CN217168315U

CN217168315U - Multi-finger mechanism and locking device

Info

Publication number: CN217168315U
Application number: CN202123433627.0U
Authority: CN
Inventors: 李力
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a multi-finger mechanism, which is applied to a constraint tray of a battery; a locking device with a multi-finger mechanism is also disclosed. The multi-finger mechanism comprises a main body and more than two pulling fingers. More than two pulling fingers are arranged on the main body, and the outer surfaces of the pulling fingers along the length direction are all arc surfaces. The pulling fingers on the multi-finger mechanism are provided with arc surfaces, when the pulling fingers are meshed with a lead screw on a constraint tray of a battery, the arc surfaces on the pulling fingers can be in contact with the lead screw, and the contact between the pulling fingers and the lead screw is point contact due to the fact that the contact surfaces of the pulling fingers and the lead screw are arc surfaces, so that the problem that the pulling fingers fall off powder can be effectively solved, and the battery short circuit explosion accident caused by the fact that scrap iron enters electrolyte of the battery can be effectively prevented. The locking device can accurately control the multi-finger mechanism to rotate, so that the restraint increasing or restraint reducing precision of the battery restraint tray is higher, and the technical requirements are met.

Description

Multi-finger mechanism and locking device

Technical Field

The utility model relates to a spanner, in particular to indicate mechanism and locking device more.

Background

When the battery pressurizes or decompresses in restricting the tray, need carry out release pressure or increase pressure through the spanner on the locking device and the pin cooperation on the tray lead screw, traditional spanner carries out the interlock back with the trapezoidal lead screw connecting pin on the equipment of restricting, spanner and pin are at the in-process of transmission power, and the spanner produces a large amount of iron fillings easily, and wearing and tearing are serious, also seriously influences battery technology and performance simultaneously, if iron cuts and gets into the incident such as electrolyte probably arouses short circuit explosion.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a indicate mechanism more can release pressure or increase pressure when can be to restricting the tray, can also reduce the wearing and tearing that indicate the mechanism more, and then reducible a large amount of iron fillings prevent to take place the incident.

The utility model discloses still provide a locking device who has above-mentioned many finger mechanisms.

According to the utility model discloses a indicate mechanism more of embodiment of first aspect, indicate the mechanism more and be applied to on the restraint tray of battery. The multi-finger mechanism comprises a main body and more than two pulling fingers. More than two pulling fingers are arranged on the main body, and the outer surfaces of the pulling fingers along the length direction are all arc surfaces.

According to the utility model discloses indicate the mechanism more, have following beneficial effect at least: the pulling fingers on the multi-finger mechanism are provided with arc surfaces, and the multi-finger mechanism can be applied to the restraint of the restraint tray for adjusting the battery. When the pulling fingers are meshed with the lead screw on the constraint tray of the battery, the arc surfaces on the pulling fingers can be in contact with the lead screw, and the contact surfaces of the pulling fingers and the pins on the lead screw are arc surfaces, so that stress concentration can be effectively avoided, mutual influence of external force on the pulling fingers can be weakened, the problem of powder falling of the pulling fingers can be effectively solved, and the battery short circuit explosion accident caused by the fact that scrap iron enters into electrolyte of the battery can be effectively prevented.

According to some embodiments of the invention, the pulling fingers are detachably mounted on the main body.

According to some embodiments of the present invention, the main body is provided with an installation portion, the installation portion is provided with a receiving hole, and the pulling finger is disposed in the receiving hole.

According to some embodiments of the invention, the pulling finger is provided with six.

According to some embodiments of the invention, the pulling fingers are cylindrical.

According to some embodiments of the present invention, the end of the pulling finger is designed as a spherical surface, which is tangent to the cylindrical arc surface of the pulling finger.

According to a second aspect of the present invention, a locking device comprises a multi-finger mechanism as described in any one of the above embodiments.

According to the utility model discloses locking device has following beneficial effect at least: the locking device can drive the wrenching fingers on the multi-finger mechanism to rotate; therefore, the multi-finger mechanism on the locking device can be used for increasing or reducing the restraint of the battery restraint tray, and can prevent scrap iron from being generated when the battery restraint tray is increased or reduced to influence the performance of the battery.

According to some embodiments of the present invention, the locking device further comprises a driving assembly, an output end of the driving assembly is connected to the multi-finger mechanism.

According to some embodiments of the invention, the drive assembly comprises a motor and a gear set, the multi-finger mechanism passes through the gear set with the output of the motor is connected.

According to some embodiments of the utility model, locking device still includes the follow-up subassembly, the follow-up subassembly includes the slide, fixes nut on the slide and with nut screw-thread fit's second lead screw, the second lead screw sets up on the slide, the second lead screw with drive assembly passes through band pulley group and connects.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a prior art wrench for a battery restraint tray;

fig. 2 is a schematic mechanism diagram of a multi-finger mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the multi-fingered mechanism shown in FIG. 2;

fig. 4 is a schematic view of the multi-finger mechanism of the embodiment of the present invention applied to a battery restraint tray;

FIG. 5 is an enlarged partial schematic view of A of the multi-fingered mechanism shown in FIG. 4;

fig. 6 is a schematic structural diagram of a locking device according to an embodiment of the present invention.

Reference numerals:

the device comprises a restraint tray 1, a first lead screw 2, a pin 3, a wrench 4 and a multi-finger mechanism 5;

a main body 10;

a finger 20 and a screw 21;

locking device 30, drive assembly 31, motor 311, slide 321, nut 322, second lead screw 323, pulley set 324.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, a wrench 4 shown in fig. 1 is a wrench 4 in the prior art, and multiple fingers on the wrench 4 engage pins on a battery trapezoidal first lead screw 2, so that the first lead screw 2 is driven by the multiple fingers to rotate, and the restraint tray 1 is further driven to perform an increasing or decreasing motion. However, when the multi-finger of the wrench 4 interacts with the pin of the first lead screw 2, due to stress concentration, when the constraint of the constraint tray 1 is increased or decreased, iron chips are generated due to the friction between the pin of the first lead screw 2 and the notch of the multi-finger of the wrench 4, and the generated iron chips enter the battery, thereby affecting the performance of the battery. To this end, a new type of multi-finger mechanism is proposed to replace the prior art wrench 4.

Referring to fig. 2 to 5, according to the multi-finger mechanism of the embodiment of the first aspect of the present invention, the multi-finger mechanism 5 can be applied to the restraint tray 1 of the battery. The multi-fingered mechanism 5 includes a body 10 and two or more pulling fingers 20. More than two pulling fingers 20 are arranged on the main body 10, and the pulling fingers 20 are all arc surfaces along the length direction of the pulling fingers.

The pulling fingers 20 on the multi-finger mechanism 5 have arc surfaces, so that the multi-finger mechanism 5 can be applied to the restraint of the restraint tray for adjusting the battery. When the pulling finger 20 is engaged with the pin 3 of the first lead screw 2 on the battery restraint tray 1, the arc surface on the pulling finger 20 can be contacted with the pin 3 of the lead screw, and the contact surface between the pulling finger 20 and the first lead screw 2 is the arc surface, so that stress concentration is avoided, the problem that the pulling finger 20 loses powder can be effectively solved, the occurrence of battery short circuit explosion accidents caused by the fact that scrap iron enters the electrolyte of the battery can be effectively prevented, and the battery has good performance.

The multi-finger mechanism 5 has a circular arc surface on the plate finger 20, and thus has excellent performance in adjusting the restraint of the battery restraint tray. The pulling fingers 20 of the multi-finger mechanism 5 have gaps therebetween, and may be applied to other aspects, such as loosening bolts and nuts, and the application scenario of the multi-finger mechanism is not specifically limited in this embodiment.

Referring to fig. 2 to 3, in some embodiments of the present invention, the pulling fingers 20 are detachably mounted on the main body 10. An external thread is provided on one end of the pulling finger 20, and an internal thread matching with the external thread can be provided on the main body 10, and the pulling finger 20 can be detachably mounted on the main body 10 through the matching of the internal thread and the external thread. It can be understood that the separate design of the body 10 and the pulling fingers 20 facilitates the machining of the body 10 and the pulling fingers 20, even though the multi-fingered mechanism 5 is formed by machining, the threaded connection facilitates the assembly of the multi-fingered mechanism 5, and the later maintenance cost is low. If one of the pulling fingers 20 is broken or worn, the pulling finger 20 can be replaced independently without replacing the main body 10, so that the maintenance cost caused by replacing the whole multi-finger mechanism 5 is avoided.

Referring to fig. 3, in some embodiments of the present invention, further, the pulling fingers 20 are detachably mounted on the main body 10, and besides the above-mentioned structure of the screw connection, the pulling fingers 20 can be disposed on the main body 10 by screws 21. It can be understood that a mounting portion is provided on the body 10 and a receiving hole is provided in the mounting portion, and the plate finger 20 is disposed in the receiving hole. That is, the body 10 is formed with a counter bore, one end of the thumb ring 20 is formed with an internal threaded bore, the end of the thumb ring 20 formed with the internal threaded bore is inserted into the counter bore of the body 10, and the thumb ring 20 is detachably mounted to the body 10 by coupling the internal threaded bore of the thumb ring 20 with a screw 21. If the pulling finger 20 is removed, the screw 21 can be unscrewed and the pulling finger 20 can be removed. The screws 21 are attached in a manner that facilitates removal of the wrenching fingers 20.

It should be noted that, in addition to the above mentioned threaded connection and connection by the screw 21, the detachable installation manner of the pulling fingers 20 of the multi-finger mechanism 5 can be even detachable connection by means of a snap connection, so in the embodiment of the present invention, the detachable installation manner of the pulling fingers 20 is not specifically limited, and the pulling fingers 20 can be detached after completion.

Referring to fig. 2, 4 and 5, in some embodiments of the present invention, the pulling fingers 20 are provided with six. But the pin 3 of joint on first lead screw 2 between two adjacent wrenching fingers 20, through cooperation between the two, rotatable first lead screw 2, and then add the restraint or subtract the restraint to the restraint tray 1 of battery. It should be noted that the number of the pulling fingers 20 on the multi-finger mechanism 5 is not specifically limited, and may be 4 or 8, and in the embodiment of the present invention, the pulling fingers are not specifically limited, and can be engaged with the pins 3 on the first battery lead screw 2. It can also be understood that a plurality of mounting holes for mounting the pulling fingers 20 on the main body 10 may be provided, the number of the pulling fingers 20 may be adjusted according to different first lead screws 2, and since the positions of the mounting holes on the main body 10 are fixed, the pulling fingers 20 do not need to be debugged again when the pulling fingers 20 are mounted or replaced, which may greatly shorten the debugging time and is more beneficial to the use of the multi-finger mechanism 5.

Referring to fig. 2 and 3, in some embodiments of the present invention, the pulling fingers 20 are cylindrical. Certainly, in order to realize point contact between the pulling finger 20 and the pin 3 on the first lead screw 2, it is only required to ensure that one side of the pulling finger 20 contacting the pin 3 is an arc surface or an arc surface, so in this embodiment, the pulling finger 20 is cylindrical only, and the shape of the pulling finger 20 is not specifically limited.

Referring to fig. 2 and 3, in some embodiments of the present invention, the end of the pulling finger 20 is designed as a spherical surface, and the spherical surface is tangent to the cylindrical arc surface of the pulling finger 20. The spherical surface of the ball head facilitates the guiding of the multi-finger mechanism 5 into the first lead screw 2, so that the pulling fingers 20 are more favorably clamped with the pins 3 on the first lead screw 2, the acting force during mutual contact is reduced, and the generation of iron cutting is further favorably reduced.

In a second aspect, the present invention also provides a locking device 30 having the above-mentioned multi-finger mechanism 5.

Referring to fig. 6, according to the locking device 30 of the second aspect of the present invention, the locking device 30 includes the multi-finger mechanism 5 of any of the above embodiments, and the locking device 30 can drive the multi-finger mechanism 5 to rotate, so that the multi-finger mechanism 5 can drive the first lead screw 2 on the restraint tray 1 of the battery to rotate, and further increase or decrease the restraint for the battery restraint tray 1, and at the same time, can prevent the scrap iron from being generated when increasing or decreasing the restraint for the battery restraint tray 1 and affecting the performance of the battery.

Referring to fig. 6, in some embodiments of the second aspect of the present invention, the locking device 30 may comprise a driving assembly 31, and the output end of the driving assembly 31 is connected to the multi-finger mechanism 5. The driving assembly 31 may include a motor 311 and a gear set (not shown), an output end of the motor 311 is connected to the gear set, and an end of the multi-finger mechanism 5 away from the pulling finger 20 is connected to the gear set, so that the motor 311 can drive the gear to rotate, thereby driving the multi-finger mechanism 5 to rotate, and further driving the first lead screw 2 on the battery restraint tray 1 to rotate. The gear set can adopt a bevel gear set, and the motor 311 can be vertically arranged by reversing the bevel gear set, so that the transverse space can be saved; of course, transmission gears such as spur gears and helical gears can also be used.

It should be noted that the driving assembly 31 may also adopt a structural form of a gear rack, and the rack is pushed to move so as to drive the gear to rotate, and finally the rotating gear drives the multi-finger mechanism 5 to rotate. Therefore, the present invention does not specifically limit the driving assembly 31, i.e., the multi-finger mechanism 5 can be driven to rotate.

Referring to fig. 6, in some embodiments of the second aspect of the present invention, the locking device 30 further includes a follower assembly, the follower assembly includes a sliding seat 321, a nut 322 fixed on the sliding seat 321, and a second lead screw 323 in threaded fit with the nut 322, the second lead screw 323 is disposed on the sliding seat 321, and the second lead screw 323 is connected to the driving assembly 31 through a pulley set 324. Specifically, the output end of the driving assembly 31 drives the pulley set 324 to rotate the second lead screw 323, and the second lead screw 323 drives the nut 322 engaged therewith to perform translation, so that the nut 322 moves on the sliding base 321 along the axial direction of the second lead screw 323. Finally, the multi-finger mechanism 5 is driven to horizontally move along the sliding seat 321, so that the cooperation action between the pulling finger 20 and the first lead screw 2 on the battery restraint tray 1 is completed, the pulling finger 20 drives the first lead screw 2 to rotate, and the locking of the pulling finger 20 on the battery restraint tray 1 is further completed.

It should be noted that the follow-up assembly may include an air cylinder and a slide rail, and the output end of the air cylinder pushes the multi-finger mechanism 5 to slide back and forth on the slide rail; the follow-up component can also comprise a motor, a gear and a rack, the multi-finger mechanism 5 is connected with the rack, the motor drives the gear to rotate, the rack is further driven to move, and finally the multi-finger mechanism 5 is driven to be matched with or separated from the first lead screw 2. The follow-up subassembly replaces manual assembly, and the cooperation of the multi-finger mechanism 5 and the first lead screw 2 of being convenient for improves the efficiency that the battery was restrained tray 1 and is restrained.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A multi-fingered mechanism, comprising:

a main body; and

the outer surfaces of the pulling fingers along the length direction are all arc surfaces.

2. A multi-fingered mechanism according to claim 1, wherein the trigger fingers are removably mounted on the body.

3. A multi-fingered mechanism according to claim 1 or 2, characterized in that a mounting portion is provided on the body, said mounting portion being provided with a receiving hole, and the thumb finger being arranged in said receiving hole.

4. A multi-fingered mechanism according to claim 1, wherein six wrenching fingers are provided.

5. A multi-fingered mechanism according to claim 1, wherein said trigger fingers are cylindrical.

6. The multi-fingered mechanism according to claim 5, wherein the ends of the pulling fingers are designed as spherical surfaces that are tangent to the cylindrical curved surfaces of the pulling fingers.

7. A locking device comprising a multi-fingered mechanism according to any of claims 1 to 6.

8. The locking device of claim 7, further comprising a drive assembly, an output of the drive assembly being coupled to the multi-fingered mechanism.

9. The latch mechanism of claim 8 wherein said drive assembly includes a motor and a gear train, said multi-fingered mechanism being connected to an output of said motor through said gear train.

10. The locking device according to claim 8, further comprising a follower assembly, wherein the follower assembly comprises a sliding base, a nut fixed on the sliding base, and a second lead screw in threaded fit with the nut, the second lead screw is arranged on the sliding base, and the second lead screw is connected with the driving assembly through a pulley set.