Rack butt measuring device and method

Abstract

The present application belongs to the field of coal mine machinery, and relates to a rack butt joint measuring device and a method thereof. Two racks can be quickly clamped, and the reasonable range of rack fixed installation can be controlled through an adjusting knob, so that the parallelism and straightness of the left and right sides and the upper and lower sides of the racks can be accurately adjusted, the operation difficulty is reduced, and the assembly efficiency is improved. The device is simple and portable, is beneficial to separate and scattered operation, does not need to occupy too many working sites, saves space resources, can accurately realize the clamping and adjustment of the rack butt joint, meets the size and precision requirements of the rack butt joint, and ensures the quality of the rack butt joint.

Description

Technical Field

[0001] This invention belongs to the field of coal mining machinery and relates to a rack and pinion docking measurement device and method. Background Technology

[0002] Currently, rack and pinion drives are frequently used in automated mechanical transfer devices due to their advantages of high load capacity and stability. However, limitations in rack manufacturing mean that excessively long racks cannot guarantee machining precision, necessitating the use of multiple short racks joined together. The resulting racks suffer from inconsistent tooth pitch at the joints, and the installation process requires ensuring the overall straightness and parallelism of the racks. These factors directly impact the quality and efficiency of rack and pinion drives.

[0003] During transmission, the gear and rack are subjected to significant loads, and the forces on both sides of each tooth are uneven. Failure to ensure proper rack installation will exacerbate this imbalance, causing vibrations and jamming in the transmission mechanism. In more severe cases, the gear may stall or even seize up at the rack connection point. Furthermore, unstable transmission leads to severe wear and violent vibration of the gears and rack, reducing the reliability and stability of the mechanism and increasing the risk of safety issues. The safety and stability of equipment in underground coal mines are paramount; frequent replacement of spare parts and downtime of transfer mechanisms waste significant manpower and resources.

[0004] The meshing of racks first requires ensuring the straightness and parallelism of adjacent racks. Based on this, the tooth pitch of adjacent racks is adjusted to meet design requirements. Then, pins or similar fasteners are used to secure the racks, thus achieving the meshing requirements and ensuring smooth gear-rack transmission. Therefore, the installation and fixing of the racks, as well as the adjustment of adjacent racks to meet the tooth pitch testing requirements, are crucial. Summary of the Invention

[0005] The purpose of this invention is to provide a rack and pinion meshing measurement device and method to solve the problem of severely uneven force distribution on individual teeth in rack and pinion transmission.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A rack and pinion mating measuring device includes a front baffle 1, a bridging plate 2, and a rear baffle 3. The front baffle 1 and the rear baffle 3 are connected by two bridging plates 2. The front baffle 1 is provided with a side adjustment knob 101 and an angle sensor 102. The side adjustment knob 101 is arranged perpendicular to the front baffle 1 and its lower end is connected to the front baffle 1. The angle sensor 102 is located in the middle of the front baffle 1. One bridging plate is provided at each of the left and right ends. The left bridging plate is provided with a top adjustment knob 201, a measuring block 202, a pressure sensor A203, and a pressure sensor B204. The top adjustment knob 201 is arranged perpendicular to the bridging plate 2 and its lower end is connected to the bridging plate 2. The measuring block 202 is located at the bottom of the bridging plate 2. The pressure sensor A203 is located at the bottom left side of the bridging plate 2 and is connected to the measuring block 202. The pressure sensor B204 is located at the bottom right side of the bridging plate 2 and is connected to the measuring block 202. The right-end bridge plate 2 is equipped with a top adjustment knob 201, a measuring block 202, a pressure sensor C205, and a pressure sensor D206. The top adjustment knob 201 and the measuring block 202 are arranged in the same way as the left-side bridge plate 2; the pressure sensor C205 and the pressure sensor D206 are respectively located at the bottom left and bottom right sides of the right-side bridge plate 2.

[0008] A method for connecting racks and pinions, the specific steps of which are as follows:

[0009] Step 1: Select the first rack 4 and the second rack 5 and place them on the worktable. At the same time, complete the calibration and zeroing of the sensor.

[0010] Step two: Use the measuring device of this invention to clamp the two racks and place them stably;

[0011] Step 3: The side adjustment knob 101 uses the front baffle 1 and the rear baffle 3 to press the two racks together on both sides, while reading the measured value a1 of the tilt sensor 102. The measured value a1 is adjusted to 0 to 0.01 mm.

[0012] Step 4: Operate the left top adjustment knob 201 to press the measuring block 202 against the bridge plate 2, ensuring a tight fit between the measuring block 202 and the tooth groove. Simultaneously read the measured values ​​a and b from pressure sensors A203 and B204, and record the ab values. Operate the right top adjustment knob 201 to press the measuring block 202 against the bridge plate 2, ensuring a tight fit between the measuring block 202 and the tooth groove. Simultaneously read the measured values ​​c and d from pressure sensors C205 and D206, and record the cd values. Control the top adjustment knob 201 until the calculated result |cd| of the sensor measurement value is equal to the calculated result |ab| of the sensor measurement value, indicating that the adjustment has met the straightness and parallelism requirements of the splicing of the two toothed racks.

[0013] Step four: Simultaneously, adjust the position of the second rack 5 and use a reverse gauge to check the tooth pitch at the joint of the two racks. Repeat this process to complete the docking of the remaining racks.

[0014] The beneficial effects of this invention are that by employing a rack and pinion mating measuring device and method, two racks can be quickly clamped together. Simultaneously, by adjusting a knob to control the reasonable range of rack fixing, the parallelism and straightness of the left and right sides and the top and bottom sides of the racks can be precisely adjusted, reducing operational difficulty and improving assembly efficiency. Furthermore, the rack and pinion mating measuring device and method proposed in this invention are simple and portable, facilitating individual, scattered operations without occupying too much workspace, thus saving space resources. Additionally, the rack and pinion mating measuring device and method proposed in this invention can accurately achieve the clamping and pitch adjustment of rack and pinion mating, meeting the dimensional and accuracy requirements of rack and pinion mating and ensuring the quality of rack and pinion mating. Attached Figure Description

[0015] Figure 1 This is a diagram of the overall structure of the transfer facility;

[0016] Figure 2 This is a structural diagram of the rack and pinion docking measuring device;

[0017] Figure 3 This is a schematic diagram of the front structure of the measuring device;

[0018] Figure 4 This is a schematic diagram of the back structure of the measuring device.

[0019] Explanation of reference numerals in the attached figures:

[0020] Front baffle-1, bridge plate-2, rear baffle-3, first rack-4, second rack-5, side adjustment knob-101, tilt sensor-102, top adjustment knob-201, measuring block-202, pressure sensor A-203, pressure sensor B-204, pressure sensor C-205, pressure sensor D-206. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-4 As shown, this embodiment illustrates a rack and pinion mating measuring device, which can be used to measure the mating of racks in a gear transmission device. The mating measuring device includes a front baffle 1, a bridging plate 2, and a rear baffle 3; the front baffle 1 and the rear baffle 3 are connected by two bridging plates 2.

[0023] Furthermore, the front baffle 1 is provided with a side adjustment knob 101 and a tilt sensor 102. The side adjustment knob 101 is arranged perpendicular to the front baffle 1 and its lower end is connected to the front baffle 1. The tilt sensor 102 is located in the middle of the front baffle 1.

[0024] Furthermore, one is provided at each of the left and right ends of the bridging plate 2. The left end of the bridging plate 2 is provided with a top adjustment knob 201, a measuring block 202, a pressure sensor A203, and a pressure sensor B204. The top adjustment knob 201 is arranged perpendicular to the bridging plate 2, and its lower end is connected to the bridging plate 2. The measuring block 202 is located at the bottom of the bridging plate 2. The pressure sensor A203 is located at the bottom left side of the bridging plate 2 and is connected to the measuring block 202. The pressure sensor B204 is located at the bottom right side of the bridging plate 2 and is connected to the measuring block 202.

[0025] Furthermore, the right-end bridge plate 2 is equipped with a top adjustment knob 201, a measuring block 202, a pressure sensor C205, and a pressure sensor D206. The top adjustment knob 201 and the measuring block 202 are arranged in the same manner as the left-side bridge plate 2; the pressure sensor C205 and the pressure sensor D206 are respectively located at the bottom left and bottom right sides of the right-side bridge plate 2.

[0026] This embodiment provides a rack and pinion mating method, which can be used to measure the mating of racks in a gear transmission device. The specific steps are as follows:

[0027] Step 1: Select the first rack 4 and the second rack 5 and place them on the worktable. At the same time, complete the calibration and zeroing of the sensor.

[0028] Step two: Use the measuring device of this invention to clamp the two racks and place them stably;

[0029] Step 3: The side adjustment knob 101 uses the front baffle 1 and the rear baffle 3 to press the two racks together on both sides, while reading the measured value a1 of the tilt sensor 102. The measured value a1 is adjusted to 0 to 0.01 mm.

[0030] Step 4: Operate the left top adjustment knob 201 to press the measuring block 202 against the bridge plate 2, ensuring a tight fit between the measuring block 202 and the tooth groove. Simultaneously read the measured values ​​a and b from pressure sensors A203 and B204, and record the ab values. Operate the right top adjustment knob 201 to press the measuring block 202 against the bridge plate 2, ensuring a tight fit between the measuring block 202 and the tooth groove. Simultaneously read the measured values ​​c and d from pressure sensors C205 and D206, and record the cd values. Control the top adjustment knob 201 until the calculated result |cd| of the sensor measurement value is equal to the calculated result |ab| of the sensor measurement value, indicating that the adjustment has met the straightness and parallelism requirements of the splicing of the two toothed racks.

[0031] Step four: Simultaneously, adjust the position of the second rack 5 and use a reverse gauge to check the tooth pitch at the joint of the two racks. Repeat this process to complete the docking of the remaining racks.

[0032] In summary, the device and method of this embodiment can quickly clamp two racks, and by adjusting the knob, the reasonable range of rack fixing can be controlled, allowing for precise adjustment of the parallelism and straightness of the left and right sides and the top and bottom sides of the racks. This reduces operational difficulty and improves assembly efficiency. Furthermore, the rack-gear mating measuring device and method proposed in this invention are simple and portable, suitable for individual, scattered operations, and do not require a large workspace, saving space resources. Additionally, the rack-gear mating measuring device and method proposed in this invention can accurately achieve the clamping and pitch adjustment of rack-gear mating, meeting the dimensional and precision requirements of rack-gear mating and ensuring the quality of rack-gear mating.

[0033] It should be noted that references to "an embodiment," "an embodiment," "an example embodiment," "some embodiments," etc., in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but each embodiment may not necessarily include said specific features, structures, or characteristics. Furthermore, such phrases do not necessarily refer to the same embodiment. Additionally, when a specific feature, structure, or characteristic is described in connection with an embodiment, whether explicitly described or not, implementing such a feature, structure, or characteristic in conjunction with other embodiments will be within the knowledge of those skilled in the art.

[0034] The prior description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rack and pinion mating measuring device, characterized in that, include: Measuring blocks 202, in at least two quantities, are used to be placed in the two slots of the rack; The bridging plate 2 is disposed opposite to the rack and in contact with the measuring block 202, and the contact surface between the measuring block 202 and the rack is higher than the tooth surface of the rack; At least two pressure sensors are provided. The pressure sensors are installed on the bridge plate 2 and are in contact with the measuring block 202 in the tooth groove. The top adjustment button 201 is used to adjust the relative position of the bridge plate 2 and the rack to change the pressure of the measuring block 202 and the tooth groove.

2. The rack and pinion mating measuring device according to claim 1, characterized in that, include: A baffle is arranged parallel to the side of the rack, and the bridging plate 2 is fixedly connected to the baffle. The baffle is provided with an angle sensor 102 and a side adjustment knob 101, which is used to adjust the coupling degree between the baffle and the rack.

3. The rack and pinion mating measuring device according to claim 2, characterized in that, There are two baffles, which are arranged parallel to each other along the two sides of the rack.

4. The rack and pinion mating measuring device according to claim 1, characterized in that, The two ends of the bridging plate 2 are located on the two racks to be connected.

5. The rack and pinion mating measuring device according to claim 1, characterized in that, There are two bridging plates 2, namely a first bridging plate and a second bridging plate, which are respectively disposed on the two racks to be connected; The first bridge plate is provided with pressure sensor A203 and pressure sensor B204, and pressure sensor A203 and pressure sensor B204 are respectively in contact with two measuring blocks 202 in the tooth groove; The second bridge board is equipped with pressure sensor C205 and pressure sensor D206, which are in contact with two measuring blocks 202 in the tooth groove, respectively.

6. A method for connecting racks and pinions, characterized in that, include: Place the two racks to be docked on the worktable; Two measuring blocks 202 are placed on the tooth grooves of the two racks to be connected respectively; A bridging plate 2 is set on each of the two racks to be connected, so that the bridging plate 2 is in contact with the measuring block 202; Measure the pressure value between the bridge plate 2 and the measuring block 202; Adjust the position of the racks to be connected so that the pressure difference between one of the bridge plates 2 and the two measuring blocks 202 is equal to the pressure difference between the other bridge plate 2 and the other two measuring blocks 202.

7. A rack and pinion connection method according to claim 6, characterized in that, include: A pressure sensor is installed at the position where the bridging plate mates with the two measuring blocks 202.

8. A rack and pinion connection method according to claim 6, characterized in that, include: Two baffles are provided on both sides of the rack, with the two ends of the baffles located on the two racks to be connected. The bridging plate 2 is connected to the baffles. An inclination sensor 102 is provided on one of the baffles. The relative position of the two racks to be connected is adjusted so that the value of the inclination sensor 102 is within a preset range.

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