Temperature control jaw electromagnetic clutch

Abstract

The utility model relates to the technical field of clutches, and provides a temperature control jaw electromagnetic clutch which comprises a transmission shaft, a magnet yoke, an electromagnetic coil, a movable plate and a driven flange, the magnet yoke is rotationally connected with the transmission shaft, the movable plate and the driven flange are in sliding connection and are relatively fixed in the circumferential direction, and the transmission shaft is provided with a chain wheel. The chain wheel and the movable plate are provided with tooth-shaped structures capable of being meshed with each other, an elastic piece used for enabling the movable plate to be away from the chain wheel is connected between the movable plate and the driven flange, the heating coil is arranged on the outer side of the electromagnetic coil, and a power outgoing line of the heating coil and a power outgoing line of the electromagnetic coil are mutually independent. After the heating coil is electrified, the clutch can be heated, the temperature of the clutch is increased, the function of ice melting is achieved, using is more convenient, the heating coil can be opened in advance, the function of a heat engine is achieved, and the clutch can reach the stable working temperature.

Description

TECHNICAL FIELD

[0001] The utility model relates to clutch technical field, specifically, relate to a temperature control cogwheel type electromagnetic clutch. BACKGROUND

[0002] The clutch usually includes driving part and driven part, and the driving part and the driven part are meshed with each other through the tooth shape structure similar to the tooth to realize power transmission, so this kind of clutch is called cogwheel type clutch, and this kind of clutch driven by electromagnetic force is called cogwheel type electromagnetic clutch.

[0003] In addition to the driving part and the driven part, the cogwheel type electromagnetic clutch usually includes the magnetic yoke, the electromagnetic coil arranged in the magnetic yoke, and the dynamic plate connected with the driven part, and the dynamic plate is usually slidable relative to the driven part in the axial direction and fixed relative to the driven part in the circumferential direction, under the unpowered state, the dynamic plate is away from the driving part under the action of the elastic part, and the power transmission is disconnected, after the electromagnetic coil is powered, the dynamic plate and the driving part are meshed through the tooth shape structure, and the power transmission is realized.

[0004] When the cogwheel type electromagnetic clutch is used in the severe cold environment, if the tooth shape structure is iced, the dynamic plate and the driving part cannot be meshed after the electromagnetic coil is powered, and the prior art usually solves the problem by manual deicing or heating deicing through the external heat source, and the use is relatively inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a temperature control cogwheel type electromagnetic clutch to solve the above-mentioned defects of the prior art.

[0006] The utility model realizes the following technical scheme:

[0007] A temperature control cogwheel type electromagnetic clutch, including transmission shaft, magnetic yoke, electromagnetic coil, dynamic plate and driven flange, the magnetic yoke is rotationally connected with the transmission shaft, the dynamic plate is slidably connected with the driven flange and is fixed relative to the driven flange in the circumferential direction, the transmission shaft is equipped with the cogwheel, the cogwheel and the dynamic plate are equipped with the tooth shape structure that can be meshed with each other, the elastic part for making the dynamic plate away from the cogwheel is connected between the dynamic plate and the driven flange, further including heating coil, the heating coil is arranged outside the electromagnetic coil, and the power supply lead of the heating coil and the power supply lead of the electromagnetic coil are independent of each other.

[0008] Optionally, the transmission shaft and the cogwheel are integrally formed.

[0009] Optionally, a plurality of through holes are arranged on the cogwheel in the circumferential direction.

[0010] Optionally, the through hole is in the arc strip structure.

[0011] Optionally, the elastic member is a spring, the driven plate is provided with a mounting counterbore at one end close to the toothed disc, the driven flange is provided with a threaded hole corresponding to the mounting counterbore, an adjusting screw is connected in the threaded hole, the head of the adjusting screw is located in the mounting counterbore, the elastic member is sleeved on the adjusting screw and is pressed between the bottom of the mounting counterbore and the head of the adjusting screw.

[0012] Optionally, the driven plate comprises a plate seat and an engaging disc, and the engaging disc is fixedly sleeved on the plate seat.

[0013] Optionally, the transmission shaft and the magnetic yoke are connected through a pair of first bearings.

[0014] Optionally, the transmission shaft and the driven flange are connected through a pair of second bearings.

[0015] The utility model discloses a technical scheme at least has following advantages and beneficial effects: the utility model discloses, add heating coil in existing toothed disc type electromagnetic clutch, the power supply lead of heating coil and the power supply lead of electromagnetic coil are independent of each other, that is, heating coil and electromagnetic coil can control on-off electricity independently, heating coil can heat clutch after electrifying, promotes clutch temperature, plays the role of helping to melt ice, uses more conveniently, and heating coil can also open in advance, plays a hot engine's role, makes clutch reach stable working temperature. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view half cutaway view of the temperature control toothed disc type electromagnetic clutch provided by the utility model;

[0017] Figure 2 It is a front view cutaway view of transmission shaft;

[0018] Figure 3 It is a right view of transmission shaft;

[0019] Reference signs: 1-transmission shaft, 101-toothed disc, 1011-through hole, 2-magnetic yoke, 3-electromagnetic coil, 4-heating coil, 5-driven plate, 501-engaging disc, 502-plate seat, 5021-insert block, 6-driven flange, 7-adjusting screw, 8-elastic member, 9-first bearing, 10-second bearing. DETAILED DESCRIPTION

[0020] REFERENCE Figure 1The utility model provides a temperature control cogwheel type electromagnetic clutch, including transmission shaft 1, magnetic yoke 2, electromagnetic coil 3, movable plate 5 and driven flange 6, magnetic yoke 2 is connected with transmission shaft 1 rotation, movable plate 5 is slidably connected with driven flange 6 and is opposite fixedly in circumference, transmission shaft 1 is equipped with cogwheel 101, and cogwheel 101 is equipped with the tooth profile structure that can interlock with movable plate 5, and the elastic member 8 for making movable plate 5 away from cogwheel 101 is connected between movable plate 5 and driven flange 6.In practical application, transmission shaft 1 is as power output shaft, and driven flange 6 connects driven part, in the de-energized state, movable plate 5 is away from cogwheel 101 under the action of elastic member 8, namely, there is gap between the tooth profile structure of interlock, and power transmission is disconnected, after the power of electromagnetic coil 3, movable plate 5 and cogwheel 101 are engaged through the tooth profile structure, and power transmission is realized.

[0021] On the basis, the clutch further includes a heating coil 4 in the embodiment, the heating coil 4 is arranged outside the electromagnetic coil 3, and the power supply lead of the heating coil 4 and the power supply lead of the electromagnetic coil 3 are independent of each other, that is, the heating coil 4 and the electromagnetic coil 3 can be independently controlled to be powered on or off, the heating coil 4 can heat the clutch after being powered on, the temperature of the clutch is improved, the function of helping to melt ice is played, and use is more convenient, the heating coil 4 can also be turned on in advance, a hot engine is played, and the clutch reaches a stable working temperature.

[0022] Reference Figure 2 And Figure 3 In the embodiment, the transmission shaft 1 and the cogwheel 101 are integrally formed to ensure good magnetic conductivity. Further, a plurality of through holes 1011 are arranged on the cogwheel 101 in the circumferential direction at intervals, which can effectively reduce the magnetic resistance and more powerfully attract the movable plate 5, and can also serve as heat dissipation holes to improve the heat dissipation efficiency. In the embodiment, the through holes 1011 are in arc strip structure, that is, the area of the through holes 1011 is increased, which is more conducive to reducing the magnetic resistance and improving the heat dissipation efficiency. In other embodiments, the transmission shaft 1 and the cogwheel 101 can of course be designed as a split type and be connected and fastened by fasteners (such as screws).

[0023] Reference Figure 1 In the embodiment, the transmission shaft 1 and the magnetic yoke 2 are connected by a pair of first bearings 9 to ensure smooth rotation of the transmission shaft 1. Further, the transmission shaft 1 and the driven flange 6 are connected by a pair of second bearings 10 in the embodiment, that is, the transmission shaft 1 penetrates through the entire clutch. It is easy to understand that in other embodiments, the transmission shaft 1 and the driven flange 6 can of course have no connection relationship, just like some cogwheel type electromagnetic clutches, as long as the movable plate 5 and the cogwheel 101 are coaxial.

[0024] In the embodiment, the movable plate 5 comprises a plate base 502 and an engaging disc 501, that is, the movable plate 5 is designed as a split type in the embodiment, so as to facilitate reducing machining difficulty. The engaging disc 501 is fixedly sleeved on the plate base 502, and the fixed connection mode is not limited, for example, the engaging disc 501 is sleeved on the outer side of the plate base 502, and then the two are locked by radial screws to realize relative fixation. It can be easily understood that the tooth-shaped structure is arranged on the engaging disc 501 to engage with the toothed disc 101, and the plate base 502 is slidably connected with the driven flange 6 and is circumferentially fixed, specifically, as an option, the plate base 502 is spaced apart from the end close to the driven flange 6 in the circumferential direction and is provided with a plurality of insertion blocks 5021, and the end close to the plate base 502 of the driven flange 6 is provided with insertion grooves corresponding to the insertion blocks 5021 in the circumferential direction, so that the plate base 502 can move axially relative to the driven flange 6, and the two cannot rotate relative to each other.

[0025] In the embodiment, the elastic member 8 is a spring, the end close to the toothed disc 101 of the movable plate 5 is provided with a mounting counterbore (on the basis of the above, the mounting counterbore is arranged on the plate base 502), the driven flange 6 is provided with a threaded hole corresponding to the mounting counterbore, the threaded hole is connected with the adjusting screw 7, the head of the adjusting screw 7 is located in the mounting counterbore, the elastic member 8 is sleeved on the adjusting screw 7 and is press-fitted between the bottom of the mounting counterbore and the head of the adjusting screw 7. It is worth noting that in this way, the compression degree of the elastic member 8 can be changed by screwing the adjusting screw 7, so as to adjust the restoring force of the elastic member 8 on the movable plate 5. It should be understood that the elastic member 8 is a spring only as an option but not as a limitation, and in other embodiments, the elastic member 8 can also be a spring piece, a disc spring and the like, and is riveted and fixed between the movable plate 5 and the driven flange 6.

[0026] The above only provides preferred embodiments of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A temperature-controlled jaw-coupled electromagnetic clutch, comprising a transmission shaft, a magnetic yoke, an electromagnetic coil, a moving plate and a driven flange, the magnetic yoke being rotationally connected with the transmission shaft, the moving plate being slidably connected with the driven flange and being circumferentially fixed opposite to each other, the transmission shaft being provided with a jaw disc, the jaw disc and the moving plate being provided with toothed structures capable of being engaged with each other, and an elastic member being connected between the moving plate and the driven flange for moving the moving plate away from the jaw disc, characterized in that, The heating coil is arranged outside the electromagnetic coil, and the power supply lead of the heating coil is independent of the power supply lead of the electromagnetic coil.

2. The temperature-controlled mortise electromagnetic clutch of claim 1, wherein, The transmission shaft and the tooth disc are integrally formed.

3. The temperature-controlled mortise electromagnetic clutch of claim 2, wherein, A plurality of through holes are arranged on the tooth disc in a circumferential direction.

4. The temperature-controlled mortise electromagnetic clutch of claim 3, wherein, The through holes are in an arc strip structure.

5. The temperature-controlled mortise electromagnetic clutch according to any one of claims 1-4, characterized in that, The elastic member is a spring, one end of the movable plate close to the tooth disc is provided with a mounting counterbore, a threaded hole is arranged at the mounting counterbore of the driven flange, an adjusting screw is connected in the threaded hole, the head of the adjusting screw is located in the mounting counterbore, the elastic member is sleeved on the adjusting screw and is pressed between the bottom of the mounting counterbore and the head of the adjusting screw.

6. The temperature-controlled mortise electromagnetic clutch according to any one of claims 1-4, characterized in that, The movable plate comprises a plate seat and an engaging disc, and the engaging disc is fixedly sleeved on the plate seat.

7. The temperature-controlled mortise electromagnetic clutch according to any one of claims 1-4, characterized in that, The transmission shaft and the magnetic yoke are connected through a pair of first bearings.

8. The temperature-controlled mortise electromagnetic clutch according to any one of claims 1-4, characterized in that, The transmission shaft and the driven flange are connected through a pair of second bearings.

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