CN214359881U - Elevator load test trolley - Google Patents
Elevator load test trolley Download PDFInfo
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- CN214359881U CN214359881U CN202022621767.XU CN202022621767U CN214359881U CN 214359881 U CN214359881 U CN 214359881U CN 202022621767 U CN202022621767 U CN 202022621767U CN 214359881 U CN214359881 U CN 214359881U
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Abstract
The invention discloses an elevator load test trolley which comprises a trolley body, wherein a pressure sensor is arranged at the bottom of the trolley body and used for sensing the mass of a carried object or a weight; one end of the vehicle body is provided with a push-pull handrail; the lifting device is arranged on the trolley body and comprises a stand column connected with the bottom of the trolley body, the stand column is vertically arranged at the end, close to the push-pull armrest, of the trolley body, the upper end of the stand column is connected with a suspension arm, the suspension arm is horizontally arranged, one end of the suspension arm is connected with the upper end of the stand column, a pulley is arranged at the other end of the suspension arm, a rope is arranged on the pulley, one end of the rope is connected with a hook, the other end of the rope is wound on a winding drum, and a motor drives the winding drum to rotate; the test trolley has the advantages of being convenient for weight conveying and capable of sensing the load.
Description
Technical Field
The invention relates to the field of machinery, in particular to an elevator load test trolley.
Background
Since the implementation of elevator supervision and inspection and regular inspection rules, namely traction and forced drive elevators (including No. 1 modification list and No. 2 modification list), a balance coefficient test is changed into a B-type item during supervision and inspection, a 125% rated load brake test is added every 5 years during regular inspection, and an original speed limiter-safety clamp linkage test, a downlink brake test and the like are added, so that the proportion of a load test in inspection is greatly improved, and the requirement on the test is increased day by day.
The series of load tests not only increase the testing time, but also bring about the problem of a great deal of labor cost such as weight transportation and transportation. The factors of time and labor waste, high risk and the like in the test lead a plurality of using and maintenance units to generate certain fearing emotion, and are not beneficial to the development of elevator maintenance and inspection work.
In view of the great labor intensity of manual handling of weights block by block, most of the test units adopt a common flat car as a weight handling trolley, as shown in fig. 1. This kind of flatbed simple structure relies on the manual work to load the weight completely, and the manual work promotes to march, has only made things convenient for the whole transportation of weight to a certain extent, and is limited to reducing intensity of labour, reducing the transport risk, improving effects such as experimental security.
In another prior art, as shown in fig. 2, a track for a test car is used as a traveling mechanism, so that the problem of traveling in the face of a complex terrain or a slope during heavy load is solved, the transportation of weights is further facilitated, and the weight conveying strength is not reduced.
There is also a mechanical weight loading device, as shown in fig. 3 and 4. The automatic loading and transverse and longitudinal movement of the weights can be realized, the manual loading is completely avoided, and the carrying efficiency is greatly improved. On the one hand, however, the device has a complex structure and numerous components, and the stability of the device in practical application is questionable; on the other hand, the loading of the weight can only be carried out in situ, which is not beneficial to the problem of weight transportation.
In conclusion, the existing structures only slightly relieve the labor intensity of weight loading and carrying in respective angles, and do not really change the final problem that the test wastes time and labor. Therefore, a trolley design scheme which reduces manual participation and improves test efficiency is urgently sought.
And the test field may not have the weight to test, or the scale of weight is nonstandard, can cause the influence to the experiment.
Meanwhile, when a 125% rated load brake test of the elevator is carried out, the elevator slides downwards to generate shearing risk, so that an operator cannot enter the elevator car as much as possible when pushing the trolley into the elevator.
In view of the above problems, the present invention provides an elevator load test car, and the car is produced by the invention.
Disclosure of Invention
The invention provides an elevator load test trolley which has the characteristics of convenience in weight conveying and capability of sensing load; specifically, the invention is realized by the following technical scheme:
an elevator load test trolley comprises a trolley body, wherein one end of the trolley body is provided with a push-pull handrail; be provided with hoisting accessory on the automobile body, hoisting accessory includes the stand of being connected with the automobile body bottom, and the stand is vertical to be set up at the near push-and-pull handrail end of automobile body, and the davit is connected to the stand upper end, and the davit level sets up, and davit one end is connected with the stand upper end, is provided with the pulley on the other end, installs the rope on the pulley, and the one end of rope is connected with the couple, and the winding of the rope other end is on the reel, and the motor drives the reel and rotates.
Further, a pressure sensor is arranged at the bottom of the vehicle body and used for sensing the mass of the carried object or weight; the pressure sensor is connected with the display screen, and the analog signals output by the sensor are converted into digital signals through the A/D converter and then output to the display screen.
Furthermore, the pressure sensor is detachably connected with the vehicle body, and the pressure sensor is selected to be a strip-shaped weighbridge scale.
Further, the upright post can rotate 360 degrees around the axis of the upright post; the boom can be horizontally telescopic along its axis.
Furthermore, one end of the push-pull handrail is a connecting end, the connecting end is hinged with the vehicle body, the other end of the push-pull handrail is a holding and pulling end, and the holding and pulling end is used for holding and pulling the hand of a person.
Furthermore, a driving wheel is arranged at the bottom of the vehicle body, and a parking brake device is arranged at a driving wheel shaft.
Furthermore, the driving wheel adopts an inflatable rubber tire.
Further, a vehicle frame is arranged on the vehicle body and used for placing objects or weights.
The beneficial effect of this application lies in:
the hoisting device is used for hoisting objects or weights, so that the labor intensity of manual carrying is reduced, and the test efficiency is improved; meanwhile, the vehicle frame is arranged on the vehicle body, objects or weights are placed in the vehicle frame, the objects or weights which are carried by the vehicle frame are prevented from falling off due to oscillation, the transportation difficulty caused by terrain reasons and the like in the transportation process of the objects or weights is relieved, and the transportation efficiency is improved.
The bottom of the trolley is provided with the pressure sensor, so that the weight of an object borne by the trolley can be sensed, and even if no standard weight exists in a test site, the weight can be replaced by other weights. Meanwhile, the weight is not standard and the data accuracy of the load test is not influenced.
When the elevator is subjected to a 125% rated load brake test, an operator can push the trolley into the car without entering the car; when the push-pull handrail is used, an operator holds the holding and pulling end of the push-pull handrail, the push-pull handrail can rotate around the positive direction of the connecting end, and the holding and pulling end of the push-pull handrail is far away from a vehicle body in the horizontal direction; promote the dolly and advance, in the dolly pushes elevator car, push-and-pull handrail can round the link antiport, on the horizontal direction, push-and-pull handrail hold and draw the end and be close to the automobile body, under operating personnel does not get into elevator car's prerequisite for in the dolly whole gets into elevator car completely including push-and-pull handrail, in order to avoid bringing the shearing risk that the car sinks the production because of the elevator braking effect is not good.
Drawings
FIG. 1 is a schematic view of a conventional flatbed cart;
FIG. 2 is a schematic view of a conventional test cart;
FIG. 3 is a front view of a prior art mechanical weight loading apparatus;
FIG. 4 is a side view of a prior art mechanical weight loading apparatus;
fig. 5 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. a vehicle body; 2. a pressure sensor; 3. a display screen; 4. a weight; 5. pushing and pulling the handrail; 6. a connecting end; 7. a holding and pulling end; 8, vehicle frame; 9.a hoisting device; 10. a column; 11. a suspension arm; 12. a pulley; 13. a rope; 14. hooking; 15. a reel; 16. a motor; 17. a drive wheel; 18. a parking brake device; an A/D converter.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 5, the elevator load test trolley comprises a trolley body 1, wherein a pressure sensor 2 is arranged at the bottom of the trolley body 1 and used for sensing the mass of a carried object or a weight 4. The pressure sensor 2 is connected with the display screen 3, and analog signals output by the sensor are converted into digital signals through the A/D converter 19 and then output to the display screen 3, so that the current load can be displayed in real time, and calculation of the load during testing is facilitated. The measuring range of the pressure sensor 2 is selected to be 20-2000N, the precision is 5%, the general use requirement is met, and the stability is good.
The pressure sensor 2 is detachably connected with the bottom of the vehicle body 1. If the weight 4 for testing is the standard weight 4, the pressure sensor 2 is not needed to weigh the weight 4, and the pressure sensor 2 can be moved out of the bottom of the vehicle body 1; if the weight 4 for the test is not standard or no weight 4 is available, the weight can be replaced by other objects, and the pressure sensor 2 is needed to weigh the objects placed in the trolley.
One end of the vehicle body 1 is provided with a push-pull handrail 5 which is convenient for people to push and pull. One end of the push-pull handrail 5 is a connecting end 6, the connecting end 6 is hinged with the vehicle body 1, the other end is a holding and pulling end 7, and the holding and pulling end 7 is used for holding and pulling the hand of a person; when the push-pull handrail is used, an operator holds the holding and pulling end 7 of the push-pull handrail 5, the push-pull handrail 5 can rotate around the positive direction of the connecting end 6, and the holding and pulling end 7 of the push-pull handrail 5 is far away from the vehicle body 1 in the horizontal direction; promote the dolly and advance, in the dolly pushes elevator car, push-and-pull handrail 5 can round 6 antiport of link, on the horizontal direction, push-and-pull handrail 5 hold and draw end 7 to be close to automobile body 1, under the prerequisite that operating personnel did not get into elevator car for including push-and-pull handrail 5 in the dolly is whole gets into elevator car completely, in order to avoid bringing the shearing risk that the car sinks the production because of the elevator braking effect is not good.
In order to prevent the object or the weight 4 on the trolley from falling off, a trolley frame 8 is arranged on the trolley body 1 and used for placing the object or the weight 4.
The trolley body 1 is further provided with a lifting device 9, the lifting device 9 comprises a vertical column 10 connected with the bottom of the trolley body 1, the vertical column 10 is vertically arranged at the end, close to the push-pull handrail 5, of the trolley body 1, the upper end of the vertical column 10 is connected with a suspension arm 11, the suspension arm 11 is horizontally arranged, one end of the suspension arm 11 is connected with the upper end of the vertical column 10, and the other end of the suspension arm is provided with a pulley 12. The pulley 12 is provided with a rope 13, one end of the rope 13 is connected with a hook 14, the other end of the rope 13 is wound on a winding drum 15, and a motor 16 drives the winding drum 15 to rotate.
The upright post 10 can rotate 360 degrees around the axis thereof, so as to drive the suspension arm 11 connected to the upper end thereof to rotate; the boom 11 can be horizontally extended and retracted along its axis.
The lifting device 9 can lift the object or weight 4 into the vehicle body 1. The lifting device 9 can be operated by a handle in a remote control mode, and the maximum lifting weight is 100 kg/time.
During the use, the upright post 10 is rotated to a proper angle, the telescopic suspension arm 11 is used for hanging the object or the weight 4 on the hook 14, the motor 16 is started, the winding drum 15 is rotated, the object or the weight 4 rises, the upright post 10 is rotated, the telescopic suspension arm 11 is used for moving the object or the weight 4 to the upper side of the vehicle body 1, then the lower side of the object or the weight 4 is placed in the vehicle frame 8, the hook 14 is taken off, and the object or the weight 4 is placed.
The pressure sensor 2 at the bottom of the vehicle body 1 senses the weight of an object or a weight 4 and transmits data to the display screen 3 for display.
The parking brake device 18 is arranged at the axle of the trolley driving wheel 17, and the heavy-load trolley can be locked in the car, so that the collision between the heavy-load trolley and the car wall caused by the sliding of the trolley in the test is avoided, and the car wall is further prevented from being damaged. The driving wheel 17 is made of inflatable rubber tires to avoid damage to the car floor during heavy load.
The above is the preferred embodiment of the present invention, and several other simple substitutions and modifications made on the premise of the inventive concept should be considered as falling into the protection scope of the present invention.
Claims (8)
1. The utility model provides an elevator load test dolly which characterized in that: comprises a vehicle body, wherein one end of the vehicle body is provided with a push-pull handrail; be provided with hoisting accessory on the automobile body, hoisting accessory includes the stand of being connected with the automobile body bottom, and the stand is vertical to be set up at the near push-and-pull handrail end of automobile body, and the davit is connected to the stand upper end, and the davit level sets up, and davit one end is connected with the stand upper end, is provided with the pulley on the other end, installs the rope on the pulley, and the one end of rope is connected with the couple, and the winding of the rope other end is on the reel, and the motor drives the reel and rotates.
2. The elevator load test car of claim 1, wherein: the bottom of the vehicle body is provided with a pressure sensor used for sensing the mass of the carried object or weight; the pressure sensor is connected with the display screen, and the analog signals output by the sensor are converted into digital signals through the A/D converter and then output to the display screen.
3. The elevator load test car of claim 2, wherein: the pressure sensor is detachably connected with the vehicle body, and the pressure sensor is selected to be a strip-shaped weighbridge.
4. The elevator load test car of claim 1, wherein: the upright post can rotate 360 degrees around the axis of the upright post; the boom can be horizontally telescopic along its axis.
5. The elevator load test car of claim 1, wherein: one end of the push-pull handrail is a connecting end, the connecting end is hinged with the vehicle body, the other end of the push-pull handrail is a holding and pulling end, and the holding and pulling end is used for holding and pulling the hand of a person.
6. The elevator load test car of claim 1, wherein: the bottom of the vehicle body is provided with a driving wheel, and a parking braking device is arranged at a driving wheel shaft.
7. The elevator load test car of claim 6, wherein: the driving wheel adopts an inflatable rubber tire.
8. The elevator load test car of claim 1, wherein: the vehicle body is provided with a vehicle frame for placing objects or weights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621767.XU CN214359881U (en) | 2020-11-13 | 2020-11-13 | Elevator load test trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621767.XU CN214359881U (en) | 2020-11-13 | 2020-11-13 | Elevator load test trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214359881U true CN214359881U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022621767.XU Active CN214359881U (en) | 2020-11-13 | 2020-11-13 | Elevator load test trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214359881U (en) |
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2020
- 2020-11-13 CN CN202022621767.XU patent/CN214359881U/en active Active
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