Turning force testing device for elevator with machine room

Abstract

The utility model discloses a turning force testing device for an elevator with a machine room, which comprises a gear shaft, a latch meshed with a turning gear is arranged on the peripheral wall of one end of the gear shaft, a torque sensor is connected to one end, far away from the latch, of the gear shaft, and one end, far away from a sleeve, of the torque sensor is connected with a flange plate through a bolt. And the flange plate is connected with a turning handwheel. The utility model has the beneficial effects that the torque is obtained through the sensor, and the diameter of the jigger hand wheel meeting the national standard is obtained through calculation, so that the jigger hand wheel is prevented from being too large or too small.

Description

Technical Field

[0001] The utility model belongs to the field of traction machines, in particular to the field of traction machine testing, and specifically relates to a winch force testing device for an elevator with an engine room. Background Art

[0002] 5.9.2.3.3 of the national standard GB / T 7588.1 stipulates that if the manual operating force required to move the car with rated load upward is greater than 400N, a specified mechanical device must be installed. For traction machines without mechanical devices, the actual operation often uses an increased diameter of the handwheel to meet the force requirement. However, the space sizes of different elevator sites are different. An excessively large handwheel diameter will cause operational inconvenience, and therefore the handwheel force of the elevator needs to be measured in order to make the handwheel diameter as small as possible while meeting the national standard. Utility Model Content

[0003] The utility model aims to provide a device for testing the turning force of an elevator with an engine room.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A machine room elevator handwheel force testing device comprises a gear shaft, an outer peripheral wall of one end of the gear shaft is provided with a latching tooth meshing with the handwheel, an end of the gear shaft away from the latching tooth is connected to a torque sensor, an end of the torque sensor away from the sleeve is connected to a flange through bolts, and the flange is connected to a handwheel handwheel.

[0006] Preferably, the turning handwheel comprises a hollow rotating wheel and a connecting plate arranged on one side of the rotating wheel, a flange connected to the flange is arranged on the side of the connecting plate facing the flange, and a plurality of support plates for strengthening support are arranged in a circular array inside the rotating wheel.

[0007] Preferably, the cross section of the flange is a regular polygon, and a through groove matching the shape of the flange is provided at the rotation center of the flange.

[0008] Preferably, a magnetic sheet is attached to at least one of the outer peripheral wall and the end of the flange.

[0009] Preferably, a sleeve is arranged between the torque sensor and the gear shaft.

[0010] Preferably, a gear is sleeved on the outer circumferential wall of the gear shaft, and a plurality of grooves are provided in a circular array at the end of the gear shaft away from the torque sensor. The grooves penetrate the circumferential wall of the gear shaft, and a plurality of clips corresponding to the grooves are provided on the inner circumferential wall of the gear.

[0011] The beneficial effect of the utility model is that the torque of the elevator when using the turning gear is calculated by the device, and finally the minimum or appropriate size of the turning gear handwheel is obtained when the turning gear force is in accordance with the national standard, so as to avoid the inconvenience of operation caused by the turning gear handwheel being too small or the non-compliance with the national standard caused by the turning gear handwheel being too small. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model and the traction machine.

[0013] Figure 2 It is a side view of the hand wheel of the center plate car of the utility model.

[0014] Figure 3 It is a sectional view of the hand wheel of the center plate car of the utility model.

[0015] Figure 4 It is a side view of the gear shaft in the utility model.

[0016] Among them: gear shaft 10, groove 102, gear 12, sleeve 14, torque sensor 16, flange 18, turning handwheel 20, connecting plate 202, flange 204, support plate 206, runner 208, traction machine 22, turning wheel 24, turning wheel seat 26. DETAILED DESCRIPTION

[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0018] like Figures 1 to 4 As shown, the utility model is a machine room elevator handwheel force testing device, comprising a gear shaft 10, a peripheral wall of one end of the gear shaft 10 is provided with a latching tooth meshing with a handwheel 24, an end of the gear shaft 10 away from the latching tooth is connected to a torque sensor 16, the torque sensor 16 is connected to a display screen, an end of the torque sensor 16 away from the sleeve 14 is connected to a flange 18 by bolts, and the flange 18 is connected to a handwheel 20; a hole corresponding to the gear shaft 10 is opened on the handwheel seat 26 of the traction machine 22, and the gear shaft 10 is inserted into the hole The gear 12 is then meshed with the turning wheel 24, and the turning wheel handwheel 20 is used to drive the gear 12 to rotate, thereby causing the turning wheel 24 to rotate. During this process, the torque sensor 16 will measure the torque and display it on the display. The torque is calculated using the formula T=F*L, where T is the torque, that is, the value displayed on the display, L is the radius of the turning wheel handwheel, and F is the force acting on the turning wheel handwheel 20. The static torque can be calculated using this calculation method, thereby measuring the diameter range of the turning wheel handwheel 20 while meeting the national standards.

[0019] The turning handwheel 20 includes a rotating wheel 208 and a connecting plate 202 arranged on one side of the rotating wheel 208. The connecting plate 202 is provided with a flange 204 connected to the flange 18 on the side facing the flange. The rotating wheel 208 is hollow in design, and a plurality of support plates 206 for support and reinforcement are arranged in a circular array inside the rotating wheel 208. The connection is achieved by inserting the flange 204 into the flange 18, and the support plate 206 plays a supporting and reinforcing role, and makes most of the internal area of ​​the entire turning handwheel 20 hollow, which can reduce material usage and the weight of the entire device.

[0020] The cross section of the flange 204 is a regular hexagon, and a through groove matching the shape of the flange 204 is opened at the rotation center of the flange 18; the cross section of the flange 204 is a regular polygon or other angular shape, so that there is no relative rotation between the turning handwheel 20 and the flange 18, and the test result is more accurate.

[0021] A magnetic sheet is attached to at least one of the outer wall and the end of the flange 204; the magnetism of the magnetic sheet can generate mutual attraction with the flange 18, which can effectively reduce the probability of the turning hand wheel 20 falling off.

[0022] A sleeve 14 is provided between the torque sensor 16 and the gear shaft 10; the sleeve 14 is used to connect the shaft and the torque sensor 16, thereby avoiding the need to provide a notch corresponding to the torque sensor 16 at the end of the gear shaft 10, thereby reducing costs.

[0023] A gear 12 is sleeved on the outer circumferential wall of the gear shaft 10, and a plurality of grooves 102 are provided in a circular array at the end of the gear shaft 10 away from the torque sensor 16. The grooves 102 penetrate the circumferential wall of the gear shaft 10, and a plurality of clips corresponding to the grooves 102 are provided on the inner circumferential wall of the gear 12. Different specifications of traction machines 22 have different vertical distances from the holes on the turntable seat 26 to the turntable 24, that is, gears 12 of different diameters need to be replaced to mesh with the turntable 24. The grooves 102 and the clips are engaged with each other, so that the gear 12 and the gear shaft 10 are easy to disassemble, which is convenient for replacing the gear 12, and the engagement method can effectively prevent relative rotation between the gear 12 and the gear shaft 10.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A machine room elevator pan gear force testing device, characterized in that: It includes a gear shaft, and a tooth meshing with a turning gear is arranged on the outer peripheral wall of one end of the gear shaft. A torque sensor is connected to the end of the gear shaft away from the tooth. The end of the torque sensor away from the sleeve is connected to a flange through bolts, and the flange is connected to a turning gear handwheel.

2. The device for testing the panwheel force of an elevator with an engine room according to claim 1, characterized in that: The turning wheel hand wheel comprises a hollow rotating wheel and a connecting plate arranged on one side of the rotating wheel, a flange connected to the flange is arranged on the side of the connecting plate facing the flange, and a plurality of supporting plates for strengthening support are arranged in a circumferential array in the rotating wheel.

3. The device for testing the panwheel force of an elevator with an engine room according to claim 2, characterized in that: The cross section of the flange is a regular polygon, and a through groove matching the shape of the flange is provided at the rotation center of the flange.

4. The device for testing the panwheel force of an elevator with an engine room according to claim 2, characterized in that: A magnetic sheet is attached to at least one of the outer peripheral wall and the end of the flange.

5. The device for testing the panwheel force of an elevator with an engine room according to claim 1 is characterized in that: A sleeve is arranged between the torque sensor and the gear shaft.

6. The device for testing the panwheel force of an elevator with an engine room according to claim 1, characterized in that: A gear is sleeved on the outer circumferential wall of the gear shaft, and a plurality of grooves are formed in a circumferential array at the end of the gear shaft away from the torque sensor. The grooves penetrate the circumferential wall of the gear shaft, and a plurality of clips corresponding to the grooves are arranged on the inner circumferential wall of the gear.

Images