A high-strength precision combined composite gear

Abstract

The present invention discloses a high-strength precision composite gear, comprising a rotating part and a fixed part, wherein the rotating part comprises a rotating shaft, a rotating wheel unit and a limiting unit, wherein the circumferential surface of the rotating wheel unit comprises a plurality of teeth distributed in a circular ring shape with equal spacing, and the limiting unit comprises a plurality of wedge blocks distributed in a circular ring shape with equal spacing; the fixed part comprises a fixed circular ring, a movable circular ring and a driving cylinder, wherein the movable circular ring is provided with a plurality of limiting plugs capable of abutting the wedge blocks to limit the rotation of the limiting unit. The gear of the present application has a circular base plate component that can be disassembled and easily replaced when the wear is more serious, thereby reducing maintenance costs. A sensing unit is provided, and the composite gear can be monitored by the sensing unit when it rotates. When the composite gear is detected to be reversed, the driving limiting plug is inserted into the limiting slot, thereby preventing reversal and protecting the detection head at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of gears, and in particular relates to a high-strength precision combined composite gear. Background Art

[0002] Gears are mechanical components with teeth on the edge of a wheel that can continuously mesh and transmit motion and power through the meshing of the teeth. The rotation of the gear drives the rotation of other toothed mechanical components that mesh with it, which can achieve functions such as changing the speed and torque. Gears have high transmission efficiency and are widely used in industrial production, playing an important role in the quality of industrial products.

[0003] Existing gears are generally driven by motors. During actual operation, the motor may reverse in the event of a sudden power outage or overload. When the gear reverses, the rotating shaft will also reverse accordingly, causing the gear to rotate in the opposite direction. If the staff cannot detect and prevent the gear from reversing in time, the reversal will cause damage to important components in the gear, affecting the service life of the gear, and even causing the gear to be damaged and unable to operate normally, which will have adverse consequences on the quality of the products being produced and cause significant economic losses. In addition, gear reversal will also cause unpredictable safety accidents, posing a huge safety hazard. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provide a high-strength and precise composite gear.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gear, comprising a rotating part and a fixed part, the rotating part comprising a rotating shaft, a rotating wheel unit fixedly connected to the rotating shaft, and a limiting unit fixedly connected to the rotating wheel unit, the circumferential surface of the rotating wheel unit having a plurality of teeth distributed in a circular ring with equal spacing, the limiting unit comprising a plurality of wedge blocks distributed in a circular ring with equal spacing; the fixed part comprising a fixed ring, a movable ring located between the fixed ring and the rotating wheel unit, and a driving cylinder fixedly installed at the fixed ring and used to drive the movable ring to translate, the movable ring being equipped with a plurality of limiting plugs that can abut the wedge blocks to limit the rotation of the limiting unit.

[0006] Furthermore, the limiting unit includes a circular ring base plate, the multiple wedge blocks are fixed to the circular ring base plate, the end face of the rotating wheel unit facing the limiting unit has a circular ring accommodating groove, the circular ring base plate is installed in the circular ring accommodating groove, and the circular ring base plate and the rotating wheel unit are fixedly connected by bolts and nuts.

[0007] The annular base plate can be detachably connected, making it easy to replace, thereby reducing maintenance costs.

[0008] Furthermore, the outer diameter of the annular base plate is equal to the outer diameter of the annular receiving groove, the inner diameter of the annular base plate is equal to the inner diameter of the annular receiving groove, the annular receiving groove has a plurality of limiting grooves, and the annular base plate has a plurality of limiting protrusions that cooperate with the limiting grooves.

[0009] Therefore, the limiting protrusion can play a good positioning role on the annular base plate, preventing displacement in the annular receiving groove and affecting the use effect.

[0010] Furthermore, the rotating wheel unit and the annular base plate are both provided with a plurality of countersunk holes;

[0011] The bolts are thus sunken into the countersunk holes and do not protrude, thus avoiding the bolts affecting the use effect and making the appearance more beautiful.

[0012] Furthermore, the wedge block includes a first surface and a second surface, the angle between the first surface and the second surface is between 5-20 degrees, and the second surface is perpendicular to the annular base plate.

[0013] Furthermore, the number of the wedge blocks is greater than or equal to 10.

[0014] Furthermore, the fixing unit also includes a circular mounting plate, the mounting plate and the fixed ring are connected by a plurality of connecting plates, the fixed ring has a plurality of guide holes, the movable ring is fixedly connected to a plurality of guide posts that cooperate with the guide holes; the wedge block has a limiting slot that cooperates with the limiting plug block; the movable ring has a plurality of mounting positions distributed in a circular shape with equal intervals, the number of the mounting positions is equal to the number of the wedge blocks, wherein three consecutive mounting positions do not have the limiting plug blocks, and the remaining mounting positions are all installed with the limiting plug blocks, and one of the three consecutive mounting positions is fixedly connected to a plug plate , the other two mounting positions are two continuous mounting positions, a sensing unit is installed at the plugging plate, the sensing unit includes a movable sleeve inserted by the plugging plate, a rotating plate hinged to the movable sleeve by an elastic reset hinge component, and a detection head installed at the rotating plate, the movable sleeve has a socket inserted by the plugging plate, the end of the socket and the end of the plugging plate are connected by a first spring, the end of the rotating plate has a mounting blind hole, the end of the mounting blind hole is installed with a pressure sensor, the detection head includes a pressure plate, a limiting circular plate portion connected to the pressure plate by a second spring, and a pressure rod fixedly connected to the limiting circular plate portion;

[0015] The guide column plays a guiding role when the movable ring translates, so that the translation is more stable. The operating status is monitored by the sensing unit, so that it can be monitored whether the compound gear is reversed. When reversal is detected, the limit plug is used to stop the compound gear from operating.

[0016] Furthermore, the compound gear can be in a monitoring state and an anti-reversal state. In the monitoring state, the driving cylinder is in the shortest state, all the limit plugs do not contact the wedge blocks, and as the rotating wheel unit rotates, the rotating plate can abut all the wedge blocks; in the anti-reversal state, the driving cylinder is in the longest state, all the limit plugs are inserted into the limit slots, and the rotating plate abuts against one of the wedge blocks so that the end of the pressure rod does not contact any wedge block.

[0017] Furthermore, a controller is included, the pressure sensor and the driving cylinder are both connected to the controller, and the controller controls the composite gear to switch from a monitoring state to an anti-reverse state when the measured value of the pressure sensor is greater than or equal to a set threshold;

[0018] The controller controls the switching state of the composite gear, thereby effectively preventing reversal, reducing losses, and avoiding the occurrence of safety accidents.

[0019] Furthermore, the inserting plate has strip limit blocks on both sides, and the movable sleeve has limit rectangular holes on both sides connected to the inserting hole. The two strip limit blocks correspond to the two limit rectangular holes one by one, and each strip limit block is located in one of the limit rectangular holes.

[0020] Furthermore, a limiting annular portion is fixed to the open end of the mounting blind hole, and the limiting circular plate portion is located in the mounting blind hole.

[0021] Furthermore, the end of the pressure rod is hemispherical.

[0022] Furthermore, the rotating plate has two mounting blind holes, and a detection head is installed at each mounting blind hole.

[0023] Furthermore, the number of the countersunk holes on the rotating wheel unit is equal to the number of the countersunk holes on the annular base plate.

[0024] Furthermore, the number of the countersunk holes on the rotating wheel unit is 6, and they are distributed in a circular shape with equal spacing; the number of the countersunk holes on the circular base plate is 6, and they are distributed in a circular shape with equal spacing;

[0025] Therefore, the connection between the annular base plate and the rotating wheel unit is more firm and stable.

[0026] Furthermore, there is an arc-shaped chamfer between the first surface and the second surface;

[0027] The arc chamfer can reduce the wear of the rotating plate on the wedge block, and the rotating plate and the wedge block move more smoothly.

[0028] Furthermore, in the anti-reversal state, the driving cylinder is in its longest state, all the limit blocks are inserted into the limit slots, and the rotating plate abuts against the arc chamfer of one of the wedge blocks so that the ends of the two pressure rods do not contact any wedge block.

[0029] Furthermore, there are two first springs;

[0030] Thus the plugboard has good telescopic performance.

[0031] Furthermore, the limiting slot is located at an open end of the second surface.

[0032] Furthermore, the end of the driving cylinder is fixedly connected to the mounting plate.

[0033] Furthermore, the plurality of connecting plates are distributed in a circular shape with equal spacing;

[0034] Therefore, the structure of the mounting plate is more stable and the connection with the fixing ring is more secure.

[0035] Furthermore, the end of the guide column has an end baffle.

[0036] In some embodiments, each of the mounting positions has a mounting through hole, the limiting plug has a threaded hole, and the limiting plug is fixedly connected to the mounting through hole by bolts.

[0037] Furthermore, there are two detection heads.

[0038] Furthermore, the controller controls the composite gear to switch from a monitoring state to an anti-reverse state when the measurement value of any pressure sensor is greater than or equal to a set threshold.

[0039] Furthermore, the number of the driving cylinders is greater than or equal to 2.

[0040] Furthermore, there are two driving cylinders.

[0041] Furthermore, the mounting plate has a plurality of bolt mounting holes;

[0042] This makes it easier to install other mechanical components.

[0043] Beneficial effects:

[0044] 1. The gear and the annular base plate components of the present application can be disassembled and easily replaced when they are severely worn, thereby reducing maintenance costs.

[0045] 2. A sensing unit is provided to monitor the compound gear's rotation. When the compound gear is detected to be reversed, the controller controls the driving cylinder to drive the movable ring to translate, so that the limit block is inserted into the limit slot of the wedge block, thereby preventing reversal.

[0046] 3. While using the limit plug, the sensing unit can be tilted up. The sensing unit does not bear the pressure in the anti-reversal state, thereby avoiding damage to the detection head and facilitating its long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a first-person perspective diagram of the monitoring status;

[0048] Figure 2 This is a schematic diagram of the second perspective of the monitoring status;

[0049] Figure 3 Schematic diagram of the anti-reversal state;

[0050] Figure 4 A schematic diagram showing the end of the limit block abutting against the limit slot in the anti-reverse state;

[0051] Figure 5 A first-person perspective diagram of component separation;

[0052] Figure 6 A second perspective diagram for separating components;

[0053] Description of reference numerals:

[0054] 1 shaft;

[0055] 2. Rotating wheel unit; 2.1. Teeth; 2.2. Annular receiving groove; 2.2.1. Limiting groove;

[0056] 3 Limiting unit; 3.1 Wedge block; 3.1.1 First surface; 3.1.2 Second surface; 3.1.3 Limiting slot; 3.1.4 Arc chamfer; 3.2 Annular base plate; 3.2.1 Limiting protrusion;

[0057] 4Fixing ring; 4.1Connecting plate; 4.2Mounting plate;

[0058] 5 movable ring; 5.1 limit plug; 5.2 guide column; 5.2.1 end baffle; 5.3 plug plate; 5.3.1 bar limit block;

[0059] 6 driving cylinder;

[0060] 7 movable sleeve; 7.1 first spring; 7.2 limiting rectangular hole;

[0061] 8 rotating plate; 8.1 pressure sensor;

[0062] 9.1 Pressure plate; 9.2 Second spring; 9.3 Limiting circular plate; 9.4 Pressure rod. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0064] The present invention provides Figure 1-6 The high-strength precision combined composite gear shown in the figure includes a rotating part and a fixed part, the rotating part includes a rotating shaft 1, a rotating wheel unit 2 fixedly connected to the rotating shaft 1, and a limiting unit 3 fixedly connected to the rotating wheel unit 2, the circumferential surface of the rotating wheel unit 2 has a plurality of teeth 2.1 distributed in a circular ring with equal spacing, and the limiting unit 3 includes a plurality of wedge blocks 3.1 distributed in a circular ring with equal spacing; the fixed part includes a fixed ring 4, a movable ring 5 located between the fixed ring 4 and the rotating wheel unit 2, and a driving cylinder 6 fixedly installed on the fixed ring 4 and used to drive the movable ring 5 to translate, and the movable ring 5 is installed with a plurality of limiting plugs 5.1 that can abut the wedge blocks 3.1 to limit the rotation of the limiting unit 3.

[0065] The limiting unit 3 includes a circular ring base plate 3.2, the multiple wedge blocks 3.1 are fixed to the circular ring base plate 3.2, the end surface of the rotating wheel unit 2 facing the limiting unit 3 has a circular ring receiving groove 2.2, the circular ring base plate 3.2 is installed in the circular ring receiving groove 2.2, and the circular ring base plate 3.2 and the rotating wheel unit 2 are fixedly connected by bolts and nuts; the outer diameter of the circular ring base plate 3.2 is equal to the outer diameter of the circular ring receiving groove 2.2, the inner diameter of the circular ring base plate 3.2 is equal to the inner diameter of the circular ring receiving groove 2.2, the circular ring receiving groove 2.2 has a plurality of limiting grooves 2.2.1, the circular ring base plate 3.2 has a plurality of limiting protrusions 3.2.1 that cooperate with the limiting grooves 2.2.1; the rotating wheel unit 2 and the circular base plate 3.2 both have a plurality of countersunk holes; the wedge block 3.1 includes a first surface 3.1.1 and a second surface 3.1.2, the angle between the first surface 3.1.1 and the second surface 3.1.2 is between 5-20 degrees, and the second surface 3.1.2 is perpendicular to the circular base plate 3.2; the number of the wedge blocks 3.1 is greater than or equal to 10; the fixing unit also includes a circular mounting plate 4.2, the mounting plate 4.2 and the fixing ring 4 are connected by a plurality of connecting plates 4.1, the fixing ring The ring 4 has a plurality of guide holes, and the movable ring 5 is fixedly connected with a plurality of guide posts 5.2 that cooperate with the guide holes; the wedge block 3.1 has a limit slot 3.1.3 that cooperates with the limit plug 5.1; the movable ring 5 has a plurality of mounting positions distributed in an annular shape with equal intervals, and the number of the mounting positions is equal to the number of the wedge blocks 3.1, wherein three consecutive mounting positions are not connected to the limit plug 5.1, and the remaining mounting positions are all installed with the limit plug 5.1, one of the three consecutive mounting positions is fixedly connected with a plug plate 5.3, and the other two mounting positions are two consecutive mounting positions and are empty positions, and the plug plate 5.3 is installed The sensing unit includes a movable sleeve 7 inserted by the plug plate 5.3, a rotating plate 8 hinged to the movable sleeve 7 by an elastic reset hinge component, and a detection head installed at the rotating plate 8. The movable sleeve 7 has a socket inserted by the plug plate 5.3, and the end of the socket and the end of the plug plate 5.3 are connected by a first spring 7.1. The end of the rotating plate 8 has a mounting blind hole, and the end of the mounting blind hole is installed with a pressure sensor 8.1. The detection head includes a pressure plate 9.1, a limiting circular plate portion 9.3 connected to the pressure plate 9.1 by a second spring 9.2, and a pressure rod 9.4 fixedly connected to the limiting circular plate portion 9.3.

[0066] It also includes a controller, the pressure sensor 8.1 and the driving cylinder 6 are connected to the controller, the composite gear can be in a monitoring state and an anti-reversal state, in the monitoring state, the driving cylinder 6 is in the shortest state, all the limit plugs 5.1 do not contact the wedge block 3.1, and as the rotating wheel unit 2 rotates, the rotating plate 8 can abut all the wedge blocks 3.1; in the anti-reversal state, the driving cylinder 6 is in the longest state, all the limit plugs 5.1 are inserted into the limit slots 3.1.3, the rotating plate 8 abuts against one of the wedge blocks 3.1 so that the end of the pressure rod 9.4 does not contact any wedge block 3.1; the controller is in a state of Line control, when the measured value of the pressure sensor 8.1 is greater than or equal to the set threshold value, the controller controls the compound gear to switch from the monitoring state to the anti-reverse state; the two sides of the plug plate 5.3 are provided with strip limit blocks 5.3.1, and the two sides of the movable sleeve 7 are provided with limit rectangular holes 7.2 connected to the plug hole, the two strip limit blocks 5.3.1 and the two limit rectangular holes 7.2 correspond one to one, and each strip limit block 5.3.1 is located in one of the limit rectangular holes 7.2; the open end of the mounting blind hole is fixed with a limit ring portion, and the limit circular plate portion 9.3 is located in the mounting blind hole; the end of the pressure rod 9.4 is hemispherical, and the rotating plate 8 has two mounting blind holes.

[0067] Working principle: The gear of the present application, the annular base plate is fixedly connected to the annular receiving groove of the rotating wheel unit by bolts and nuts. When the composite gear is used for a period of time and is severely worn, it is convenient to replace it, thereby reducing maintenance costs. The composite gear can be monitored by the sensing unit when it rotates. When the measured value of any pressure sensor is greater than or equal to the set threshold, it can be detected that the composite gear is reversed. The controller controls the driving cylinder to drive the movable ring to translate, so that all the limit blocks are inserted into the limit slots, thereby preventing reversal. While using the limit blocks, the sensing unit can be tilted up, and the sensing unit does not bear the pressure in the anti-reversal state, thereby avoiding damage to the detection head, which is beneficial to its long-term use.

[0068] The specific monitoring method is as follows: Use the controller to control the driving cylinder to be in the shortest state, so that all the limit plugs do not contact the wedge blocks. At this time, when the compound gear rotates (in the use scenario of slow rotation, the effect is better), the rotating plate can abut the first surface of all the wedge blocks due to the action of the elastic reset hinge component, and does not affect the rotation of the gear. When the compound gear reverses, the reversal of the wedge block will apply pressure to the pressure rod, and the pressure is pressed to the pressure plate through the second spring. The pressure sensor can detect the pressure value after sensing the pressure of the pressure plate. Therefore, when the measured value of more than one pressure sensor is greater than or equal to the set threshold, the reversal of the compound gear can be monitored. At this time, due to the action of the rotating plate and the pressure rod, the reversal of the gear is restricted.

[0069] When it is detected that the composite gear is reversed, the controller controls the composite gear to switch from the monitoring state to the anti-reversal state. Specifically, the controller controls the driving cylinder to drive the movable ring to translate in the direction of the limit unit, so that all the limit plugs are inserted into the limit slots of the wedge block until the driving cylinder is in the longest state. At this time, due to the action of the elastic hinge component and the first spring, the rotating plate will tilt up (the structure of the first and second springs, the sleeve, and the plug plate provides the rotating plate with enough space to tilt up) and abut against the arc chamfer of one of the wedge blocks, so that the end of the pressure rod does not contact any wedge block, and the pressure rod does not bear the pressure of the wedge block in the anti-reversal state, thereby protecting the pressure rod, avoiding damage to the detection head, and facilitating its long-term use.

[0070] The composite gear of the present application can prevent reversal by monitoring it, effectively protecting the gear and the mechanical parts connected to the gear, reducing adverse consequences, and extending the service life of the gear.

[0071] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A high-strength precision composite gear, characterized in that: The invention comprises a rotating part, a fixed part and a controller, the rotating part comprises a rotating shaft, a rotating wheel unit having a plurality of teeth distributed in a circular shape at equal intervals, and a limiting unit, the limiting unit comprising a circular base plate and more than 10 wedge-shaped blocks with limiting slots distributed in a circular shape at equal intervals; the fixing part comprises a fixed circular ring with a plurality of guide holes, a movable circular ring fixed with a plurality of guide pillars and a plurality of limiting plug-ins, a driving cylinder and a circular mounting plate connected to the fixed circular ring through a plurality of connecting plates; the rotating wheel unit has a circular receiving groove for mounting the circular base plate, and the circular base plate and the rotating wheel unit are fixedly connected by bolts and nuts; the movable circular ring has a plurality of mounting positions distributed in a circular shape at equal intervals, wherein three consecutive mounting positions are not connected with limiting plug-ins, and the remaining mounting positions are all installed with limiting plug-ins, one of the three consecutive mounting positions is fixedly connected with a plug-in plate, and the other two mounting positions are There are two consecutive installation positions that are empty, and a sensing unit is installed at the plug plate. The sensing unit includes a movable sleeve with a socket, a rotating plate and a detection head hinged to the movable sleeve by an elastic reset hinge component. The end of the socket and the end of the plug plate are connected by a first spring, the end of the rotating plate has a mounting blind hole, and the end of the mounting blind hole is installed with a pressure sensor. The detection head includes a pressure plate, a limiting circular plate portion connected to the pressure plate by a second spring, and a pressure rod; the composite gear can be in a monitoring state and an anti-reverse state. In the monitoring state, the driving cylinder is in the shortest state, and all the limiting blocks do not contact the wedge blocks, and as the rotating wheel unit rotates, the rotating plate can abut all the wedge blocks; in the anti-reverse state, the driving cylinder is in the longest state, all the limiting blocks are inserted into the limiting slots, and the rotating plate abuts against one of the wedge blocks so that the end of the pressure rod does not contact any wedge block.

2. The high-strength precision composite gear according to claim 1, characterized in that: The outer diameter of the annular base plate is equal to the outer diameter of the annular receiving groove, the inner diameter of the annular base plate is equal to the inner diameter of the annular receiving groove, the annular receiving groove has a plurality of limiting grooves, and the annular base plate has a plurality of limiting protrusions that cooperate with the limiting grooves; the rotating wheel unit and the annular base plate both have a plurality of countersunk holes.

3. The high-strength precision composite gear according to claim 1, characterized in that: The wedge block includes a first surface and a second surface, the angle between the first surface and the second surface is between 5 and 20 degrees, and the second surface is perpendicular to the annular base plate.

4. The high-strength precision composite gear according to claim 1, characterized in that: There are strip limit blocks on both sides of the plug board, and there are limit rectangular holes on both sides of the movable sleeve that are connected to the plug hole. The two strip limit blocks correspond to the two limit rectangular holes one by one, and each strip limit block is located in one of the limit rectangular holes.

5. The high-strength precision composite gear according to claim 1, characterized in that: The open end of the mounting blind hole is fixed with a limiting circular ring portion, and the limiting circular plate portion is located in the mounting blind hole; the end of the pressure rod is hemispherical, and the rotating plate is provided with two mounting blind holes.

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