CN217765528U

CN217765528U - Lifting braking capacity detection device

Info

Publication number: CN217765528U
Application number: CN202222573608.6U
Authority: CN
Inventors: 万当; 魏曦光; 林金钳; 许竞; 吴晓梅
Original assignee: Fujian Special Equipment Inspection and Research Institute
Current assignee: Fujian Special Equipment Inspection and Research Institute
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-11-08
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to the field of detection devices, in particular to a lifting braking capacity detection device, which comprises a fixing device, a locking device and a measuring device, wherein the fixing device comprises a clamping ring and a driving assembly, the clamping ring comprises two clamping parts, and the driving assembly controls the two clamping parts to clamp a mechanical moving assembly to be detected; the locking device is connected with the fixing device, electrically connected with the measuring device and used for opening or releasing the limitation on the clamping of the clamping part; the measuring device is connected with the clamping ring and is electrically connected with the machinery needing to be detected. When in measurement, the clamping part clamps the steel wire rope and moves downwards along with the steel wire rope, and the measuring device measures data such as downward movement distance, time, speed and the like; when the device is not used for measurement, the locking device opens the limitation on the clamping of the clamping part, and the clamping part cannot clamp the steel wire rope to influence daily use. Meanwhile, the measuring device acts immediately after accurately receiving the braking signal and controls the locking device to be released at the same time, so that the measured data are more accurate.

Description

Lifting braking capacity detection device

Technical Field

The utility model relates to a detection device field especially relates to a play to rise braking capability detection device.

Background

The braking performance of a hoisting mechanism of a large-scale hoisting machine is a key safety issue concerned in the industry. At present, the braking performance of the crane is usually verified by measuring the braking glide quantity and the glide speed of a rated load, and the testing method can be generally carried out only when the crane is first checked and accepted. Especially, large cranes and special cranes often do not have the condition of checking the brake glide quantity and the glide speed in daily use, the difficulty and the cost for preparing special test loads and matching devices are high, and the test process influences the normal production work to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the lifting braking capacity detection device is convenient to use in daily life and simple in structure.

In order to solve the technical problem, the utility model discloses a technical scheme be: a lifting braking capacity detection device comprises a fixing device, a locking device and a measuring device, wherein the fixing device comprises a clamping ring and a driving assembly, the clamping ring comprises two clamping parts, and the driving assembly controls the two clamping parts to clamp a mechanical moving assembly to be detected; the locking device is connected with the fixing device, the locking device is electrically connected with the measuring device, and the locking device opens or releases the limitation on the clamping of the clamping part; the measuring device is arranged on a fixing component of the machine to be detected, the measuring device is connected with the clamping ring, and the measuring device is electrically connected with the machine to be detected.

Furthermore, the clamping ring comprises a pin shaft, and the tail ends of the two clamping parts are hinged with the pin shaft; the fixing device comprises handles, and the tail ends of the two clamping parts are respectively connected with the handles; the driving assembly comprises a spring, and the spring is arranged between the two handles.

Furthermore, the locking device comprises a locking rod and a locking pin, the two clamping parts are respectively provided with the locking rod, the two locking rods extend oppositely, and the locking rod is provided with a locking hole; the locking pin passes through both locking holes simultaneously.

Further, the locking device further comprises an electromagnetic hook connected with the locking pin; the electromagnetic hook is used for controlling the locking pin to be far away from the locking hole.

Further, the measuring device comprises a stay wire encoder, and the stay wire encoder is connected with the clamping ring through a stay wire.

Furthermore, the two stay wire encoders are arranged and are respectively connected with the two clamping parts through stay wires.

Furthermore, a magnetic suction seat is arranged on the measuring device and is adsorbed on a metal structure of a mechanical fixing component to be detected.

Furthermore, the measuring device is provided with a display screen, and the display screen is used for displaying the moving distance, time and speed of the clamping ring.

Further, the measuring device further comprises a main body, a first connecting rod and a second connecting rod; the first connecting rod is connected with a fixing component of machinery required to be detected, the second connecting rod is hinged to the first connecting rod, and one end, far away from the first connecting rod, of the second connecting rod is connected with the main body.

The beneficial effects of the utility model reside in that: taking a crane as an example, a measured moving assembly is a steel wire rope, the limitation on clamping of the clamping part is removed through a locking device during measurement, the driving assembly controls the clamping part to clamp the steel wire rope, and then the clamping part moves downwards along with the steel wire rope, so that the measuring device measures data such as downward movement distance, time, speed and the like; when the device is not used for measurement, the locking device opens the limitation on the clamping of the clamping part, and the clamping part cannot clamp the steel wire rope to influence daily use. Meanwhile, the measuring device is electrically connected with the machinery needing to be detected, so that the measuring device can act immediately after accurately receiving the braking signal and simultaneously control the locking device to be released, and the measured data is more accurate.

Drawings

Fig. 1 is a schematic structural diagram of a lifting braking capability detecting apparatus according to an embodiment of the present invention after a fixing device is engaged with a locking lever;

fig. 2 is a schematic view of the engagement between the snap ring of the lifting braking capability detecting apparatus and the steel wire rope of the crane according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of the lifting braking capability detecting apparatus according to the embodiment of the present invention after the measuring apparatus is engaged with the electromagnetic hook and the locking pin;

fig. 4 is a schematic structural diagram of the lifting braking capability detecting apparatus according to the embodiment of the present invention after the electromagnetic hook and the locking pin are engaged.

Description of the reference symbols:

1. a fixing device; 11. a snap ring; 111. a fastening part; 112. a pin shaft; 12. a spring; 13. a handle;

2. a locking device; 21. a locking lever; 22. a locking hole; 23. an electromagnetic hook; 24. a locking pin;

3. a measuring device; 31. a stay wire encoder; 32. a display screen; 33. a magnetic suction base; 34. a first link; 35. a second link;

4. a steel cord.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 4, a lifting braking capability detecting device includes a fixing device 1, a locking device 2 and a measuring device 3, where the fixing device 1 includes a clamping ring 11 and a driving assembly, the clamping ring 11 includes two clamping portions 111, and the driving assembly controls the two clamping portions 111 to clamp a mechanical moving assembly to be detected; the locking device 2 is connected with the fixing device 1, the locking device 2 is electrically connected with the measuring device 3, and the locking device 2 opens or releases the limitation of clamping the clamping part 111; the measuring device 3 is arranged on a fixing component of machinery required to be detected, the measuring device 3 is connected with the clamping ring 11, and the measuring device 3 is electrically connected with the machinery required to be detected.

From the above description, the beneficial effects of the utility model reside in that: taking a crane as an example, the measured moving component is a steel wire rope 4, the limitation on clamping of the clamping part 111 is removed through the locking device 2 during measurement, the driving component controls the clamping part 111 to clamp the steel wire rope 4, and then the clamping part 111 moves downwards along with the steel wire rope 4, so that the measuring device 3 measures data such as downwards moving distance, time, speed and the like; when not measuring, the locking device 2 opens the restriction of the clamping of the engaging portion 111, and the engaging portion 111 does not clamp the wire rope 4 and affect daily use. Meanwhile, the measuring device 3 is electrically connected with the machinery needing to be detected, so that the measuring device 3 acts immediately after accurately receiving the braking signal and simultaneously controls the locking device 2 to be released, and the measured data are more accurate.

Further, the snap ring 11 includes a pin 112, and the ends of the two engaging portions 111 are hinged to the pin 112; the fixing device 1 comprises a handle 13, and the tail ends of the two clamping parts 111 are respectively connected with the handle 13; the driving assembly comprises a spring 12, and the spring 12 is arranged between the two handles 13.

As can be seen from the above description, in combination with the arrangement of the pin 112 and the handle 13, the driving assembly is in the form of the spring 12, and no additional power mechanism is needed, so that when the locking device 2 releases the limitation of clamping the engaging portions 111, the two engaging portions 111 can rotate oppositely along the pin 112 to clamp the mechanical moving assembly to be detected, and the structure is simple and the clamping is reliable.

Further, the locking device 2 includes a locking rod 21 and a locking pin 24, the two engaging portions 111 are both provided with the locking rod 21, the two locking rods 21 extend oppositely, and the locking rod 21 is provided with a locking hole 22; the locking pin 24 passes through both locking holes 22 simultaneously.

As can be seen from the above description, the locking pin 24 simultaneously passes through the locking holes 22 of the two locking levers 21 by the cooperation of the locking levers 21 and the locking pins 24, so that the two locking levers 21 cannot move relatively, and thus the two engaging portions 111 cannot be engaged.

Further, the locking device 2 further comprises an electromagnetic hook 23, and the electromagnetic hook 23 is connected with a locking pin 24; the electromagnetic hook 23 serves to control the locking pin 24 away from the locking hole 22.

As is apparent from the above description, the measuring device 3 receives a mechanical brake signal to be detected, and operates the electromagnetic hook 23 to move the locking pin 24 away from the locking hole 22, thereby releasing the clamping restriction of the clamping portion 111 by the locking device 2 during measurement.

Further, the measuring device 3 comprises a stay wire encoder 31, and the stay wire encoder 31 is connected with the snap ring 11 through a stay wire.

As can be seen from the above description, the simple pull encoder 31 is adopted, the pull wire is elongated by the movement of the snap ring 11 clamped on the moving component to be detected during the measurement, and the pull encoder 31 measures the elongation distance, time and speed of the pull wire.

Further, two of the string encoders 31 are provided, and the two string encoders 31 are connected to the two engaging portions 111 by strings, respectively.

As can be seen from the above description, two sets of measurement data can be measured by connecting the two stay wire encoders 31 to the different engaging portions 111, the measurement device 3 integrates and corrects the data on the two engaging portions 111, and the measurement error is reduced by the multiple sets of data, thereby ensuring the accuracy of the measurement.

Further, a magnetic suction seat 33 is arranged on the measuring device 3, and the magnetic suction seat 33 is adsorbed on a metal structure of a mechanical fixing component to be detected.

As can be seen from the above description, the installation form of the magnetic suction seat 33 is adopted to facilitate the rapid assembly and disassembly of the measuring device 3.

Further, a display screen 32 is arranged on the measuring device 3, and the display screen 32 is used for displaying the moving distance, time and speed of the snap ring 11.

As can be seen from the above description, the display on the display screen 32 facilitates the operator to quickly perform the recording evaluation on the measurement data.

Further, the measuring device 3 further includes a main body, a first link 34 and a second link 35; the first connecting rod 34 is connected with a fixed component of a machine needing to be detected, the second connecting rod is hinged with the first connecting rod 34, and one end, far away from the first connecting rod 34, of the second connecting rod 35 is connected with the main body.

As can be seen from the above description, the main body, the first link 34 and the second link 35 are arranged, so that the position of the main body can be adjusted and fixed by rotation according to the actual installation position, and the operation and observation of the operator are facilitated.

Referring to fig. 1 to 4, a first embodiment of the present invention is:

the utility model discloses an use the scene: the difficulty that current large-scale hoisting device need prepare special test load and supporting device is big, the expense is high at the testing process, and the testing process influences normal operation and still need dismantle all kinds of subassemblies after the test and just can resume normal operation.

As shown in fig. 1 to 4, the lifting braking capability detection apparatus of the present embodiment includes a fixing apparatus 1, a locking apparatus 2, and a measuring apparatus 3. The locking device 2 is connected with the fixing device 1, the locking device 2 is electrically connected with the measuring device 3, and the locking device 2 opens or releases the limitation of clamping the clamping part 111; the measuring device 3 is electrically connected to the machine to be tested.

As shown in fig. 1 and 4, the fixing device 1 includes a snap ring 11, a driving assembly and a handle 13, the snap ring 11 includes two clamping portions 111 and a pin 112, and the driving assembly includes a spring 12; the locking device 2 includes a locking lever 21, a locking plate, a locking pin 24, and an electromagnetic hook 23.

The ends of the two clamping parts 111 are hinged with the pin shaft 112 together, the ends of the two clamping parts 111 are connected with the handles 13, and the spring 12 is connected between the two handles 13.

In the present embodiment, two locking levers 21 are provided on the handle 13, respectively. Alternatively, the lock lever 21 may be provided on the engagement portion 111, and the same effect can be obtained; however, in order to avoid the interference with the engagement of the engaging portion 111 and the movement of the mechanical moving component to be detected, it is preferable to provide the lock lever 21 at the handle 13.

The two locking rods 21 extend oppositely, the front ends of the locking rods 21 are provided with locking plates, locking holes 22 are formed in the locking plates, and a locking pin 24 penetrates through the two locking holes 22 simultaneously; the electromagnetic hook 23 is connected with the locking pin 24, and the electromagnetic hook 23 is electrically connected with the measuring device 3; when the measuring device 3 receives a mechanical braking signal to be detected, the electromagnetic hook 23 controls the locking pin 24 to move away from the locking hole 22.

Optionally, the front end of the locking rod 21 may be directly provided with the locking hole 22, but the thickness of the locking plate is smaller than that of the locking rod 21, so that the processing of the hole is more convenient, the reduction of the thickness can avoid the situation that the locking pin 24 needs to be too far to penetrate through the two locking holes 22 at the same time, the moving stroke of the locking pin 24 is reduced, and the limitation on the clamping of the clamping part 111 is favorably and rapidly opened or released.

As shown in fig. 3, the measuring device 3 includes a main body, a first connecting rod 34, a second connecting rod 35 and a magnetic suction seat 33, the magnetic suction seat 33 is adsorbed to the metal structure of the fixing component of the machine to be detected, the first connecting rod 34 is connected to the magnetic suction seat 33, one end of the first connecting rod 34 away from the magnetic suction seat 33 is hinged to the second connecting rod 35, and one end of the second connecting rod 35 away from the first connecting rod 34 is connected to the main body, so that the main body can be adjusted and fixed in multiple angles; the main part is provided with two stay wire encoders 31, a display screen 32 and a controller, the controller is connected with the stay wire encoders 31 and the display screen 32, and the controller is electrically connected with the mechanical device required to be detected.

As shown in FIG. 1, two pull wire encoders 31 are respectively connected with the two handles 13 through pull wires. Alternatively, the encoder 31 may be connected to the engaging portion 111.

After the machine to be detected sends out a braking signal, the locking device 2 releases the limitation on the clamping of the clamping part 111, the clamping part 111 clamps the moving component of the machine to be detected under the action of the driving component, then the moving component drives the clamping ring 11 to move, and the stay wire encoder 31 records the changing distance, time and speed through the elongation of the stay wire and then displays the distance, time and speed on the display screen 32 one by one.

The two pull encoder 31 and the different engaging portion 111 are designed to obtain multiple sets of data for integrated calibration to avoid errors caused by small data amount.

The utility model discloses a theory of operation: taking the brake performance detection of the crane as an example, the magnetic suction base of the measuring device 3 is adsorbed on the metal structure of the fixed component of the crane. Then, the installer holds the fixed component and holds the handle 13, so that the spring 12 is compressed, the two clamping parts 111 are far away from each other, and the steel wire rope 4 of the crane is used as a mechanical moving component needing to be detected and penetrates between the two clamping parts 111; simultaneously, the two locking rods 21 move towards each other, the two locking holes 22 are opposite, and then the locking pin 24 of the locking device 2 is inserted into the locking holes 22; the snap ring 11 is supported by the engagement of the locking pin 24 with the locking hole 22 so as not to fall; then the locking pin 24 is manually released, the steel wire rope 4 is clamped by the clamping ring 11, and the length of the stay wire of the measuring device 3 is adjusted, so that the stay wire is in a tight state. The above steps are then repeated to reinsert the locking pin 24.

When the crane descends, the steel wire rope 4 is put down, the clamping ring 11 does not clamp the steel wire rope 4, and the steel wire rope 4 normally moves; when the measuring device 3 receives a braking signal of the crane, the electromagnetic hook 23 is electrified, so that the locking pin 24 is disengaged from the locking hole 22, and the two clamping parts 111 clamp the steel wire rope 4 under the action of the spring 12 and run together with the steel wire rope 4; at the same time, the cable of the measuring device 3 is pulled out until the cable 4 stops running. The measuring device 3 records and calculates the distance, time and speed of the change of the stay wire and displays the distance, time and speed to the display screen 32 one by one.

To sum up, the utility model provides a lifting braking capability detection device, take the hoist as an example, its measuring removal subassembly is wire rope, removes the restriction to the clamping of block portion through locking device during measurement, and drive assembly control block portion presss from both sides wire rope, and then block portion moves down along with wire rope for measuring device measures data such as distance, time, speed of moving down; when the device is not used for measurement, the locking device opens the limitation on the clamping of the clamping part, and the clamping part cannot clamp the steel wire rope to influence daily use. Meanwhile, the measuring device is electrically connected with the machinery needing to be detected, so that the measuring device can act immediately after accurately receiving the braking signal and simultaneously control the locking device to be released, and the measured data is more accurate.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. A lifting braking capacity detection device is characterized by comprising a fixing device, a locking device and a measuring device, wherein the fixing device comprises a clamping ring and a driving assembly, the clamping ring comprises two clamping parts, and the driving assembly controls the two clamping parts to clamp a mechanical moving assembly to be detected; the locking device is connected with the fixing device, the locking device is electrically connected with the measuring device, and the locking device opens or releases the limitation on the clamping of the clamping part; the measuring device is arranged on a fixing component of the machine to be detected, the measuring device is connected with the clamping ring, and the measuring device is electrically connected with the machine to be detected.

2. The lifting braking capability detection device of claim 1, wherein the snap ring comprises a pin, and the ends of the two engaging portions are hinged to the pin; the fixing device comprises handles, and the tail ends of the two clamping parts are respectively connected with the handles; the driving assembly comprises a spring, and the spring is arranged between the two handles.

3. The lifting braking capability detection device of claim 1, wherein the locking device comprises a locking rod and a locking pin, the two engaging portions are each provided with a locking rod, the two locking rods extend in opposite directions, and the locking rod is provided with a locking hole; the locking pin passes through both locking holes simultaneously.

4. The lifting braking capability detection device of claim 3, wherein the locking device further comprises an electromagnetic hook, the electromagnetic hook being connected to the locking pin; the electromagnetic hook is used for controlling the locking pin to be far away from the locking hole.

5. The lifting braking capability detection device of claim 1, wherein the measuring device comprises a pull wire encoder, and the pull wire encoder is connected to the snap ring through a pull wire.

6. The lifting braking capability detection device of claim 5, wherein there are two of the pull wire encoders, and the two pull wire encoders are respectively connected to the two engaging portions through pull wires.

7. The lifting braking capability detection device of claim 1, wherein the measuring device is provided with a magnetic attraction seat, and the magnetic attraction seat is attached to a metal structure of a fixed component of a machine to be detected.

8. The lifting braking capability detection device of claim 1, wherein the measurement device is provided with a display screen for displaying the distance, time and speed of movement of the snap ring.

9. The lifting braking capability detection device of claim 1, wherein the measuring device further comprises a main body, a first link, and a second link; the first connecting rod is connected with a mechanical fixing assembly required to be detected, the second connecting rod is hinged to the first connecting rod, and one end, far away from the first connecting rod, of the second connecting rod is connected with the main body.