A crane test platform with variable span and replaceable tracks

Abstract

The present invention discloses a crane test platform with a variable span and replaceable rails, comprising a movable support platform, a fixed support platform, and a bearing rail, wherein the movable support platform and the fixed support platform are arranged in parallel, the distance between the movable support platform and the fixed support platform is adjustable, and replaceable bearing rails are respectively arranged on the movable support platform and the fixed support platform, and the bearing rails are parallel to each other and located on the same horizontal plane. The present invention can adapt to different types of cranes by changing the span and replacing the bearing rails, and has investment savings, a wide test range, convenient operation, and safety and reliability.

Description

Technical Field

[0001] The invention belongs to the technical field of crane test equipment, and in particular relates to a crane test platform with a variable span and replaceable tracks. Background Art

[0002] As material handling equipment, cranes play an important role in industrial production. Cranes are special equipment that have extremely high requirements for safety and stability during use. Testing the performance of newly developed or newly manufactured cranes, including parameters such as lifting capacity, trolley speed, lifting speed, wheel pressure, and operating stability and safety, is of great significance for the improvement and enhancement of newly developed cranes and the performance verification of newly manufactured cranes. At present, large manufacturers have built corresponding crane test platforms for each type of crane, and the test and inspection effect is good. However, for some small-scale enterprises, building more test platforms is a heavy burden, and the resources are idle for a long time, resulting in a lot of waste.

[0003] Therefore, the key to solving the above problems is to research and develop a crane test platform that can test various technical parameters of cranes, inspect crane performance, and meet the needs of various models and tonnages. Summary of the invention

[0004] The purpose of the present invention is to provide a crane test platform with a variable span and replaceable tracks that can test various technical parameters of the crane, inspect the performance of the crane, and meet the requirements of various tonnages and different spans within the design range.

[0005] The objective of the present invention is achieved in that the present invention comprises a movable support platform, a fixed support platform and a bearing rail, wherein the movable support platform and the fixed support platform are arranged side by side and in parallel, the distance between the movable support platform and the fixed support platform is adjustable, and replaceable bearing rails are respectively arranged on the movable support platform and the fixed support platform, and the bearing rails are parallel to each other and located on the same horizontal plane.

[0006] The present invention has the following technical effects:

[0007] 1. The L-shaped gantry moves on the ground track, so that the test platform can meet the needs of cranes with different spans for testing;

[0008] 2. Different types of tracks can be replaced through the track support plate, so that the test platform can meet the test of cranes with different types of wheels;

[0009] 3. By moving the L-shaped gantry on the ground track and replacing the track, the test platform can meet the performance test requirements of cranes of various tonnages and different spans within the design range. It has a wide test range, less platform idle time, easy operation, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of a crane test platform with a variable span and replaceable tracks according to the present invention;

[0011] Figure 2 for Figure 1 Left view structural diagram;

[0012] Figure 3 A is a local enlarged schematic diagram;

[0013] In the figure: 1-gantry, 101-platform ladder, 102-driver's cab, 103-test channel, 104-guardrail, 105-ground track locking device, 2-ground power supply device, 3-ground track, 4-fixed support platform, 5-track support plate, 6-track beam, 501-fixing hole, 7-bearing track, 8-pressure plate, 9-bolt, 10-aerial power supply device. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0015] like Figure 1 As shown in FIG. 3 , the present invention includes a movable support platform, a fixed support platform 4, and a bearing rail 7. The movable support platform 1 and the fixed support platform 4 are arranged side by side and in parallel. The distance between the movable support platform and the fixed support platform 4 is adjustable. Replaceable bearing rails 7 are respectively arranged on the movable support platform and the fixed support platform 4. The bearing rails 7 are parallel to each other and are located on the same horizontal plane.

[0016] A rail-supporting beam 6 is disposed on the fixed support platform 4 , and a bearing track 7 is disposed on the top surface of the rail-supporting beam 6 .

[0017] The movable support platform is a movable gantry 1 , the legs of the gantry 1 are slidably connected to the ground track 3 , and a load-bearing track 7 is arranged on the top surface of the crossbeam of the gantry 1 .

[0018] The sliding connection is a roller sliding connection.

[0019] A track support plate 5 is arranged on the top surface of the track support beam 6 , and a bearing track 7 is arranged on the track support plate 5 .

[0020] A track support plate 5 is arranged on the top surface of the cross beam of the gantry 1 , and a bearing track 7 is arranged on the track support plate 5 .

[0021] There are various types of the bearing rail 7 , and the rail support plate 5 is provided with fixing holes 501 matching with the bearing rails 7 of different types. The bearing rail 7 is detachably connected to the rail support plate 5 through the fixing holes 501 .

[0022] There are a plurality of fixing holes, which are regularly arranged in rows and columns on the track support plate, and different load-bearing tracks are connected through fixing holes in different rows.

[0023] The bearing rail 7 is detachably connected to the rail support plate via the pressing plate 8 , the screw rod 9 , and the fixing hole 501 .

[0024] A spring washer and a flat washer are arranged between the pressing plate and the screw cap.

[0025] The fixing hole is provided with an internal thread, and the screw rod is provided with an external thread matching the internal thread.

[0026] The legs of the gantry 1 are in an "L" shape, and the long sides of the bottom of the "L"-shaped gantry legs are parallel to the ground track 3. The long sides (toes) of the "L"-shaped gantry legs are conducive to improving the anti-overturning ability and enhancing the stability.

[0027] The legs of the gantry 1 are provided with ground track locking devices 105, and the ground track locking devices 105 are used to fix the legs of the gantry on the ground tracks.

[0028] A ruler is provided on the ground track, a ruler indicator needle is provided on the gantry support leg, and position marks of different types of cranes are provided on the ruler for measuring and determining the span between the two load-bearing tracks, which is conducive to rapid adjustment.

[0029] The gantry is provided with a laser rangefinder for measuring and determining the span between the two bearing rails, which is beneficial for precise adjustment.

[0030] The gantry is provided with a platform ladder 101 , a driver's cab 102 , a test personnel passage 103 , and a guardrail 104 .

[0031] The laser rangefinder is arranged in the driver's cab, which is convenient for single-person operation and adjustment.

[0032] It comprises a ground power supply device and an aerial power supply device. The ground power supply device provides power to the gantry, and the aerial power supply device provides power to the test crane.

[0033] The working principle and working process of the present invention are as follows: the L-shaped gantry 1 is installed on the ground track 3 and obtains power through the ground power supply device 2. The driver's cab 102 can control the L-shaped gantry 1 to move on the ground track 3. When the L-shaped gantry 1 moves to a predetermined position, it is clamped on the ground track 3 by the ground track locking device 105 to fix the gantry. The support track (rail) 7 that meets the test requirements is replaced by the track support plate 5, thereby forming a test platform with a track gauge and track required for the crane test. The crane obtains power through the aerial power supply device 10 to perform a crane performance test. By moving the L-shaped gantry 1 and replacing the rail 7 that meets the test requirements by the track support plate 5, a test platform with a track gauge and track required for crane tests of different specifications can be formed to perform different types of crane tests.

Claims

1. A crane test platform with a variable span and replaceable tracks, comprising a movable support platform, a fixed support platform (4), a bearing track (7), a ground power supply device (2), and an aerial power supply device (10), wherein the ground power supply device (2) and the aerial power supply device (10) respectively provide power to a gantry (1) and a test crane; characterized in that: The movable support platform and the fixed support platform (4) are arranged side by side and in parallel. The movable support platform is a movable gantry (1). The legs of the gantry (1) are slidably connected to the ground track (3), so that the distance between the movable support platform and the fixed support platform (4) is adjustable; the legs of the gantry (1) are provided with ground track locking devices (105) for fixing the legs of the gantry (1) on the ground track (3); a track support plate (5) is provided on the top surface of the crossbeam of the gantry (1), and a bearing rail is provided on the track support plate (5). The fixed support platform (4) is provided with a track support beam (6), a track support plate (5) is provided on the top surface of the track support beam (6), and a bearing track (7) is provided on the track support plate (5); the bearing tracks (7) are parallel to each other and are located on the same horizontal plane; the bearing tracks (7) have various models, and the track support plate (5) is provided with fixing holes (501) that match the bearing tracks (7) of different models, so that the bearing tracks (7) can be detachably connected to the track support plate (5) through the fixing holes (501).

2. The variable span and replaceable track crane test platform according to claim 1 is characterized in that: The bearing rail (7) is detachably connected to the rail support plate (5) via a pressing plate (8), a screw rod (9), and a fixing hole (501).

3. The variable span and replaceable track crane test platform according to claim 1 is characterized in that: The legs of the gantry (1) are in an "L" shape, and the bottom long sides of the legs of the "L" gantry are parallel to the ground track (3).

4. The variable span and replaceable track crane test platform according to claim 1 is characterized in that: The gantry (1) is provided with a platform ladder (101), a driver's cab (102), a test passage (103), and a guardrail (104).

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