Driving host braking torque detection tool

Abstract

The utility model discloses a driving main engine brake torque detection tool, comprising an escalator driving main engine, one end of the escalator driving main engine is provided with a driving main engine main shaft, one side of the driving main engine main shaft is fixedly connected with a flat key, and the driving main engine main shaft is sleeved with a reducing sleeve. According to the utility model, through the arrangement of the reducing sleeve, the torque transmission and torsion conditions of the main shaft in the actual working state can be simulated, the torque test is more accurate, and the connection of the reducing sleeve can reduce the risk of damage to the main shaft and a related transmission system, because the reducing sleeve can better share and transmit the torque, the test efficiency is improved. And the damage risk possibly caused by direct operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake torque detection, in particular to a tool for detecting the brake torque of a driving main machine. Background Art

[0002] In the drive host, the braking torque is very important because it determines the braking force of the drive host, thereby protecting the safety of the escalator and personnel. The torque of the brake directly affects the braking force and braking time of the drive host. The torque detection tool can be used to detect the torque of the drive host brake to ensure that they brake within the correct torque range. If the torque of the brake is too large or too small, the drive host may not be able to brake too quickly, causing people to fall, or braking too long may cause accidents, thus affecting the normal operation of the escalator. Therefore, during escalator production, the drive host brake needs to be tested.

[0003] An existing tool for detecting the braking torque of a driving main engine has a relatively simple structure. It is usually performed by screwing a bolt onto the motor shaft of the main engine and directly rotating it with a wrench for testing. During the test, the torque of the brake is felt by manual rotation. During the test, the bolt may be twisted off or broken when being twisted out, or the threaded hole may be damaged, or it may be difficult to remove the broken bolt. Utility Model Content

[0004] The technical problem to be solved by the utility model is that an existing driving host braking torque detection tool is usually screwed on the motor shaft of the host by a bolt, and a wrench is used to directly perform a rotation test, which may cause the bolt to break or damage the threaded hole.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: a drive host braking torque detection tool, including an escalator drive host, a drive host main shaft is arranged at one end of the escalator drive host, a flat key is fixedly connected to one side of the drive host main shaft, and a reducing sleeve is sleeved on the drive host main shaft.

[0006] Through the above technical solution, the driving main unit of the escalator is usually composed of a reducer and a three-phase asynchronous motor. The reducer is used to reduce the output speed of the motor and increase the output torque to meet the operation requirements of the escalator. The three-phase asynchronous motor is used as a power source, and the high-speed rotation of the motor is converted into a low-speed and high-torque output suitable for the operation of the escalator through the reducer.

[0007] The utility model is further configured that a key groove is provided on one side of the inner wall of the reducer sleeve, the key groove and the flat key cooperate with each other, and the reducer sleeve is connected to the main shaft of the driving host through the flat key.

[0008] Through the above technical solution, a hexagonal step is processed on the outer side of the reducer sleeve, which is used in conjunction with a hexagonal bolt sleeve. The hexagonal edge is equivalent to enlarging the large inner diameter of the threaded hole originally used for testing, so that a larger torque can be tested. The reducer sleeve is customized according to the size of the main shaft of the drive host.

[0009] The utility model is further configured that a connecting sleeve is sleeved on the reducing sleeve, a clamping groove is provided on the top of the connecting sleeve, and a digital torque wrench is provided on the top of the connecting sleeve.

[0010] Through the above technical solution, since the usual threaded hole specification is M12, when the braking torque is greater than 120Nm, the thread is easily damaged or the bolt is broken. However, a reducer sleeve is put on the main shaft of the driving host for detection, which simulates the actual working state of the main shaft of the driving host, has no impact on the main shaft, and better shares and transmits torque, reducing the risk of damage that may be caused by direct operation.

[0011] The utility model is further configured that an embedded ratchet head is provided at one end of the digital torque wrench, the embedded ratchet head and the engaging groove cooperate with each other, and a data display screen is provided on the digital torque wrench.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model simulates the torque transmission and torsion of the main shaft of the driving main machine under the actual working state by sleeved with a reducing sleeve on the main shaft of the driving main machine, which is closer to the actual use environment and provides more realistic test data. Compared with direct rotation test with a wrench, connecting the variable sleeve can perform torque test more safely because it simulates the real working state of the main shaft, better shares and transmits torque, and avoids the safety risks and damage risks that may exist in direct operation of the motor shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 It is the structural explosion diagram of the utility model;

[0016] Figure 3 It is a three-dimensional cross-sectional view of the reducer sleeve of the utility model.

[0017] In the figure: 1. escalator drive main unit; 2. drive main unit main shaft; 3. flat key; 4. reducer sleeve; 5. keyway; 6. connecting sleeve; 7. engaging groove; 8. digital torque wrench; 9. data display screen; 10. embedded ratchet head. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figure 1 , Figure 2 and Figure 3 A driving host braking torque detection tool comprises an escalator driving host 1, one end of the escalator driving host 1 is provided with a driving host main shaft 2, one side of the driving host main shaft 2 is fixedly connected with a flat key 3, and a reducing sleeve 4 is sleeved on the driving host main shaft 2.

[0020] A key slot 5 is provided on one side of the inner wall of the reducing sleeve 4, and the key slot 5 cooperates with the flat key 3. The reducing sleeve 4 is connected to the main shaft 2 of the driving host through the flat key 3; a connecting sleeve 6 is provided on the reducing sleeve 4, and a snap-fitting groove 7 is provided on the top of the connecting sleeve 6, and a digital torque wrench 8 is provided on the top of the connecting sleeve 6; an embedded ratchet head 10 is provided at one end of the digital torque wrench 8, and the embedded ratchet head 10 cooperates with the snap-fitting groove 7, and a data display screen 9 is provided on the digital torque wrench 8.

[0021] When the utility model is in use, the keyway 5 in the reducing sleeve 4 is facing the flat key 3 on one side of the main shaft 2 of the driving host, and the reducing sleeve 4 is pressed downward to be fixed on the main shaft 2 of the driving host, so as to simulate the actual working state of the main shaft 2 of the driving host, and the main shaft 2 of the driving host will not be affected. Then the connecting sleeve 6 is sleeved on the reducing sleeve 4, and finally the embedded ratchet head 10 at one end of the digital torque wrench 8 is inserted into the engaging groove 7 on the connecting sleeve 6. The digital torque wrench 8 is used by hand. When the digital torque wrench 8 starts to rotate, the torque value is read through the data display screen 9, and the magnitude of the moment can be measured in combination with the length of the lever arm.

[0022] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A driving main engine braking torque detection tool, comprising an escalator driving main engine (1), characterized in that: A drive main unit main shaft (2) is provided at one end of the escalator drive main unit (1), a flat key (3) is fixedly connected to one side of the drive main unit main shaft (2), and a reducer sleeve (4) is sleeved on the drive main unit main shaft (2).

2. A driving host braking torque detection tool according to claim 1, characterized in that: A keyway (5) is provided on one side of the inner wall of the reducer sleeve (4), the keyway (5) and the flat key (3) cooperate with each other, and the reducer sleeve (4) is connected to the main shaft (2) of the driving host through the flat key (3).

3. A driving host braking torque detection tool according to claim 1, characterized in that: A connecting sleeve (6) is sleeved on the reducing sleeve (4), a clamping groove (7) is provided at the top end of the connecting sleeve (6), and a digital torque wrench (8) is provided at the top end of the connecting sleeve (6).

4. A driving host braking torque detection tool according to claim 3, characterized in that: An embedded ratchet head (10) is provided at one end of the digital torque wrench (8), the embedded ratchet head (10) and the engaging groove (7) cooperate with each other, and a data display screen (9) is provided on the digital torque wrench (8).

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