Novel power-off disc brake with coupler

Abstract

The utility model relates to a novel power-off disc brake with a coupler, and relates to the technical field of hoisting mechanical equipment, the novel power-off disc brake comprises a brake and the coupler, the brake comprises a connecting key sleeve, the input end of the coupler coaxially sleeves the connecting key sleeve, and the end, away from the coupler, of the connecting key sleeve is coaxially connected with a motor; the output end of the coupler is connected with a component matched with the motor. The mounting structure has the effect of improving the mounting efficiency of all the components by arranging the couplings for some projects with short construction periods or emergency projects.

Description

Technical Field

[0001] The present application relates to the technical field of lifting machinery and equipment, and in particular to a novel power-off disc brake with a coupling. Background Art

[0002] The stage hoist is a tool for hanging lamps and curtains in theaters, auditoriums, clubs, studios, multi-purpose halls, gymnasiums, etc. The electric stage hoist is a widely used stage hoist.

[0003] At present, its main driving mechanism is composed of a three-phase asynchronous motor with electromagnetic brake, a reducer and a spiral groove drum. The three-phase asynchronous motor with electromagnetic brake is a non-standard customized one, which is modified from a standard three-phase asynchronous motor and equipped with an electromagnetic power-off brake.

[0004] For some projects with short construction period or emergency, three-phase asynchronous motors have the problems of difficult stocking and long delivery cycle. In view of the above problems and defects, and for the application conditions of some projects with short construction period or emergency, the present invention proposes a new type of power-off disc brake with coupling. Utility Model Content

[0005] In order to adapt to the application conditions of some projects with short construction period or emergency, the present application provides a new type of power-off disc brake with a coupling.

[0006] The present application provides a novel power-off disc brake with a coupling, which adopts the following technical solution:

[0007] A novel power-losing disc brake with a coupling comprises a brake and a coupling, wherein the brake comprises a connecting key sleeve, the input end of the coupling is coaxially sleeved on the connecting key sleeve, the end of the connecting key sleeve away from the coupling is coaxially connected to a motor, and the output end of the coupling is connected to a component that matches the motor.

[0008] By adopting the above technical solution, in certain working conditions, such as the application of stage electric hoist machines, the main driving mechanism is composed of a three-phase asynchronous motor with electromagnetic brake, a reducer and a spiral groove drum. The three-phase asynchronous motor with electromagnetic brake is non-standard customized, which is modified from a standard three-phase asynchronous motor and equipped with an electromagnetic power-loss brake. In some projects with short construction periods or emergencies, there are difficulties in stocking and long delivery cycles. For this reason, a coupling is set between the brake and other components that cooperate with the motor to avoid modification of the motor, so as to achieve the dual effects of transmitting torque and braking, thereby improving the installation efficiency between the components and further quickly applying them to working conditions.

[0009] Optionally, the brake also includes a magnetic part, an armature and a brake disc, the magnetic part is sleeved on the connecting key sleeve, the armature is arranged close to the side of the magnetic part, the brake disc is coaxially sleeved on the connecting key sleeve, the brake disc is arranged close to the end face of the motor, the armature is located between the magnetic part and the brake disc, and the brake disc slides along the axial direction of the connecting key sleeve, when the magnetic part is energized, the armature moves toward the side close to the magnetic part, and when the magnetic part is de-energized, the armature moves toward the side close to the brake disc.

[0010] By adopting the above technical solution and setting a magnetic attraction part, when the magnetic attraction part is energized, the armature moves toward the side close to the magnetic attraction part, the armature is separated from the brake disc, and the brake disc is further separated from the motor, thereby realizing the rotation of the motor; when the magnetic attraction part is de-energized, the armature moves toward the side close to the brake disc, further driving the brake disc to move toward the end face of the motor until it abuts against the end face of the motor, and friction is generated between the brake disc and the end face of the motor, thereby putting the motor in a braking state.

[0011] Optionally, the brake also includes a first elastic member, which is installed between the magnetic member and the armature, the expansion and contraction direction of the first elastic member is parallel to the axial direction of the connecting key sleeve, and the first elastic member has a force to drive the armature to move toward the side close to the brake disc under recoverable deformation.

[0012] By adopting the above technical solution and setting a first elastic member, when the magnetic member is energized, the armature is attracted to move toward one side of the magnetic member, and the first elastic member is in a compressed state. When the magnetic member is de-energized, the armature loses its electromagnetic attraction, and under the action of the first elastic member, the first elastic member changes from a compressed state to a normal state, thereby driving the armature to move toward one side of the brake disc, causing the brake disc to abut against the end face of the motor, thereby achieving braking of the motor.

[0013] Optionally, a friction plate is fixedly connected to a side of the brake disc close to the motor end face.

[0014] By adopting the above technical solution, by arranging a friction plate on the side of the brake disc close to the motor end face, when the brake disc moves toward the motor end face until it abuts against the motor end face, the friction between the brake disc and the motor end face is further increased, thereby improving the braking effect on the motor.

[0015] Optionally, the coupling input end and the connecting key sleeve are detachably connected.

[0016] By adopting the above technical solution, in order to facilitate the installation and disassembly of the coupling and the connecting key sleeve, the coupling input end and the connecting key sleeve are detachably connected.

[0017] Optionally, the coupling input end is provided with a plurality of first clamping grooves along its circumference, a first clamping strip is formed between each adjacent two first clamping grooves, and the connecting key sleeve is provided with second clamping grooves accommodating the first clamping strips along the circumferential direction at one end close to the coupling input end, a second clamping strip is formed between each adjacent two second clamping grooves, the first clamping strip is clamped to the second clamping groove, and the second clamping strip is clamped to the first clamping groove.

[0018] By adopting the above technical solution, the first clamping strip is clamped to the second clamping groove, and the second clamping strip is clamped to the first clamping groove, so as to achieve a fixed connection between the connecting key sleeve and the input end of the coupling, and this connection method can further avoid relative rotation between the connecting key sleeve and the coupling in the circumferential direction.

[0019] Optionally, an abutment strip is provided in the second clamping groove, and the two parallel side walls of the second clamping groove are connected to the abutment strips, a clamping area is formed between the two abutment strips, and the abutment strip slides along the radial direction of the connecting key sleeve to change the width of the clamping area.

[0020] By adopting the above technical solution, since there may be errors in the width dimension of the first clamping groove on the coupling, which will lead to slight errors in the width of the first clamping strip, in order to further improve the clamping effect, an abutment strip is provided in the second clamping groove, and the abutment strip cigarette connecting key sleeve slides in the radial direction, so that the clamping area formed between the two abutment strips can adapt to and accommodate first clamping strips of different widths, thereby improving the stability of the connecting key sleeve and the coupling.

[0021] Optionally, two side walls parallel to the second clamping groove are provided with sliding grooves along the radial direction of the connecting key sleeve, and a second elastic member is provided between the abutment strip and the connecting key sleeve, one end of the second elastic member is fixedly connected to the bottom wall of the sliding groove, and the other end is fixedly connected to the abutment strip, and the second elastic member has a force driving the abutment strip to move away from the sliding groove under recoverable deformation.

[0022] By adopting the above technical solution and providing the second elastic member, the abutting strip can be more firmly abutted against the side wall of the first clamping strip under the action of the second elastic member.

[0023] Optionally, the length of the abutment strip matches the length of the first clamping strip.

[0024] By adopting the above technical solution, the length of the abutting strip is equal to the length of the first clamping strip, so as to increase the contact area between the abutting strip and the first clamping strip, thereby improving the stability of the connection between the two.

[0025] Optionally, the outer diameter of the abutting strip gradually decreases toward a side close to the first clamping strip.

[0026] By adopting the above technical solution, in order to facilitate the first clamping strip to smoothly enter the second clamping groove, the outer diameter of the abutting strip gradually decreases toward the side close to the first clamping strip.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application uses an integrated arrangement of a coupling and a brake, which eliminates the need to modify the motor in certain working conditions, and achieves the dual effects of torque transmission and braking through the coupling, thereby improving the installation efficiency between the components and further quickly applying them to working conditions;

[0029] 2. The present application uses a clamping connection between the connecting key sleeve and the coupling, which is convenient for installation and disassembly, and avoids relative rotation between the connecting key sleeve and the coupling in the circumferential direction, thereby further improving the stability of the connection between the brake and the coupling;

[0030] 3. The present application improves the adaptability of the first engaging strip and the second engaging groove by providing a slidable abutment strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a novel power-off disc brake with a coupling in the present application;

[0032] Figure 2 is a cross-sectional view of the brake of the present application;

[0033] Figure 3 It is a schematic diagram of the structure of the manual release handle and brake of the present application;

[0034] Figure 4 It is a schematic diagram of the connection structure between the coupling and the connecting key sleeve of the present application;

[0035] Figure 5 It is an exploded view of the coupling and the connecting key sleeve of the present application;

[0036] Figure 6 It is a schematic diagram of the connection structure between the abutment strip and the connection key sleeve of the present application;

[0037] Figure 7 yes Figure 6 Enlarged view of part A.

[0038] Explanation of the reference numerals in the accompanying drawings: 1. brake; 11. connecting key sleeve; 111. second snap-fitting groove; 112. second snap-fitting strip; 113. abutting strip; 1131. snap-fitting area; 114. slide groove; 115. second elastic member; 12. magnetic member; 121. yoke; 1211. accommodating groove; 122. coil; 13. armature; 14. brake disc; 141. friction plate; 15. mounting base; 151. first bolt; 16. first elastic member; 2. coupling; 21. first snap-fitting groove; 22. first snap-fitting strip; 3. motor; 4. manual release handle; 41. mounting seat; 5. manual release mechanism; 6. reducer. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] The embodiment of the present application discloses a novel power-off disc brake with a coupling. Figure 1 and Figure 2 The new type of power-losing disc brake with a coupling includes a brake 1 and a coupling 2. The brake 1 includes a connecting key sleeve 11. The input end of the coupling 2 is coaxially sleeved on the connecting key sleeve 11. The end of the connecting key sleeve 11 away from the coupling 2 is coaxially connected to the motor 3. The output end of the coupling 2 is connected to a component that matches the motor 3.

[0041] Reference Figure 2 The brake 1 also includes a magnetic member 12, an armature 13 and a brake disc 14. The magnetic member 12 is sleeved on the connecting key sleeve 11, and the armature 13 is arranged close to the side of the magnetic member 12. The brake disc 14 is located on the side of the armature 13 away from the magnetic member 12. The brake disc 14 is coaxially sleeved on the connecting key sleeve 11 through a spline, that is, the armature 13 is located between the brake disc 14 and the magnetic member 12, and the brake disc 14 slides along the axial direction of the connecting key sleeve 11. When the magnetic member 12 is energized, an electromagnetic force is generated on the armature 13, and the armature 13 moves toward the side close to the magnetic member 12. When the magnetic member 12 is de-energized, the electromagnetic force on the armature 13 disappears, and the armature 13 moves toward the side close to the brake disc 14.

[0042] Reference Figure 2In order to ensure the braking or non-braking state of the brake 1, the brake 1 also includes a mounting base plate 15, the mounting base plate 15 is located on the side of the brake disc 14 away from the armature 13, and the mounting base plate 15 is installed on the end face of the motor 3 through a first bolt 151. The motor 3 exists as a component connected to the brake 1, and the output shaft of the motor 3 is coaxially arranged in the connecting key sleeve 11. In order to better drive the armature 13 to move, the brake 1 also includes a first elastic member 16, and the first elastic member 16 is installed between the armature 13 and the magnetic member 12. The expansion and contraction direction of the first elastic member 16 is parallel to the axial direction of the connecting key sleeve 11. In the embodiment, the first elastic member 16 is a compression spring. When the magnetic member 12 is energized, the armature 13 is attracted, the first elastic member 16 is compressed, the armature 13 is disengaged from the brake disc 14, and the mounting base plate 15 is disengaged from the armature 13, further making the motor 3 in a rotating state. When the magnetic member 12 is de-energized, the armature 13 moves toward the side close to the brake disc 14, and the first elastic member 16 changes from a compressed state to a normal state. Under the action of the first elastic member 16, the brake disc 14 is pushed to press the mounting base plate 15 against the end face of the motor 3, and friction is generated between the mounting base plate 15 and the end face of the motor 3, thereby stopping the motor 3 from rotating.

[0043] Reference Figure 2 The magnetic attraction component 12 includes a yoke 121 and a coil 122. The yoke 121 is coaxially sleeved on the connecting key sleeve 11, and the coil 122 is installed on the yoke 121. The first elastic component 16 is installed between the yoke 121 and the armature 13. Specifically, a receiving groove 1211 is opened on the side of the yoke 121 close to the armature 13 along the axial direction of the connecting key sleeve 11. The first elastic component 16 is located in the receiving groove 1211. One end of the first elastic component 16 is fixedly connected to the bottom wall of the receiving groove 1211, and the other end abuts against the end face of the armature 13. When the coil 122 is energized, the armature 13 is attracted. When the coil 122 is de-energized, the armature 13 loses its electromagnetic force.

[0044] Reference Figure 2 When the coil 122 is powered off, in order to further increase the friction between the brake disc 14 and the mounting base plate 15, a friction plate 141 is fixedly connected to one side of the brake disc 14 close to the mounting base plate 15, so that the friction plate 141 increases the friction between the brake disc 14 and the mounting base plate 15, thereby ensuring that the motor 3 is in a non-braking state.

[0045] Reference Figure 3In order to manually realize the braking and non-braking of the motor 3 when the coil 122 is powered off, the novel power-off disc brake with coupling further comprises a manual release handle 4 and a manual release mechanism 5. The manual release handle 4 realizes the braking of the brake 1 and the motor 3 through the manual release mechanism 5. The manual release mechanism 5 is coaxially sleeved on the connecting key sleeve 11. The manual release mechanism 5 is installed on the side of the yoke 121 away from the motor 3. The manual release handle 4 is connected to the manual release mechanism 5 through the mounting seat 41. The manual release handle 4 is rotatably connected to the mounting seat 41. The manual release handle 4 is vertically arranged along the rotation axis of the mounting seat 41. Perpendicular to the axial direction of the connecting key sleeve 11, when the coil 122 is powered off, the manual release handle 4 is rotated 90° by a wrench so that the manual release handle 4 is perpendicular to the rotation axis direction of the manual release handle 4 and the axial direction of the connecting key sleeve 11, so that manual release can be achieved and maintained in the released state, thereby separating the brake disc 14 from the mounting chassis to achieve rotation of the motor 3. When the motor 3 needs to be put into the braking state again, the manual release handle 4 is rotated to the original housing. It should be noted that the manual release handle 4 is a prior art in this field, and its principle will not be elaborated here.

[0046] Reference Figure 3 The active end of the coupling 2 is coaxially sleeved on the connecting key sleeve 11 of the brake 1, and the driven end is provided with a reducer 6, which is a component that cooperates with the motor 3, and the driven end is coaxially sleeved on the input end of the reducer 6, integrating the brake 1 and the coupling 2 into one, achieving the dual effects of transmitting torque and braking.

[0047] Reference Figure 4 In order to facilitate the installation and disassembly between the coupling 2 and the connecting key sleeve 11, the active end of the coupling 2 and the connecting key sleeve 11 are detachably connected;

[0048] Reference Figure 4 and Figure 5 In one embodiment of the present disclosure, a plurality of first clamping grooves 21 are provided along the circumference of the input end of the coupling 2, a first clamping strip 22 is formed between each adjacent two first clamping grooves 21, and second clamping grooves 111 for accommodating the first clamping strips 22 are provided at intervals along the circumference at one end of the connecting key sleeve 11 close to the input end of the coupling 2, a second clamping strip 112 is formed between each adjacent two second clamping grooves 111, the first clamping strip 22 is clamped to the second clamping groove 111, and the second clamping strip 112 is clamped to the first clamping groove 21, thereby realizing the connection between the input end of the coupling 2 and the connecting key sleeve 11, and this connection method avoids relative rotation between the coupling 2 and the connecting key sleeve 11 in the circumferential direction, further improving the stable connection between the coupling 2 and the brake 1.

[0049] Reference Figure 5 , Figure 6 and Figure 7 When the widths of the plurality of first engaging grooves 21 circumferentially provided at the input end of the coupling 2 have errors, the widths of the first engaging strips 22 are further inconsistent. In this case, in order to ensure the stable connection between the coupling 2 and the connecting key sleeve 11, an abutting strip 113 is provided in the second engaging groove 111. The two parallel side walls of the second engaging groove 111 are both connected with the abutting strips 113. A engaging area 1131 is formed between the two abutting strips 113. The abutting strips 113 slide along the radial direction of the connecting key sleeve 11 to change the The width of the clamping area 1131, specifically, the two side walls parallel to the second clamping groove 111 are provided with a slide groove 114 along the radial direction of the connecting key sleeve 11, and a second elastic member 115 is provided between the abutment strip 113 and the connecting key sleeve 11, one end of the second elastic member 115 is fixedly connected to the bottom wall of the slide groove 114, and the other end is fixedly connected to the abutment strip 113. In this embodiment, the second elastic member 115 is a compression spring, and the second elastic member 115 has a force to drive the abutment strip 113 to move toward the side away from the slide groove 114 under recoverable deformation.

[0050] Reference Figure 6 and Figure 7 The depth of the slide groove 114 is greater than the height direction of the abutment strip 113, so that the abutment strip 113 can be completely accommodated in the slide groove 114, so that the first clamping strip 22 can fit with the side wall of the second clamping groove 111, thereby realizing the connection and fixation of the coupling 2 and the connecting key sleeve 11.

[0051] Reference Figure 6 In order to further increase the contact area between the abutment strip 113 and the first clamping strip 22, the length of the abutment strip 113 is adapted to the first clamping strip 22 to reduce the movement of the first clamping strip 22 in the second clamping groove 111. In order to facilitate the smooth clamping of the first clamping strip 22 in the second clamping groove 111, the outer diameter of the abutment strip 113 gradually decreases toward the side close to the first clamping strip 22.

[0052] The implementation principle of a new type of power-off disc brake with a coupling in the embodiment of the present application is as follows: when the coil 122 is energized, the coil 122 generates an electromagnetic attraction on the armature 13, the armature 13 is separated from the brake disc 14, and the brake disc 14 is separated from the mounting base plate 15, so that the motor 3 connected to the mounting base plate 15 is in a rotating state; when the coil 122 is de-energized, the armature 13 loses the electromagnetic attraction, and under the action of the first elastic member 16, the armature 13 moves toward the side of the brake disc 14, further pressing the brake disc 14 and the mounting base plate 15, so that the motor 3 is in a braking state; the coupling 2 is connected between the brake 1 and the reducer 6, and the other end of the brake 1 is connected to the motor 3, so as to achieve the dual effects of braking and torque transmission through the coupling 2, and the input end of the coupling 2 is connected to the end of the connecting sleeve by a clamping connection to achieve a stable connection between the coupling 2 and the brake 1.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new type of power-off disc brake with coupling, characterized by: The invention comprises a brake (1) and a coupling (2), wherein the brake (1) comprises a connecting key sleeve (11), the input end of the coupling (2) is coaxially sleeved on the connecting key sleeve (11), the end of the connecting key sleeve (11) away from the coupling (2) is coaxially connected to a motor (3), and the output end of the coupling (2) is connected to a component matching the motor (3); The brake (1) further comprises a magnetic member (12), an armature (13) and a brake disc (14); the magnetic member (12) is sleeved on the connecting key sleeve (11); the armature (13) is arranged close to one side of the magnetic member (12); the brake disc (14) is coaxially sleeved on the connecting key sleeve (11); the brake disc (14) is arranged close to one side of an end face of the motor (3); the armature (13) is located between the magnetic member (12) and the brake disc (14); the brake disc (14) slides along the axial direction of the connecting key sleeve (11); when the magnetic member (12) is powered on, the armature (13) moves towards the side close to the magnetic member (12); when the magnetic member (12) is powered off, the armature (13) moves towards the side close to the brake disc (14).

2. A novel power-off disc brake with a coupling according to claim 1, characterized in that: The brake (1) also includes a first elastic member (16), which is installed between the magnetic member (12) and the armature (13), and the expansion and contraction direction of the first elastic member (16) is parallel to the axial direction of the connecting key sleeve (11). The first elastic member (16) has a force to drive the armature (13) to move toward the side close to the brake disc (14) under recoverable deformation.

3. A novel power-off disc brake with coupling according to claim 1, characterized in that: A friction plate (141) is fixedly connected to one side of the brake disc (14) close to the end surface of the motor (3).

4. A novel power-off disc brake with a coupling according to any one of claims 1 to 3, characterized in that: The coupling (2) input end and the connecting key sleeve (11) are detachably connected.

5. A novel power-off disc brake with coupling according to claim 4, characterized in that: The input end of the coupling (2) is provided with a plurality of first clamping grooves (21) along its circumferential direction, a first clamping strip (22) is formed between each two adjacent first clamping grooves (21), the end of the connecting key sleeve (11) close to the input end of the coupling (2) is provided with second clamping grooves (111) for accommodating the first clamping strips (22) at intervals along the circumferential direction, a second clamping strip (112) is formed between each two adjacent second clamping grooves (111), the first clamping strip (22) is clamped to the second clamping groove (111), and the second clamping strip (112) is clamped to the first clamping groove (21).

6. A novel power-off disc brake with a coupling according to claim 5, characterized in that: A contact strip (113) is provided in the second clamping groove (111); two parallel side walls of the second clamping groove (111) are connected to the contact strips (113); a clamping area (1131) is formed between the two contact strips (113); the contact strip (113) slides along the radial direction of the connecting key sleeve (11) to change the width of the clamping area (1131).

7. A novel power-off disc brake with a coupling according to claim 6, characterized in that: The two side walls parallel to the second clamping groove (111) are provided with a slide groove (114) along the radial direction of the connecting key sleeve (11), and a second elastic member (115) is provided between the abutment strip (113) and the connecting key sleeve (11). One end of the second elastic member (115) is fixedly connected to the bottom wall of the slide groove (114), and the other end is fixedly connected to the abutment strip (113). The second elastic member (115) has a force to drive the abutment strip (113) to move toward a side away from the slide groove (114) under recoverable deformation.

8. The novel power-off disc brake with coupling according to claim 6 is characterized in that: The length of the abutment strip (113) is adapted to the length of the first clamping strip (22).

9. A novel power-off disc brake with coupling according to claim 7, characterized in that: The outer diameter of the abutment strip (113) gradually decreases towards the side close to the first clamping strip (22).

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