Device and method for lifting spare tire by telescopic cylinder

Abstract

The present invention discloses a device and method for lifting a spare tire by a telescopic oil cylinder, comprising: a lifting rope made of steel wire; a supporting lifting assembly, one end of which is detachably fixed on a telescopic working arm of the vehicle, and one end of which is suspended above the spare tire; one end of the lifting rope is fixed to a telescopic section of a telescopic oil cylinder that drives the telescopic working arm to extend and retract, and the end of the lifting rope is movably displaced and installed on the supporting lifting assembly for suspension, and the suspended lifting rope is wrapped and tied with the spare tire for fixing when in use. Since the telescopic working arm is provided by the vehicle itself, the lifting rope can be movably displaced on the supporting lifting assembly under the drive of the telescopic working arm, so that the spare tire can be lifted, and there is no need to install a motor to retract and release the lifting rope in order to achieve lifting, which solves the problem that the prior art needs to increase the motor power, which increases the load and affects the maximum effective utilization of the space structure of the working vehicle.

Description

Technical Field

[0001] The invention relates to a device and a method for lifting a spare tire by using a telescopic oil cylinder, belonging to the technical field of lifting. Background Art

[0002] For a vehicle, a rolling tire is one of the most important moving parts. A vehicle needs to carry a spare tire. For a heavy-duty working vehicle, sometimes in order to achieve a better layout and maximize the use of the working vehicle space structure, a spare tire 53 is suspended and installed on the frame 52 below the telescopic working arm 54 on the right side of the vehicle 51. The suspension installation point is about 900 mm from the ground. The spare tire weighs about 110 kg. Figure 1 When replacing and installing the spare tire, due to the limited location of the spare tire, it is not convenient for multiple people to move around. Within the limited manpower, it is difficult to lift the spare tire weighing 110 kg to the installation position, and it is difficult to accurately align the installation hole and tighten the spare tire bolts to fix it.

[0003] In China, a spare tire mounting mechanism for an ambulance is disclosed with a patent publication number of CN204355178U. Although the disclosed motor and suspension wire can lift the spare tire of the ambulance, the spare tire of the ambulance is generally a passenger car tire, weighing 25 to 40 kg; and the spare tire of a heavy-duty work vehicle weighs about 110 kg, and the power of the motor used needs to be increased. The increase in motor power will lead to an increase in the coil winding of the motor, and the size and weight of the motor will inevitably increase, which increases the load for the heavy-duty work vehicle. At the same time, since the large-sized motor needs to accommodate a large-sized motor space, the maximum effective utilization of the spatial structure of the work vehicle is affected. In order to meet the increase in the electrical energy of the power motor, a power converter needs to be installed on the heavy-duty work vehicle, which further increases the load and affects the spatial structure of the vehicle. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a device for lifting a spare tire with a telescopic cylinder.

[0005] The invention also provides a method for lifting a spare tire.

[0006] The present invention is achieved through the following technical solutions.

[0007] The present invention provides a device for lifting a spare tire with a telescopic cylinder, comprising:

[0008] A lifting rope made of steel wire;

[0009] A support lifting assembly, one end of which is detachably fixed on the telescopic working arm of the vehicle, and one end of which is suspended above the spare tire; one end of a lifting rope is fixed to the telescopic section of the telescopic cylinder that drives the telescopic working arm to extend and retract, and the end of the lifting rope is movably installed and suspended on the support lifting assembly, and the suspended lifting rope is wrapped around and tied to the spare tire when in use.

[0010] The supporting lifting assembly includes a supporting lifting bracket for supporting the lifting, a fixing seat fixedly connected to the supporting lifting bracket, a transverse pulley rotatably installed on the fixed end of the supporting lifting bracket via a rotating shaft, and a longitudinal pulley rotatably installed on the suspended end of the supporting lifting bracket via a rotating shaft; the lifting rope is firstly wound around the transverse pulley and then wound around the longitudinal pulley for hanging, so that the lifting rope can be movably displaced and installed on the supporting lifting assembly for hanging.

[0011] The fixing seat is fixedly connected to the supporting lifting bracket via screws and spring washers.

[0012] The transverse pulley rotation axis is perpendicular to the longitudinal pulley rotation axis

[0013] The fixing seat is welded and fixed on the telescopic working arm, and the supporting lifting bracket is fixedly connected to the fixing seat via screws and spring washers, so that one end of the supporting lifting assembly can be detachably fixed on the telescopic working arm.

[0014] The end of the lifting rope that is not fixed to the spare tire is fixed with a sleeve, and the sleeve is convenient for sleeve-fitting and fixing with the hinge point at the telescopic end of the telescopic oil cylinder.

[0015] The method for lifting a spare tire using the above-mentioned device for lifting a spare tire using a telescopic oil cylinder comprises the following steps:

[0016] Step 1: The support lifting bracket is fixedly connected to the fixing seat through screws and spring washers. The fixing seat is welded to the telescopic working arm of the vehicle. One end of the lifting rope is connected and fixed to the hinge point of the telescopic end of the telescopic oil cylinder on the telescopic working arm through a sleeve. The other end of the lifting rope is wrapped around the transverse pulley and then around the longitudinal pulley to be tied and fixed to the spare tire.

[0017] Step 2: Control the telescopic cylinder on the telescopic working arm to extend, drive the lifting rope to lift upward on the transverse pulley and the longitudinal pulley, so that the lifting rope drives the spare tire to lift upward, thereby controlling the lifting height of the spare tire.

[0018] In the step 1, the telescopic working arm is in a horizontal state.

[0019] The beneficial effect of the present invention is that since the telescopic working arm is provided by the vehicle itself, the lifting rope can be moved on the supporting lifting assembly under the drive of the telescopic working arm, so as to realize the lifting of the spare tire. There is no need to install a motor to retract and release the lifting rope to realize the lifting, which solves the problem of the prior art that the motor power needs to be increased, which increases the load and affects the maximum effective utilization of the spatial structure of the working vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure in which the spare tire suspension is installed on the vehicle;

[0021] Figure 2 It is a structural schematic diagram of the device of the present invention in use state;

[0022] Figure 3 It is a structural schematic diagram of the device of the present invention in an assembled state;

[0023] In the figure: 4-lifting rope; 11-support lifting bracket; 12-screw; 13-spring washer; 14-fixing seat; 15-transverse pulley; 16-longitudinal pulley; 41-casing; 51-vehicle; 52-frame; 53-spare tire; 54-telescopic working arm; 55-telescopic cylinder. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0025] like Figures 2 to 3 shown.

[0026] A device for lifting a spare tire with a telescopic cylinder of the present invention comprises:

[0027] A lifting rope made of steel wire 4;

[0028] A support lifting assembly, one end of which is detachably fixed on the telescopic working arm 54 of the vehicle 51, and one end of which is suspended above the spare tire 53; one end of a lifting rope 4 is fixed to the telescopic section of the telescopic oil cylinder 55 that drives the telescopic working arm 54 to extend and retract, and the other end of the lifting rope 4 is movably installed and suspended on the support lifting assembly, and the suspended lifting rope 4 is wrapped around and tied to the spare tire 53 when in use.

[0029] Since the telescopic working arm 54 is built into the vehicle 51 itself, the lifting rope 4 can be moved on the supporting lifting assembly under the drive of the telescopic working arm 54, so as to lift the spare tire 53. There is no need to install an additional motor to retract and extend the lifting rope 4 to achieve lifting. This solves the problem that the prior art needs to increase the motor power, which increases the load and affects the maximum effective utilization of the spatial structure of the working vehicle.

[0030] The supporting lifting assembly includes a supporting lifting bracket 11 for supporting the lifting, a fixing seat 14 fixedly connected to the supporting lifting bracket 11 via screws 12 and spring washers 13, a transverse pulley 15 rotatably installed at the fixed end of the supporting lifting bracket 11 via a rotating shaft, and a longitudinal pulley 16 rotatably installed at the suspended end of the supporting lifting bracket 11 via a rotating shaft, and the rotation axis of the transverse pulley 15 is perpendicular to the rotation axis of the longitudinal pulley 16; the lifting rope 4 is firstly wound around the transverse pulley 15 and then wound around the longitudinal pulley 16 for hanging, so that the lifting rope 4 can be movably displaced and installed on the supporting lifting assembly for hanging.

[0031] The fixing seat 14 is welded and fixed on the telescopic working arm 54 , and the supporting lifting bracket 11 is fixedly connected to the fixing seat 14 via screws 12 and spring washers 13 , so that one end of the supporting lifting assembly can be detachably fixed on the telescopic working arm 54 .

[0032] The end of the suspension rope 4 that is not fixed to the spare tire 53 is welded or tied to a sleeve 41, and the sleeve 41 is convenient for sleeve fixing with the hinge point of the telescopic end of the telescopic oil cylinder 55.

[0033] When the spare tire 53 is not lifted daily, the sleeve 41 of the lifting rope 4 is separated from the telescopic cylinder 55, and the supporting lifting bracket 11 is not fixedly connected with the fixing seat 14, and is stored in the accessory box.

[0034] When the spare tire 53 needs to be lifted, the method for lifting the spare tire using the above-mentioned device for lifting the spare tire using a telescopic oil cylinder includes the following steps:

[0035] Step 1: The support lifting bracket 11 is fixedly connected to the fixing seat 14 through the screw 12 and the spring washer 13. The fixing seat 14 is welded to the telescopic working arm 54 of the vehicle 51. One end of the lifting rope 4 is sleeved and fixed to the telescopic end hinge point of the telescopic oil cylinder 55 on the telescopic working arm 54 through the sleeve 41. The other end of the lifting rope 4 is wound around the transverse pulley 15 and then around the longitudinal pulley 16 and tied and fixed to the spare tire 53. At this time, the telescopic working arm 54 is preferably in a horizontal state;

[0036] Step 2: Control the telescopic cylinder 55 on the telescopic working arm 54 to extend, drive the lifting rope 4 to lift upward on the transverse pulley 15 and the longitudinal pulley 16, so that the lifting rope 4 drives the spare tire 53 to lift upward, thereby controlling the height of the spare tire 53. The operator holds the spare tire 53 to control the direction, accurately aligns it with the installation hole, and tightens the spare tire bolts to fix it.

[0037] Since the telescopic working arm 54 is provided by the vehicle 51 itself, the lifting rope 4 can lift the spare tire 53 under the telescopic drive of the telescopic oil cylinder 55, and there is no need to install an additional motor to retract and release the lifting rope 4.

Claims

1. A method for lifting a spare tire by a telescopic cylinder, characterized in that: The device for lifting the spare tire using a telescopic cylinder is completed; The device for lifting the spare tire by the telescopic cylinder comprises: A lifting rope made of steel wire (4); A support and lifting assembly, one end of which is detachably fixed to a telescopic working arm (54) provided on the vehicle (51), and one end of which is suspended above the spare tire (53); one end of a lifting rope (4) is fixed to a telescopic section of a telescopic oil cylinder (55) for driving the telescopic working arm (54) to extend and retract, and the end of the lifting rope (4) is movably displaceably mounted and suspended on the support and lifting assembly; The supporting and lifting assembly comprises a supporting and lifting bracket (11), a fixing seat (14) fixedly connected to the supporting and lifting bracket (11), a transverse pulley (15) rotatably mounted on the fixed end of the supporting and lifting bracket (11), and a longitudinal pulley (16) rotatably mounted on the suspended end of the supporting and lifting bracket (11); the lifting rope (4) is firstly wound around the transverse pulley (15) and then wound around the longitudinal pulley (16) for hanging, so that the lifting rope (4) can be movably displaced and installed on the supporting and lifting assembly for hanging; The fixing seat (14) is welded and fixed on the telescopic working arm (54), and the supporting and lifting bracket (11) is fixedly connected to the fixing seat (14) via screws (12) and spring washers (13), so that one end of the supporting and lifting assembly can be detachably fixed on the telescopic working arm (54); The method comprises the following steps: Step 1: The support lifting bracket (11) is fixedly connected to the fixing seat (14) through screws (12) and spring washers (13); the fixing seat (14) is welded to the telescopic working arm (54) of the vehicle (51); one end of the lifting rope (4) is connected and fixed to the telescopic end hinge point of the telescopic oil cylinder (55) on the telescopic working arm (54) through a sleeve (41); the other end of the lifting rope (4) is wound around the transverse pulley (15) and then around the longitudinal pulley (16) and wrapped and tied with the spare tire (53); Step 2: Control the telescopic oil cylinder (55) on the telescopic working arm (54) to extend, drive the lifting rope (4) to be lifted upward on the transverse pulley (15) and the longitudinal pulley (16), so that the lifting rope (4) drives the spare tire (53) to be lifted upward, thereby controlling the height of the spare tire (53).

2. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: The fixing seat (14) is fixedly connected to the supporting lifting bracket (11) via screws (12) and spring washers (13).

3. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: The rotation axis of the transverse pulley (15) and the rotation axis of the longitudinal pulley (16) are perpendicular.

4. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: A sleeve (41) is fixed to the end of the suspension rope (4) that is not fixed to the spare tire (53).

5. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: The transverse pulley (15) is rotatably mounted on the fixed end of the supporting lifting bracket (11) via a rotating shaft.

6. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: The longitudinal pulley (16) is rotatably mounted on the suspended end of the supporting lifting bracket (11) via a rotating shaft.

7. The method for lifting a spare tire by a telescopic cylinder according to claim 1, characterized in that: In the step 1, the telescopic working arm (54) is in a horizontal state.

Images