A helical tooth gap testing device

Abstract

The utility model discloses a helical tooth gap testing arrangement relates to helical swing oil cylinder technical field, aiming at the problem of the background art that because some piston specifications are smaller, lead to plug gauge inconveniently to plug into the piston inside and measure the helical tooth gap of piston inside, practicality is low, present the following scheme, including base and mounting mechanism, the mounting mechanism includes the top plate, the clamping assembly is equipped with below the top plate, the clamping assembly includes two two -way screws and two clamping blocks respectively through bearing connection in the top outer wall of base, the base top is equipped with the limiting mechanism, the limiting mechanism includes the baffle, support block and two slide rails through the bolt connection on the top outer wall of base. The utility model can be more convenient to the helical tooth of the piston inside of smaller specification and measure, can measure the piston of different specifications simultaneously, improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of helical swing cylinder technology, and in particular to a helical tooth backlash testing device. Background Technology

[0002] A helical oscillating cylinder is a special type of hydraulic cylinder that uses a helical pair with a large helix angle to achieve rotary motion. Through the engagement of the helical threads, the linear motion of the piston is converted into the oscillating motion of the output shaft. Its significant feature is its extremely high efficiency. The longer the linear motion of the piston, the greater the rotary motion. This cylinder is a tightly assembled component that uses hydraulics to generate very high torque in a very small space.

[0003] Based on existing technology, in the production process of helical swing cylinders, it is necessary to measure the tooth clearance of the helical teeth on the piston of the helical swing cylinder. Usually, a feeler gauge is used to measure the helical tooth clearance. However, due to the small size of some pistons, it is not convenient for the feeler gauge to be inserted into the piston and measure the helical tooth clearance inside the piston, resulting in low practicality. Utility Model Content

[0004] This invention provides a helical tooth backlash testing device, which solves the problem in the prior art that due to the small size of some pistons, it is not easy to insert a feeler gauge into the piston to measure the helical tooth backlash inside the piston, resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A helical tooth backlash testing device includes a base and a mounting mechanism. The mounting mechanism includes a top plate, and a clamping assembly is provided below the top plate. The clamping assembly includes two bidirectional screws respectively connected to the outer wall of the top of the base via bearings, and two clamping blocks respectively screwed to the outer walls at both ends of the two bidirectional screws. A limiting mechanism is provided on the top of the base. The limiting mechanism includes a baffle bolted to the outer wall of the top of the base, a support block bolted to the outer wall of the top of the base, and two slide rails respectively bolted to the outer wall of the top of the support block. An adjustment assembly is provided on the support block. The adjustment assembly includes a fixing block and two... The components include a slider bolted to the bottom outer wall of the fixed block, a servo motor bolted to one side outer wall of the fixed block, a rotating shaft connected to one end of the servo motor output shaft via a coupling, and a mounting ring connected to the outer wall of one end of the rotating shaft via a pin. The mounting ring is equipped with a measuring component, which includes a turntable with two arc-shaped channels on each of its two outer walls, four extension rods slidably mounted on the outer wall of the mounting ring, four adjusting rods fixed to the outer walls of the four extension rods, an arc-shaped connecting block, a mounting block bolted to the outer wall of the connecting block, and a measuring block bolted to the outer wall of the mounting block.

[0007] Preferably, two support plates are bolted to the top outer wall of the base, and the top plate is bolted to the top outer wall of the two support plates respectively.

[0008] Preferably, the upper parts of the two bidirectional screws are respectively connected to the top outer wall of the top plate through bearings, and the upper outer walls of the two bidirectional screws are each connected to a synchronous pulley by a pin. The two synchronous pulleys are connected to each other by a synchronous belt. Four limiting rods are fixed on the top outer wall of the base, and the top ends of the four limiting rods are respectively fixed on the bottom outer wall of the top plate. The two clamping blocks are respectively slidably installed on the outer walls of the four limiting rods.

[0009] The above method involves rotating one of the bidirectional screws, which, via a timing belt, causes the other bidirectional screw to rotate synchronously. This causes the two clamping blocks to move closer together, and then the two clamping blocks clamp the piston of the helical swing cylinder to be measured.

[0010] Preferably, one end of the support block is bolted to the outer wall of one side of the baffle, and one end of each of the two slide rails abuts against the outer wall of one side of the baffle.

[0011] Preferably, the two sliders are slidably mounted on the outer walls of the two slide rails, and one end of the rotating shaft passes through and is slidably sleeved on the outer wall of the baffle.

[0012] Preferably, the two turntables are rotatably mounted inside the mounting ring, and the two turntables are fastened to the mounting ring by bolts. The four adjusting rods are slidably mounted in the four channels, and the four extension rods are bolted to the outer walls on both sides of the connecting block.

[0013] The above method involves selecting a standard measuring block and mounting block corresponding to the piston's specifications. Then, the fixed block is moved so that the measuring block engages with the helical teeth on the piston's inner wall. A servo motor is started, and its output shaft drives the rotating shaft, mounting ring, mounting block, and measuring block to rotate. Simultaneously, the measuring block moves along the helical teeth on the piston's inner wall. During this movement, existing equipment is used to detect the measuring block's movement path, generating a curve showing the corresponding movement and rotation. This curve is then compared with the curve of a standard helical swing cylinder of the corresponding specifications. The connecting block is removed, and one of the turntables is rotated, causing the extension rod to move. By replacing the connecting block, mounting block, and measuring block, pistons of different specifications can be measured.

[0014] The beneficial effects of this utility model are as follows:

[0015] Select a standard measuring block and mounting block corresponding to the piston specifications. Then, move the fixed block so that the measuring block engages with the helical teeth on the piston's inner wall. Start the servo motor, and the servo motor output shaft drives the rotating shaft, mounting ring, mounting block, and measuring block to rotate. At the same time, the measuring block moves along the helical teeth on the piston's inner wall. During the movement, use existing equipment to detect the movement path of the measuring block and obtain the corresponding curve of the measuring block's movement and rotation. Compare this curve with the curve of the standard helical swing cylinder of the corresponding specifications. Remove the connecting block, rotate one of the turntables, and the turntable moves the extension rod. By replacing the connecting block, mounting block, and measuring block, pistons of different specifications can be measured. This method can conveniently measure the helical teeth inside smaller pistons and can measure pistons of different specifications, improving practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of a spiral tooth gap testing device proposed in this utility model.

[0017] Figure 2 This is a front view structural diagram of the mounting mechanism of a spiral tooth gap testing device proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the main structure of the clamping assembly of a spiral tooth backlash testing device proposed in this utility model.

[0019] Figure 4 This is a front view schematic diagram of the limiting mechanism of a spiral tooth gap testing device proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the main structure of the adjustment component of a spiral tooth gap testing device proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the main structure of the measuring component of a spiral tooth gap testing device proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Mounting mechanism; 201. Support plate; 202. Top plate; 3. Clamping assembly; 301. Bidirectional screw; 302. Clamping block; 303. Limiting rod; 4. Limiting mechanism; 401. Baffle; 402. Support block; 403. Slide rail; 5. Adjusting assembly; 501. Fixing block; 502. Slider; 503. Servo motor; 504. Rotating shaft; 505. Mounting ring; 6. Measuring assembly; 601. Turntable; 602. Extension rod; 603. Adjusting rod; 604. Connecting block; 605. Mounting block; 606. Measuring block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figure 1-3 A helical tooth backlash testing device includes a base 1 and a mounting mechanism 2. The mounting mechanism 2 includes a top plate 202. Two support plates 201 are bolted to the top outer wall of the base 1. The top plate 202 is bolted to the top outer wall of the two support plates 201. A clamping assembly 3 is provided below the top plate 202. The clamping assembly 3 includes two bidirectional screws 301 connected to the top outer wall of the base 1 by bearings and two clamping blocks 302 screwed to the outer walls at both ends of the two bidirectional screws 301. The upper parts of the two bidirectional screws 301 pass through and are connected to the top outer wall of the top plate 202 by bearings. The upper outer walls of the two bidirectional screws 301 are each connected to a synchronous pulley by a pin. The two synchronous pulleys are connected to each other by a synchronous belt. Four limiting rods 303 are fixed on the top outer wall of the base 1. The top ends of the four limiting rods 303 are fixed to the bottom outer wall of the top plate 202. The two clamping blocks 302 are slidably installed on the outer walls of the four limiting rods 303.

[0025] Example 2, refer to Figure 4-6A helical tooth backlash testing device further includes a limiting mechanism 4. The limiting mechanism 4 includes a baffle 401 bolted to the top outer wall of the base 1, a support block 402 bolted to the top outer wall of the base 1, and two slide rails 403 bolted to the top outer wall of the support block 402. One end of the support block 402 is bolted to one side outer wall of the baffle 401, and one end of each slide rail 403 abuts against one side outer wall of the baffle 401. An adjustment component is provided on the support block 402. 5. The adjusting assembly 5 includes a fixed block 501, two sliders 502 respectively bolted to the bottom outer wall of the fixed block 501, a servo motor 503 bolted to one side outer wall of the fixed block 501, a rotating shaft 504 connected to one end of the output shaft of the servo motor 503 via a coupling, and a mounting ring 505 connected to one end of the outer wall of the rotating shaft 504 via a pin. The two sliders 502 are slidably mounted on the outer walls of the two slide rails 403 respectively, and one end of the rotating shaft 504 passes through and is slidably sleeved on the stop. On the outer wall of plate 401, a measuring component 6 is provided at the mounting ring 505. The measuring component 6 includes two turntables 601, each with two arc-shaped channels on its outer wall; four extension rods 602, each slidably mounted on the outer wall of the mounting ring 505; four adjusting rods 603, each fixed to the outer wall of the four extension rods 602; an arc-shaped connecting block 604; a mounting block 605 bolted to the outer wall of the connecting block 604; and a measuring block 606 bolted to the outer wall of the mounting block 605. The two turntables 601 are rotatably installed inside the mounting ring 505. The two turntables 601 are fastened to the mounting ring 505 by bolts. The four adjusting rods 603 are slidably installed in the four channels. The four extension rods 602 are connected to the outer walls of the two sides of the connecting block 604 by bolts. The mounting block 605 and the measuring block 606 are standard parts of the corresponding piston specifications. The outer diameter of the mounting block 605 is adapted to the inner diameter of the piston. The specifications of the measuring block 606 are adapted to the tooth clearance of the piston's helical teeth.

[0026] Working principle: Rotating one of the bidirectional screws 301 causes the other bidirectional screw 301 to rotate synchronously via a timing belt. This causes the two clamping blocks 302 to move closer together, clamping the piston of the helical swing cylinder to be measured. A standard measuring block 606 and mounting block 605 of the corresponding piston specifications are selected. Then, the fixed block 501 is moved so that the measuring block 606 engages with the helical teeth on the inner wall of the piston. The servo motor 503 is started, and its output shaft drives the rotating shaft 504 and the mounting ring. 505. The mounting block 605 and measuring block 606 rotate, while the measuring block 606 moves along the helical teeth on the inner wall of the piston. During the movement, the movement path of the measuring block is detected using existing equipment, and the corresponding curve of the movement and rotation of the measuring block is obtained and compared with the curve of the standard helical swing cylinder of the corresponding specification. The connecting block 604 is removed, and one of the turntables 601 is rotated. The turntable 601 causes the extension rod 602 to move. By replacing the connecting block 604, mounting block 605 and measuring block 606, pistons of different specifications can be measured.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A helical tooth backlash testing device, comprising a base (1) and a mounting mechanism (2), characterized in that, The installation mechanism (2) includes a top plate (202); The top plate (202) is provided with a clamping assembly (3) below it. The clamping assembly (3) includes two bidirectional screws (301) that are respectively connected to the outer wall of the top of the base (1) by bearings and two clamping blocks (302) that are respectively screwed to the outer walls of the two bidirectional screws (301). The base (1) is provided with a limiting mechanism (4) at the top. The limiting mechanism (4) includes a baffle (401) bolted to the outer wall of the top of the base (1), a support block (402) bolted to the outer wall of the top of the base (1), and two slide rails (403) bolted to the outer wall of the top of the support block (402). The support block (402) is provided with an adjustment component (5). The adjustment component (5) includes a fixed block (501), two sliders (502) respectively bolted to the bottom outer wall of the fixed block (501), a servo motor (503) bolted to one side outer wall of the fixed block (501), a rotating shaft (504) connected to one end of the output shaft of the servo motor (503) by a coupling, and a mounting ring (505) connected to one end of the outer wall of the rotating shaft (504) by a pin. The mounting ring (505) is provided with a measuring component (6), which includes two turntables (601) with two arc-shaped channels on their outer walls, four extension rods (602) that are slidably mounted on the outer wall of the mounting ring (505), four adjusting rods (603) that are fixed on the outer wall of the four extension rods (602), an arc-shaped connecting block (604), a mounting block (605) that is bolted to the outer wall of the connecting block (604), and a measuring block (606) that is bolted to the outer wall of the mounting block (605).

2. The helical tooth backlash testing device according to claim 1, characterized in that, The base (1) has two support plates (201) connected to its top outer wall by bolts, and the top plate (202) is connected to the top outer wall of the two support plates (201) by bolts respectively.

3. The helical tooth backlash testing device according to claim 1, characterized in that, The upper parts of the two bidirectional screws (301) are respectively connected to the top outer wall of the top plate (202) through bearings, and the upper outer walls of the two bidirectional screws (301) are connected to synchronous pulleys by pins. The two synchronous pulleys are connected to each other by synchronous belts. The top outer wall of the base (1) is fixed with four limiting rods (303), and the top ends of the four limiting rods (303) are respectively fixed on the bottom outer wall of the top plate (202). The two clamping blocks (302) are respectively slidably installed on the outer walls of the four limiting rods (303).

4. The helical tooth backlash testing device according to claim 1, characterized in that, One end of the support block (402) is bolted to the outer wall of the baffle (401), and one end of each of the two slide rails (403) abuts against the outer wall of the baffle (401).

5. The helical tooth backlash testing device according to claim 1, characterized in that, The two sliders (502) are slidably mounted on the outer walls of the two slide rails (403), and one end of the rotating shaft (504) passes through and is slidably sleeved on the outer wall of the baffle (401).

6. The helical tooth backlash testing device according to claim 1, characterized in that, The two turntables (601) are rotatably installed in the mounting ring (505), and the two turntables (601) are fastened to the mounting ring (505) by bolts. The four adjusting rods (603) are slidably installed in the four channels, and the four extension rods (602) are bolted to the outer walls on both sides of the connecting block (604).

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