Integrated debugging-free locking device

Abstract

The invention discloses an integrated debugging-free locking device which comprises a screw, a locking disc, a brake disc, an iron core, a coil wound on the iron core, a spring, a sleeve, an end cover, a bearing cover and a bearing. A plurality of grooves and blind holes are formed in the iron core around the coil at intervals. A sleeve with one closed end and the other open end is installed in the groove, a spring is installed in the sleeve, and the two ends of the spring are connected with the groove and the closed end of the sleeve respectively. The brake disc is arranged between the iron core and the locking disc, the locking disc is of a step-shaped structure, an end cover is arranged outside the locking disc in a sleeved mode, and a bearing chamber is formed between the locking disc and the end cover in a clamped mode. And the bearing is assembled in the bearing chamber and is fixed through the bearing cover. The brake disc, the end cover and the bearing cover are respectively provided with through holes at intervals, and screws penetrate through the through holes and the blind holes in the iron core to assemble the iron core, the brake disc, the end cover and the bearing cover together. The bearing fixing integration is adopted, the installation and debugging work is omitted, the production efficiency is effectively improved, and the consistency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locking device, in particular to an integrated locking device without debugging. BACKGROUND

[0002] The locking device is an electromagnetic braking device, which has short corresponding time, wide temperature range, high anti-vibration impact performance requirement, and can work reliably in harsh environment, and is widely used in servo motor system. The existing locking device is mainly of split structure, which adjusts the installation distance through the gasket form to achieve the braking requirement during installation. This way cannot guarantee the consistency of the product due to the machining error of parts and the difference of assembly workers during mass assembly and installation, and the debugging process is complex, which greatly affects the production efficiency. SUMMARY

[0003] The purpose of the present application is to provide an integrated locking device without debugging, which comprises a screw, a locking disc, a brake disc, an iron core, a coil, a spring, a sleeve, an end cover, a bearing cover and a bearing.

[0004] The iron core is a hollow cylindrical structure. An annular groove I is arranged around the center hole at one end of the iron core. The coil is arranged in the annular groove I. A plurality of grooves and a plurality of blind holes are arranged on the iron core and spaced around the annular groove I. The sleeve is installed in the groove. The sleeve is a tubular structure with one end closed and the other end open. The closed end of the sleeve is away from the groove bottom. The spring is installed in the sleeve. The two ends of the spring are connected with the groove and the closed end of the sleeve respectively.

[0005] The brake disc is arranged between the iron core and the locking disc. One side of the brake disc faces the iron core and the spring, and the other side faces the locking disc and the end cover.

[0006] The locking disc is in a stepped structure, and the end cover in a stepped structure is arranged outside the locking disc, so that a bearing chamber is arranged between the locking disc and the end cover. The bearing is assembled in the bearing chamber and fixed by the bearing cover. The brake disc, the end cover and the bearing cover are respectively and spacedly provided with through holes I, through holes II and through holes III. The number and position of the through holes I, the through holes II and the through holes III correspond to the number and position of the blind holes one by one. The screw passes through the through holes III, the through holes II, the through holes I and the blind holes, and the iron core, the brake disc, the end cover and the bearing cover are assembled together.

[0007] Further, the blind hole is a T-shaped hole as a whole. A support sleeve is arranged between the step surface of the blind hole and the end cover. The support sleeve is arranged in the through hole I of the brake disc. The screw is arranged in the support sleeve.

[0008] Further, a potting glue layer is arranged between the coil and the iron core.

[0009] Further, the installation gap between the locking disc and the brake disc is 0.5±0.05mm.

[0010] Further, the locking disc comprises three coaxial cylindrical segments connected in sequence, namely a large-diameter segment I, a medium-diameter segment and a small-diameter segment I. The large-diameter segment I is close to the brake disc side, and a plurality of fan-shaped annular flanges are arranged on the outer side wall of the large-diameter segment I.

[0011] Further, the end cover comprises two coaxial cylindrical segments connected in sequence, namely a large-diameter segment II and a small-diameter segment II. The center of the end cover is provided with a through hole.

[0012] The large-diameter segment II faces the brake disc side. The large-diameter segment II is provided with an annular groove II around the through hole. The annular groove II is in communication with the center through hole of the end cover. The locking disc is arranged in the through hole of the end cover, and the fan-shaped annular flanges on the locking disc are arranged in the annular groove II.

[0013] The small-diameter segment II is provided with an annular groove III at one end facing the bearing cover, and the annular groove III is in communication with the center through hole of the end cover.

[0014] Further, the center through hole of the end cover, the groove wall of the annular groove III and the outer wall of the locking disc are clamped to form a bearing chamber.

[0015] Further, the bearing cover is matched with the end cover.

[0016] The center position of the bearing cover is provided with a through hole, one end of the locking disc is located in the center through hole of the bearing cover, and the end face is flush with the end face of the bearing cover.

[0017] Further, when the coil is powered on, under the action of electromagnetic force, the brake disc is separated from the locking disc and attracted to the iron core, and the lock is in the unlocked state.

[0018] When the coil is powered off, under the action of the spring force, the brake disc is separated from the iron core and adheres to the locking disc, and the lock is in the braking state.

[0019] The technical effect of the present application is self-evident, and the beneficial effects of the present application are as follows:

[0020] 1. The lock of the present application adopts bearing fixing integration, which eliminates the installation and debugging work and greatly improves the production efficiency.

[0021] 2. The lock of the present application has high product consistency after integration, which reduces the possibility of product consistency failure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the present application is shown in the figure;

[0023] Figure 2For Figure 1 A-A cross-sectional view.

[0024] In the figure: screw 1, locking disc 2, large diameter section I 201, medium diameter section 202, small diameter section I 203, brake disc 3, core 4, annular groove I 401, groove 402, blind hole 403, coil 5, spring 6, sleeve 7, end cover 8, large diameter section II 801, small diameter section II 802, bearing cover 9, bearing 10, support sleeve 11. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the examples, but should not be understood as limiting the above-mentioned subject matter of the application to the following examples. Various substitutions and modifications can be made according to ordinary technical knowledge and conventional means in the art without departing from the above-mentioned technical idea of the application, and all should be included in the protection scope of the application.

[0026] Example 1

[0027] Referring to Figure 1 , Figure 2 , an integrated debug-free locking device includes a screw 1, a locking disc 2, a brake disc 3, a core 4, a coil 5, a spring 6, a sleeve 7, an end cover 8, a bearing cover 9, and a bearing 10.

[0028] The core 4 is a hollow cylindrical structure. An annular groove I 401 is arranged around the central hole at one end of the core 4. The coil 5 is arranged in the annular groove I 401. A plurality of grooves 402 and a plurality of blind holes 403 are arranged on the core 4 around the annular groove I 401. The sleeve 7 is installed in the groove 402. The sleeve 7 is a tubular structure with one end closed and the other end open. The closed end of the sleeve 7 is away from the groove bottom of the groove 402. The spring 6 is installed in the sleeve 7. The two ends of the spring 6 are connected with the groove 402 and the closed end of the sleeve 7, respectively.

[0029] The brake disc 3 is arranged between the core 4 and the locking disc 2. One side of the brake disc 3 faces the core 4 and the spring 6, and the other side faces the locking disc 2 and the end cover 8.

[0030] The locking disc 2 is in a stepped structure, and the end cover 8 in a stepped structure is arranged outside the locking disc 2, so that a bearing chamber is clamped between the locking disc 2 and the end cover 8. The bearing 10 is assembled in the bearing chamber and fixed by the bearing cover 9. The brake disc 3, the end cover 8, and the bearing cover 9 are respectively and intermittently provided with through holes I, through holes II, and through holes III. The number and position of the through holes I, the through holes II, and the through holes III correspond to the number and position of the blind holes 403 one by one. The screw 1 passes through the through holes III, the through holes II, the through holes I, and the blind holes 403 to assemble the core 4, the brake disc 3, the end cover 8, and the bearing cover 9 together.

[0031] Embodiment 2

[0032] The main structure of this embodiment is the same as that of any one of Embodiments 1-2, further, the blind hole 403 is a T-shaped hole as a whole. A support sleeve 11 is arranged between the step surface of the blind hole 403 and the end cover 8. The support sleeve 11 is arranged in the through hole I of the brake disc 3. The screw 1 is arranged in the support sleeve 11.

[0033] Embodiment 3

[0034] The main structure of this embodiment is the same as that of any one of Embodiments 1-2, further, a potting glue layer is arranged between the coil 5 and the iron core 4.

[0035] Embodiment 4

[0036] The main structure of this embodiment is the same as that of any one of Embodiments 1-3, further, the installation gap between the locking disc 2 and the brake disc 3 is 0.5±0.05 mm.

[0037] Embodiment 5

[0038] The main structure of this embodiment is the same as that of any one of Embodiments 1-4, further, the locking disc 2 comprises three coaxial cylindrical segments connected in sequence, namely a large-diameter segment I 201, a medium-diameter segment 202 and a small-diameter segment I 203. The large-diameter segment I 201 is close to the brake disc 3, and a plurality of fan-shaped annular flanges are arranged on the outer side wall of the large-diameter segment I 201.

[0039] Embodiment 6

[0040] The main structure of this embodiment is the same as that of Embodiment 5, further, the end cover 8 comprises two coaxial cylindrical segments connected in sequence, namely a large-diameter segment II 801 and a small-diameter segment II 802. The center of the end cover 8 is provided with a through hole.

[0041] The large-diameter segment II 801 faces the brake disc 3. The large-diameter segment II 801 is provided with an annular groove II around the through hole. The annular groove II is in communication with the center through hole of the end cover 8. The locking disc 2 is arranged in the through hole of the end cover 8, and the fan-shaped annular flanges on the locking disc 2 are arranged in the annular groove II.

[0042] The small-diameter segment II 802 is provided with an annular groove III at one end facing the bearing cover 9, and the annular groove III is in communication with the center through hole of the end cover 8.

[0043] Embodiment 7

[0044] The main structure of this embodiment is the same as that of any one of Embodiments 5-6, further, the center through hole of the end cover 8, the groove wall of the annular groove III and the outer wall of the locking disc 2 sandwich a bearing chamber.

[0045] Example 8:

[0046] The main structure of this embodiment is the same as any one of Examples 1-7, and further, the bearing cover 9 is adapted to the end cover 8.

[0047] The bearing cover 9 is provided with a through hole at the center position, and one end of the locking disc 2 is located in the center through hole of the bearing cover 9, and the end face is flush with the end face of the bearing cover 9.

[0048] Example 9:

[0049] The main structure of this embodiment is the same as any one of Examples 1-8, and further, when the coil 5 is energized, the brake disc 3 is separated from the locking disc 2 and attracted to the iron core 4 under the action of electromagnetic force, and the lock is in the unlocked state.

[0050] When the coil 5 is de-energized, the brake disc 3 is separated from the iron core 4 and attached to the locking disc 2 under the action of the spring force, and the lock is in the braking state.

[0051] Example 10:

[0052] The main structure of this embodiment is the same as any one of Examples 1-9, and further, the coil 5 is fixed and integrated with the iron core 4 after being wound, which is used to reduce the installation space and prevent the impact vibration from affecting the insulation performance of the winding wire.

[0053] The bearing 10 is a 18 series deep groove ball bearing, the bearing 10 is pressed into the end cover 8 and is pressed tightly by the bearing cover 9, and the brake disc 3, the iron core 4 and the support sleeve 11 are fastened together by the screw 1. The gap between the iron core 4 and the brake disc 3 is limited by the support sleeve 11 and the end cover 8 to ensure the initial unlocking voltage.

[0054] The locking disc 2 transmits the locking torque, after the coil 5 is energized, the electromagnetic force is transmitted through the iron core 4 to attract the brake disc 3 to move to the left, the lock is unlocked, the locking disc 2 is separated from the brake disc 3, and the servo motor operates; after the coil 5 is de-energized, the electromagnetic force disappears, the spring force of the spring 6 pushes the brake disc 3 to attach to the locking disc 2, the lock is braked, and at this time the servo motor stops control.

[0055] The locking disc 2 is fixed in position by the bearing 10, and the existing installation and adjustment of the locking disc 2 and the brake disc 3 requires a gap of 0.5±0.05mm during installation, which is difficult to adjust.

Claims

1. An integrated, debug-free locking device, characterized in that: Includes screw (1), locking disc (2), brake disc (3), iron core (4), coil (5), spring (6), sleeve (7), end cap (8), bearing cap (9) and bearing (10); The iron core (4) is a hollow cylindrical structure; one end of the iron core (4) is provided with an annular groove I (401) around the central hole; a coil (5) is provided in the annular groove I (401); several grooves (402) and several blind holes (403) are provided at intervals on the iron core (4) around the annular groove I (401); a sleeve (7) is installed in the groove (401); the sleeve (7) is a tubular structure with one end closed and the other end open; the closed end of the sleeve (7) is away from the bottom of the groove (401); a spring (6) is installed in the sleeve (7); the two ends of the spring (6) are connected to the groove (401) and the closed end of the sleeve (7) respectively. The brake disc (3) is disposed between the iron core (4) and the locking disc (2); one side of the brake disc (3) faces the iron core (4) and the spring (6), and the other side faces the locking disc (2) and the end cap (8). The locking disc (2) has a stepped structure and is fitted with a stepped end cap (8) on the outside, so that a bearing chamber is sandwiched between the locking disc (2) and the end cap (8); the bearing (10) is assembled in the bearing chamber and fixed by the bearing cover (9); the brake disc (3), the end cap (8) and the bearing cover (9) are respectively provided with through holes I, through holes II and through holes III; the number and position of through holes I, through holes II and through holes III correspond one-to-one with the number and position of blind holes (403), and the screw (1) passes through through holes III, through holes II, through holes I and blind holes (403) to assemble the iron core (4), brake disc (3), end cap (8) and bearing cover (9) together.

2. The integrated, non-adjustable locking device according to claim 1, characterized in that: The blind hole (403) is T-shaped; a support sleeve (11) is provided between the stepped surface of the blind hole (403) and the end cap (8); the support sleeve (11) is located in the through hole I of the brake disc (3); the screw (1) is located in the support sleeve (11).

3. The integrated, non-adjustable locking device according to claim 1, characterized in that: A potting compound layer is provided between the coil (5) and the iron core (4).

4. The integrated, debug-free locking device according to claim 1, characterized in that: There is an installation gap of 0.5±0.05mm between the locking disc (2) and the brake disc (3).

5. The integrated, non-adjustable locking device according to claim 1, characterized in that: The locking disc (2) includes three coaxial cylindrical segments connected in sequence, namely large diameter segment I (201), medium diameter segment (202) and small diameter segment I (203); the large diameter segment I (201) is close to the brake disc (3), and the outer side wall of the large diameter segment I (201) is provided with several annular flanges at intervals.

6. The integrated, non-adjustable locking device according to claim 5, characterized in that: The end cap (8) includes two coaxial cylindrical segments connected in sequence, namely a large-diameter segment II (801) and a small-diameter segment II (802); the end cap (8) has a through hole in the center; The large diameter section II (801) faces the brake disc (3); the large diameter section II (801) is provided with the annular groove II around the through hole; the annular groove II is connected to the central through hole of the end cover (8); the locking disc (2) is provided in the through hole of the end cover (8), and the fan-shaped annular flange on the locking disc (2) is provided in the annular groove II; The small diameter section II (802) has an annular groove III at one end facing the bearing cover (9), and the annular groove III is connected to the central through hole (8) of the end cover.

7. The integrated, non-adjustable locking device according to claim 6, characterized in that: The bearing chamber is formed by the central through hole of the end cap (8), the groove wall of the annular groove III, and the outer wall of the locking disc (2).

8. The integrated, non-adjustable locking device according to claim 1, characterized in that: The bearing cover (9) is adapted to the end cover (8); a through hole is provided at the center of the bearing cover (9), and one end of the locking disc (2) is located in the center through hole of the bearing cover (9), and its end face is flush with the end face of the bearing cover (9).

9. The integrated, non-adjustable locking device according to claim 1, characterized in that: When the coil (5) is energized, under the action of electromagnetic force, the brake disc (3) separates from the locking disc (2) and is attracted to the iron core (4), and the lock is in the unlocked state; When the coil (5) is de-energized, under the action of the spring force, the brake disc (3) separates from the iron core (4) and fits into the locking disc (2), and the locking device is in a braking state.

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