the peripheries of the lower fixing plate and the lower lug plate.

Furthermore, a lower lifting lug is arranged on the lower lifting lug plate.

The utility model has the advantages that: the lifting function, the suspension function and the manual lifting function are complete, the structure is simple, and the reliability is high; the lifting effective stroke is large, the suspension system is stable and reliable, and no failure risk exists; the whole lifting system has light weight, environmental protection in the using process, no environmental pollution, energy conservation and emission reduction; the lifting force is large, and the service life is ultra-long; the product is free from maintenance and has no subsequent use cost; the lifting device can be normally used at low temperature below 35 ℃ below zero, and can be suitable for lifting tilting cabs of various trucks.

Drawings

FIG. 1 is a schematic view of a lifting device for a truck cab according to the present application;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the mounting housing of the lifting device of FIG. 1;

fig. 4 is a cross-sectional view of the nut runner.

The reference numbers are recorded as follows: 1-motor, 2-manual worm, 3-motor gear, 4-primary gear, 5-secondary gear, 6-lower lifting lug, 7-lower roller bearing, 8-lower lifting lug plate, 9-lower fixing plate, 10-guide post, 11-upper roller bearing, 12-upper lifting lug plate, 13-upper lifting lug, 14-floating pull rod, 15-upper push plate, 16-lifting push rod, 17-upper fixing plate, 18-lead screw, 19-upper limit switch, 20-nut slider, 21-lower limit switch, 22-aluminum alloy upper shield, 23-aluminum alloy lower shield and 24-buffer slider.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

A lifting device for a truck cab (see figures 1-4), a motor 1, a base assembly and a sliding assembly, wherein the motor 1 is mounted on the base assembly, and the sliding assembly is connected with the base assembly; the base component comprises an upper fixing plate 17, a lower fixing plate 9 and guide posts 10 connecting the upper fixing plate 17 and the lower fixing plate 9, at least two guide posts 10 are arranged, the guide posts 10 are positioned at the end part of the lower fixing plate 9 and penetrate through the lower fixing plate 9, a lower lug plate 8 is arranged at the end part of each guide post 10, a lower roller bearing 7 is arranged at the center of the lower fixing plate 9, an upper roller bearing 11 is arranged at the center of the upper fixing plate 17, one end of a screw rod 18 is arranged at the upper roller bearing 17, the other end of the screw rod 18 is arranged at the lower roller bearing 7 and penetrates through the lower roller bearing 7, a follower gear is arranged at the end part of the screw rod 18 penetrating through the lower roller bearing 7, a, the motor comprises a primary gear 4 and a secondary gear 5, wherein the primary gear 4 and the secondary gear 5 are coaxially arranged, a motor gear 3 is meshed with the primary gear 4, the secondary gear 5 is meshed with a follow-up gear, and the motor gear 3 is arranged on an output shaft of a motor 1; the sliding assembly comprises a nut sliding block 20, the nut sliding block 20 is provided with a central threaded hole, a fixing hole and a sliding hole, the fixing hole and the sliding hole surround the threaded hole, the nut sliding block 20 is in threaded connection with the lead screw 18, and the nut sliding block 20 is located between the upper fixing plate 17 and the lower fixing plate 9; the guide post 10 is inserted in a sliding hole of the nut sliding block 20, one end of a lifting push rod 16 is fixed in a fixing hole of the nut sliding block 20, the lifting push rod 16 passes through a guide sliding hole on an upper fixing plate 17 and is provided with an upper push plate 15 at the end part, a floating pull rod 14 is inserted on the upper push plate 15, an upper lug plate 12 is arranged at the end part of the floating pull rod 14, a lifting lug 13 is arranged on the upper lug plate 12, and at least two lifting push rods 16 are arranged; three or four guide posts 10 are provided, three or four lifting push rods 16 are provided, and the lifting push rods 16 of the guide posts 10 are arranged at intervals; an upper limit switch 19 and a lower limit switch 21 are arranged on the nut sliding block 20; a manual worm 2 is arranged between the lower fixing plate 9 and the lower lug plate 8, and the manual worm 2 is meshed with the motor gear 3; a buffer slide block 24 is arranged between the nut slide block 20 and the upper fixing plate, and the buffer slide block 24 is sleeved on the guide post 10; an aluminum alloy upper shield 22 is arranged on the periphery of the upper lug plate 12, an aluminum alloy lower shield 23 is arranged on the peripheries of the upper push plate 15 and the nut slider 20, and a gear shield is arranged on the peripheries of the lower fixing plate 9 and the lower lug plate 8; and the lower lifting lug plate 8 is provided with a lower lifting lug 6.

The functions of the present application are realized by the following processes: the motor is connected with an automobile storage battery through a wire harness and an electric cabinet, the electric cabinet controls the ascending and descending to be started, and the upper limit switch and the lower limit switch control the ascending and descending stroke and the stop of the motor. The system is connected with a cab through a lower lifting lug and an upper lifting lug respectively on a vehicle frame, a motor is connected with a lead screw (a T-shaped lead screw is selected in the embodiment) through a primary gear reduction system and a secondary gear reduction system, and the lead screw is arranged in a frame structure consisting of 4 guide posts, a lower fixing plate, an upper cylindrical roller bearing and a lower cylindrical roller bearing. The motor rotates to drive the screw rod to rotate through a secondary speed reducing system, and the screw rod rotates to drive the lifting module consisting of the nut slide block (the T-shaped nut slide block is selected in the embodiment), the 4 lifting push rods and the upper push plate to move up and down. The electric lifting system realizes accurate control of up-and-down motion by attaching an electric cabinet and an upper limit switch and a lower limit switch.

Lifting the cab: when the lifting module rises to the upper limit, the upper limit switch is triggered, the motor stops rotating, the lifting module stops rising, and therefore the cab lifting action is completed.

Descending the cab: when the motor rotates reversely and the lifting module moves downwards, the floating pull rod is pulled to pull the cab connected with the upper lifting lug plate and the upper lifting lug to turn over the center of gravity of the cab, the cab is supported to move downwards at a constant speed, when the cab falls to the cab lock to stop moving downwards, the lifting module continues to move downwards for 20mm to touch the lower limit switch, the motor stops rotating, the lifting module stops falling, and a space for the cab to float up and down when the vehicle normally runs is reserved.

The electric lifting system adopts the transmission of the trapezoidal lead screw and the nut, and the trapezoidal thread has the self-locking function, so that the cab can be ensured to stop at any position in the lifting and descending processes, the cab does not automatically fall down, and the safety is ensured.

The electric lifting system realizes the up-and-down suspension of the cab and the return tension required by the falling and turning over of the cab through the floating pull rod which can float up and down and is connected on the upper lifting lug and the upper lifting lug plate under the driving state.

This electronic lifting system rotates the manual worm that lifts that links to each other with motor power output gear through manual external rocker, realizes that unexpected accident's car storage battery does not have the electricity or the motor damages the time manual automobile driver's cabin that lifts.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting device for a truck cab is characterized by comprising a motor (1), a base assembly and a sliding assembly, wherein the motor (1) is installed on the base assembly, and the sliding assembly is connected with the base assembly; the base component comprises an upper fixing plate (17), a lower fixing plate (9) and guide posts (10) connected with the upper fixing plate (17) and the lower fixing plate (9), wherein at least two guide posts (10) are arranged, the end parts of the guide posts (10) located on the lower fixing plate (9) penetrate through the lower fixing plate (9), lower lug plates (8) are arranged at the end parts of the guide posts (10), a lower roller bearing (7) is arranged at the center of the lower fixing plate (9), an upper roller bearing (11) is arranged at the center of the upper fixing plate (17), one end of a lead screw (18) is arranged on the upper roller bearing (11), the other end of the lead screw (18) is arranged on the lower roller bearing (7) and penetrates through the lower roller bearing (7), a follow-up gear is arranged at the end part of the lead screw (18) penetrating through the lower roller bearing (7), a motor gear (3), a primary gear (4) and a secondary gear (, the primary gear (4) and the secondary gear (5) are coaxially mounted, the motor gear (3) is meshed with the primary gear (4), the secondary gear (5) is meshed with the follow-up gear, and the motor gear (3) is mounted on an output shaft of the motor (1).

2. The lifting device for the truck cab as claimed in claim 1, wherein the sliding assembly comprises a nut slider (20), the nut slider (20) has a central threaded hole and a fixing hole and a sliding hole surrounding the threaded hole, the nut slider (20) is in threaded connection with the lead screw (18), and the nut slider (20) is located between the upper fixing plate (17) and the lower fixing plate (9); the guide post (10) is inserted in a sliding hole of the screw nut sliding block (20), one end of the lifting push rod (16) is fixed in a fixing hole of the screw nut sliding block (20), the lifting push rod (16) penetrates through a guide sliding hole in the upper fixing plate (17) and an upper push plate (15) is installed at the end part of the lifting push rod, the floating pull rod (14) is inserted in the upper push plate (15), an upper lug plate (12) is installed at the end part of the floating pull rod (14), a lifting lug (13) is installed on the upper lug plate (12), and at least two lifting push rods (16) are arranged.

3. Lifting device for the cab of a truck according to claim 2, characterized in that there are three or four of said guide posts (10), three or four of said lifting pushers (16), the lifting pushers (16) of the guide posts (10) being spaced apart.

4. Lifting device for the cab of a truck according to claim 3, characterized in that the nut runner (20) is provided with an upper limit switch (19) and a lower limit switch (21).

5. Lifting device for truck cabs according to claim 1, characterized in that a manual worm (2) is mounted between the lower fixing plate (9) and the lower lug plate (8), the manual worm (2) being engaged with the motor gear (3).

6. The lifting device for the truck cab as claimed in claim 2, wherein a buffer slide block (24) is installed between the nut slide block (20) and the upper fixing plate, and the buffer slide block (24) is sleeved on the guide post (10).

7. The lifting device for the truck cab as claimed in claim 2, wherein an aluminum alloy upper shield (22) is arranged on the periphery of the upper lug plate (12), an aluminum alloy lower shield (23) is arranged on the periphery of the upper push plate (15) and the nut slider (20), and a gear shield is arranged on the periphery of the lower fixing plate (9) and the lower lug plate (8).

8. Lifting device for the cab of a truck according to claim 1, characterised in that the lower lug plate (8) is provided with a lower lug (6).