Gear brake and driving all-in-one machine

Abstract

The invention relates to a gear brake and a driving all-in-one machine, the gear brake comprises a rear end cover, an inner gear ring, a brake assembly and a driving assembly, and the inner gear ring is used for being connected with a rotating shaft in a motor assembly; the brake assembly comprises a supporting piece movably connected to one side of the rear end cover and at least one brake gear arranged on the supporting piece, and a brake tooth part matched with the matched tooth part is formed on the outer wall of the brake gear. The driving assembly is arranged on the other side of the rear end cover and used for driving the supporting piece to move relative to the inner gear ring so that the braking tooth part and the matching tooth part can be meshed or separated. When the motor assembly works normally, the brake gear is separated from the inner gear ring, and when the motor assembly rotates reversely, the brake gear is meshed with the inner gear ring, so that the rotating shaft stops rotating. Component parts of the gear brake are independent, the abrasion degree between the brake gear and the inner gear ring is small, reliability is high, meanwhile, maintenance is easy, and production work efficiency is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of motor equipment technology, specifically, it relates to a gear brake and drive integrated machine. Background Technology

[0002] Some existing integrated machines are equipped with electromagnetic brakes to prevent motor reversal. However, with prolonged use, the reliability of these electromagnetic brakes decreases, the failure rate is high, the friction pads wear out, and the braking torque gradually decreases, posing a risk of brake failure. When the electromagnetic brake fails, in addition to creating a safety hazard, it is necessary to replace the brake or the friction pads in a timely manner. However, in special working environments such as mines, replacing the brake or brake friction pads is time-consuming, labor-intensive, difficult to operate, and inefficient, seriously affecting production progress. Summary of the Invention

[0003] The purpose of this invention is to provide a gear brake and drive integrated machine to solve the problems existing in the prior art. In the existing integrated machine, the electromagnetic braking method has problems such as decreased reliability, increased failure rate, inconvenient replacement, and impact on production progress as the operating time increases.

[0004] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In one aspect, the present invention provides a gear brake comprising: Rear end cover; An internal gear ring, used to connect with a rotating shaft in a motor assembly, the internal gear ring being annular with mating teeth formed on its inner wall; A braking assembly includes a support member movably connected to one side of the rear end cover and at least one braking gear disposed on the support member, wherein the outer wall of the braking gear is formed with braking teeth adapted to the mating teeth. A drive assembly, located on the other side of the rear end cover, is used to drive the support member to move relative to the internal gear ring, so that the braking teeth and the mating teeth engage or disengage.

[0005] In some embodiments of this application, a movable groove is formed on the rear end cover, and a movable slider is detachably connected to the support member, the movable slider being movably connected within the movable groove.

[0006] Under the action of the moving slider, the support component drives the brake teeth to move to engage or disengage with the internal gear ring, thereby achieving the braking effect on the motor assembly.

[0007] In some embodiments of this application, the movable slider has a mating hole on the side near the rear end cover, and the drive assembly is connected to the mating hole through a transmission member. The transmission member includes a drive shaft and a connecting part eccentrically disposed at the end of the drive shaft. Both ends of the drive shaft extend to both sides of the rear end cover, one end of which is connected to the drive assembly, and the other end is connected to the mating hole through the connecting part.

[0008] The mating hole is an elongated hole. As the drive shaft rotates, the connecting part moves along the length of the mating hole. At the same time, the connecting part applies a force to the moving slider relative to the moving groove through the mating hole, thereby driving the support frame and brake teeth to move.

[0009] In some embodiments of this application, a first brake gear and a second brake gear are respectively provided at both ends of the support member, and the first brake gear and the second brake gear are configured to brake the motor assembly in two rotational directions respectively.

[0010] Depending on the actual braking direction of the motor assembly, either the first braking gear or the second braking gear is selected to achieve the braking purpose. That is, the first braking gear is used to brake the rotation of the motor assembly along the first direction, and the second braking gear is used to brake the rotation of the motor assembly along the second direction.

[0011] In some embodiments of this application, the first brake wheel is connected to the first backstop, the second brake wheel is connected to the second backstop, both the first backstop and the second backstop are unidirectional backstops, and the first backstop and the second backstop rotate in opposite directions.

[0012] The first and second backstops are used to constrain the rotation of the first and second brake wheels, respectively.

[0013] In some embodiments of this application, the two ends of the support member are respectively connected to a first fixed shaft and a second fixed shaft, the first brake gear and the first backstop are connected to the first fixed shaft, and the second brake gear and the second backstop are connected to the second fixed shaft.

[0014] In some embodiments of this application, the drive assembly includes a rotary reducer, a worm gear, and a worm. The output end of the rotary reducer is connected to the worm, the worm is connected to the worm gear, and the worm gear is connected to the drive shaft.

[0015] The rotary reducer drives the worm gear to rotate, which in turn drives the worm wheel to rotate, which in turn drives the transmission shaft to rotate, thus driving the moving slider.

[0016] In some embodiments of this application, the internal gear ring is fixed to the mounting plate by fasteners, a connecting sleeve is formed on the mounting plate, a first keyway is formed on the inner wall of the connecting sleeve, a second keyway is formed on the outer wall of the shaft in the motor assembly, and the first keyway and the second keyway are connected and fixed by a connecting key.

[0017] On the other hand, this application also proposes a drive unit that includes any of the gear brakes mentioned above.

[0018] In some embodiments of this application, the mounting plate in the gear brake is fixed to one end of the motor assembly, and the outer housing of the motor assembly and the rear end cover are fixed to the support base.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are: The gear brake involved in this application has an internal gear ring connected to the rotating shaft in the motor assembly. The braking of the rotating shaft in the motor assembly is achieved by the meshing of the brake gear and the internal gear ring. Specifically, when the motor assembly is in normal working condition, the brake gear is separated from the internal gear ring. When the motor assembly reverses, the brake gear is engaged with the internal gear ring to stop the rotating shaft. The components of a gear brake are independent, making disassembly and assembly simple and easy to operate. Moreover, with the increase of service time, the wear between the brake gear and the internal gear ring is small, resulting in high reliability. It is also easy to maintain and ensure production efficiency.

[0020] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of one embodiment of the integrated drive machine proposed in this invention; Figure 2 This is a perspective view of the gear brake proposed in this invention; Figure 3 This is a schematic diagram of the connection between the movable slider and the movable groove proposed in this invention; Figure 4 This is a structural diagram of the rear cover; Figure 5 This is a structural diagram of the mating hole on the movable slider; Figure 6This is a diagram showing the connection between the internal gear ring and the brake assembly; Figure 7 This is a diagram showing the connection structure of the brake gear and the backstop on the support frame; Figure 8 This is a diagram showing the connection between the internal gear ring and the shaft in the motor assembly; In the picture, 100. Gear brake; 110. Rear end cover; 111. Moving groove; 120. Internal gear ring; 130. Braking assembly; 131. Support member; 132. First brake gear; 133. Second brake gear; 134. Moving slider; 135. Mating hole; 136. First backstop; 137. Second backstop; 138. First fixed shaft; 139. Second fixed shaft; 140. Drive assembly; 141. Worm gear; 142. Worm wheel; 143. Drive shaft; 144. Connecting part; 150. Installation plate; 151. Connecting sleeve; 200. Motor assembly; 300. Support base. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] refer to Figure 2 , Figure 3 In one aspect, the present invention provides a gear brake 100, which includes a rear end cover 110, an internal gear ring 120, a braking assembly 130, and a drive assembly 140.

[0030] The internal gear ring 120 is used to connect with the rotating shaft in the motor assembly 200. The internal gear ring 120 is annular and has mating teeth formed on its inner wall.

[0031] The braking assembly 130 includes a support member 131 and at least one braking gear. The support member 131 is a support frame structure, and the braking gear is connected to the support member 131. The support member 131 is movably connected to one side of the rear end cover 110, and the drive assembly 140 is disposed on the other side of the rear end cover 110. The drive assembly 140 drives the support member 131 to move relative to the internal gear ring 120, so that the braking gear engages or disengages with the internal gear ring 120, thereby achieving braking and release of the motor assembly 200.

[0032] The outer wall of the brake gear has brake teeth that are adapted to the mating teeth. When the brake gear is connected to the internal gear ring 120, the mating teeth and the brake teeth mesh with each other.

[0033] The drive assembly 140 is used to drive the support 131 to move relative to the internal gear ring 120 so that the braking teeth and the mating teeth engage or disengage.

[0034] Combination Figure 4 In some embodiments of this application, a movable groove 111 is formed on the rear cover 110, and a movable slider 134 is detachably connected to the support member 131. The movable slider 134 is movably connected to the movable groove 111.

[0035] Under the action of the movable slider 134, the support member 131 drives the brake teeth to move to engage or disengage with the internal gear ring 120, thereby achieving the braking effect on the motor assembly 200.

[0036] Specifically, two limiting parts are provided on the rear end cover 110 at intervals, and a limiting recess is formed between the two limiting parts and the rear end cover 110. The moving groove 111 is formed between the two limiting recesses. The limiting recess is a groove structure with an opening facing downwards, and its two ends are also open. The upper and lower edges of the moving slider 134 are respectively inserted into the limiting recess from the ends of the limiting recess, so as to realize the movable connection of the moving slider 134 in the moving groove 111.

[0037] In some embodiments, the limiting portion can be detachably fixed to the rear cover 110.

[0038] In other embodiments, the limiting portion may also be integrally formed with the rear end cover 110, and the moving groove portion 111 and the limiting recess portion may be formed by machining the surface of the rear end cover 110.

[0039] refer to Figures 4-6 In some embodiments of this application, a mating hole 135 is formed on the side of the movable slider 134 near the rear end cover 110. The drive assembly 140 is connected to the mating hole 135 through a transmission member. The transmission member includes a drive shaft 143 and a connecting part 144 eccentrically disposed at the end of the drive shaft 143. Both ends of the drive shaft 143 extend to both sides of the rear end cover 110. One end is connected to the drive assembly 140, and the other end is connected to the mating hole 135 through the connecting part 144.

[0040] The mating hole 135 is an elongated hole. As the drive shaft 143 rotates, the connecting part 144 moves within the mating hole 135 along the length of the mating hole 135. At the same time, the connecting part 144 applies a force to the moving slider 134 relative to the moving groove 111 through the mating hole 135, thereby driving the support frame and the brake tooth to move.

[0041] The length direction of the movable groove 111 is perpendicular to the length direction of the mating hole 135. When the movable groove 111 is set in the horizontal direction, the length of the mating hole 135 extends in the vertical direction.

[0042] During installation, the connecting part 144 is inserted into the mating hole 135, and the drive assembly 140 drives the transmission shaft 143 to rotate. Since the connecting part 144 is eccentric to the transmission shaft 143, the connecting part 144 rotates around the rotation center of the transmission shaft 143 under the drive of the transmission shaft 143, and also includes vertical and horizontal displacement. While the connecting part 144 moves relative to the mating hole 135 along the length direction of the mating hole 135, it drives the moving slider 134 to move along the moving groove 111 to realize the connection or separation of the brake gear and the internal gear ring 120.

[0043] In other words, under the action of the brake gear, after the internal gear ring 120 stops rotating, the entire motor assembly 200 shaft stops moving, which means that the motor assembly 200 is usually in a locked state.

[0044] When the motor assembly 200 is required to work, the drive assembly 140 is powered on, which drives the moving slider 134 to move in the opposite direction. The moving slider 134 drives the support member 131 to move, and the brake gear on the support member 131 disengages from the internal gear disk, thereby releasing the braking state of the motor assembly 200.

[0045] Similarly, if you want the motor assembly 200 to brake or release in the opposite direction, you only need to rotate the rotary reducer in the opposite direction, causing the moving slider 134 to move in the opposite direction until the brake gear meshes with the internal gear, thus achieving braking in the other direction.

[0046] refer to Figure 5 , Figure 7 In some embodiments of this application, the support member 131 is provided with a first brake gear 132 and a second brake gear 133 at both ends, and the first brake gear 132 and the second brake gear 133 are configured to brake the motor assembly 200 in two rotational directions respectively.

[0047] Depending on the actual braking direction of the motor assembly 200, either the first braking gear 132 or the second braking gear 133 is selected to achieve the braking purpose. That is, the first braking gear 132 is used to brake the rotation of the motor assembly 200 along the first direction, and the second braking gear 133 is used to brake the rotation of the motor assembly 200 along the second direction.

[0048] In some embodiments of this application, the first brake wheel is connected to the first backstop 136, and the second brake wheel is connected to the second backstop 137. The first backstop 136 and the second backstop 137 are both one-way backstops, and the rotation directions of the first backstop 136 and the second backstop 137 are opposite.

[0049] The first and second backstops are used to constrain the rotation of the first and second brake wheels, respectively, to achieve bidirectional braking.

[0050] In some embodiments of this application, the two ends of the support member 131 are respectively connected to a first fixed shaft 138 and a second fixed shaft 139, a first brake gear 132 and a first backstop 136 are connected to the first fixed shaft 138, and a second brake gear 133 and a second backstop 137 are connected to the second fixed shaft 139.

[0051] Specifically, the first fixed shaft 138 is connected to the support member 131, and the first brake gear 132 and the first backstop 136 are connected to both ends of the first fixed shaft 138, that is, located on both sides of the support member 131.

[0052] The second fixed shaft 139 is connected to the support member 131, and the second brake gear 133 and the second backstop 137 are connected to both ends of the second fixed shaft 139, that is, located on both sides of the support member 131.

[0053] The first fixed shaft 138 and the second fixed shaft 139 are both fixed to the brake gear and the backstop by a flat key.

[0054] In some embodiments of this application, the drive assembly 140 includes a rotary reducer, a worm gear 142, and a worm 141. The output end of the rotary reducer is connected to the worm 141, the worm 141 is connected to the worm gear 142, and the worm gear 142 is connected to the drive shaft 143.

[0055] The worm gear 141 is connected to the rear end cover 110 through the drive housing. The rotary reducer drives the worm gear 141 to rotate, which in turn drives the worm wheel 142 to rotate, thereby driving the transmission shaft 143 to rotate, thus driving the moving slider 134.

[0056] In some embodiments of this application, in addition to being driven by a rotary reducer, worm gear 142 and worm 141, the drive assembly 140 can also be driven directly by a motor. For example, but not limited to, the motor is fixed on the rear end cover 110 and the output end of the motor is directly connected to the transmission shaft 143 to drive the transmission shaft 143 to rotate.

[0057] The drive shaft 143 drives the connecting part 144 to rotate. As the connecting part 144 rotates, it moves along the length of the mating hole 135 within the mating hole 135. At the same time, the connecting part 144 applies a force to the moving slider 134 through the mating hole 135 relative to the moving groove 111, thereby driving the support member 131 and the brake tooth to move.

[0058] refer to Figure 8 In some embodiments of this application, the internal gear ring 120 is fixed to the mounting plate 150 by fasteners. A connecting sleeve 151 is formed on the mounting plate 150. A first keyway is formed on the inner wall of the connecting sleeve 151. A second keyway is formed on the outer wall of the shaft in the motor assembly 200. The first keyway and the second keyway are connected and fixed by a connecting key.

[0059] In some embodiments, in order to improve the stability of the connecting sleeve 151 and the rotating shaft, two first keyways are provided opposite to each other on the inner wall of the connecting sleeve 151, and the position of the second keyway is adapted to the first keyway. The connection and fixation of the connecting sleeve 151 and the rotating shaft are realized by the two connecting keys.

[0060] On the other hand, this application also proposes a drive unit that includes any of the gear brakes 100 mentioned above.

[0061] In some embodiments of this application, the mounting plate 150 in the gear brake 100 is fixed to one end of the motor assembly 200. Multiple fasteners are spaced apart on the periphery of the mounting plate 150, and the mounting plate 150 is fixed to the motor assembly 200 by the fasteners, so that it rotates synchronously with the rotating shaft in the motor assembly 200.

[0062] The outer housing and rear end cover 110 of the motor assembly 200 are fixed on the support base 300.

[0063] The specific working process of the integrated drive unit is as follows: Based on the actual usage scenario, the actual braking direction is determined, specifically, the first braking gear 132 or the second braking gear 133 achieves the braking purpose.

[0064] The first brake gear 132 is used to brake the rotation of the motor assembly 200 along the first direction, and the second brake gear 133 is used to brake the rotation of the motor assembly 200 along the second direction.

[0065] When the motor assembly 200 is braked by rotating in the first direction, the controller controls the drive assembly 140 to drive the transmission shaft 143 to rotate in the corresponding direction, so that the transmission shaft 143 drives the connecting part 144 to rotate in that direction. As the connecting part 144 rotates, the connecting part 144 moves in the mating hole 135 along the length direction of the mating hole 135. At the same time, the connecting part 144 applies a force to the moving slider 134 through the mating hole 135 relative to the moving groove 111 to move in the first direction, thereby driving the support member 131 and the brake tooth to move, so that the first brake gear 132 meshes with the internal gear ring 120.

[0066] Similarly, when the motor assembly 200 brakes by rotating in the second direction, the controller controls the drive assembly 140 to drive the transmission shaft 143 to rotate in the opposite direction, so that the transmission shaft 143 drives the connecting part 144 to rotate in the opposite direction. As the connecting part 144 rotates, the connecting part 144 moves in the mating hole 135 along the length direction of the mating hole 135. At the same time, the connecting part 144 applies a force to the moving slider 134 through the mating hole 135 relative to the moving groove 111 in the second direction, thereby driving the support member 131 and the brake tooth to move, so that the second brake gear 133 meshes with the internal gear ring 120.

[0067] The gear brake 100 involved in this application has an internal gear ring 120 connected to the rotating shaft in the motor assembly 200. The braking of the rotating shaft in the motor assembly 200 is achieved by the meshing of the brake gear and the internal gear ring 120. Specifically, when the motor assembly 200 is in normal working condition, the brake gear is separated from the internal gear ring 120. When the motor assembly 200 is in reverse rotation, the brake gear is engaged with the internal gear ring 120 to stop the rotating shaft. The components of the gear brake 100 are independent, making disassembly and assembly simple and operation convenient. Moreover, with the increase of service time, the wear between the brake gear and the internal gear ring 120 is small, resulting in high reliability. It is also easy to maintain and ensure production efficiency.

[0068] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0069] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0070] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A gear brake, characterized by The gear brake comprises: a rear end cover; an inner ring for connecting with a rotating shaft in a motor assembly, the inner ring being annular and having a matching tooth portion formed on an inner wall thereof; a brake assembly comprising a support movably connected to one side of the rear end cover and at least one brake gear provided on the support, an outer wall of the brake gear being formed with a brake tooth portion matched with the matching tooth portion; a driving assembly provided on the other side of the rear end cover and used for driving the support to move relative to the inner ring so as to make the brake tooth portion and the matching tooth portion engage or separate.

2. The gear brake according to claim 1, wherein a moving groove portion is formed on the rear end cover, and a moving slider is detachably connected to the support and movably connected in the moving groove portion.

3. The gear brake according to claim 2, wherein the moving slider is formed with a matching hole on a side close to the rear end cover, the driving assembly is connected with the matching hole through a transmission member, and the transmission member comprises a transmission shaft and a connecting portion eccentrically provided on an end of the transmission shaft, both ends of the transmission shaft extend to both sides of the rear end cover, one end of the transmission shaft is connected with the driving assembly, and the other end of the transmission shaft is connected with the matching hole through the connecting portion.

4. The gear brake according to claim 1, wherein first and second brake gears are respectively provided on both ends of the support, and the first and second brake gears are configured to brake in two rotating directions of the motor assembly respectively.

5. The gear brake according to claim 4, wherein the first brake gear is connected with a first freewheel, the second brake gear is connected with a second freewheel, the first and second freewheels are single freewheels, and the rotating directions of the first and second freewheels are opposite.

6. The gear brake according to claim 5, wherein first and second fixed shafts are respectively connected to both ends of the support, the first brake gear and the first freewheel are connected to the first fixed shaft, and the second brake gear and the second freewheel are connected to the second fixed shaft.

7. The gear brake according to claim 3, wherein the driving assembly comprises a rotary reducer, a worm wheel and a worm, an output end of the rotary reducer is connected with the worm, the worm is matched with the worm wheel, and the worm wheel is connected with the transmission shaft.

8. The gear brake according to claim 1, wherein the inner ring is fixed on a mounting disc through a fastener, the mounting disc is formed with a connecting sleeve, an inner wall of the connecting sleeve is formed with a first key groove, an outer wall of the rotating shaft in the motor assembly is formed with a second key groove, and the first key groove and the second key groove are connected and fixed through a connecting key.

9. A drive all-in-one machine, characterized by, The gear brake according to any one of claims 1-8.

10. The drive integrated machine according to claim 9, wherein The mounting plate in the gear brake is fixed at one end of the motor assembly, and the outer housing of the motor assembly and the rear end cover are fixed on a support base.

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