CN216265810U - Split pin splitting device - Google Patents

Abstract

The utility model relates to a split pin splitting device which comprises a splitting piece, a fixing frame for fixing a bolt, a locking device for fixing a split pin and an angle limiting structure for limiting the splitting angle of a hinge at the tail part of the split pin, wherein the locking device, the splitting piece and the angle limiting structure are all arranged on the fixing frame, the head part and the tail part of the split pin extend out of two ends of the fixing frame, the locking device is arranged at one end of the head part of the split pin, the splitting piece and the angle limiting structure are arranged at one end of the tail part of the split pin, and the splitting piece is rotated to split two hinges at the tail part of the split pin. The splitting machine is simple and compact in structure and easy to operate, and can greatly improve splitting operation efficiency and quality.

Description

Split pin splitting device

Technical Field

The utility model relates to the technical field of cotter pins, in particular to a cotter pin splitting device.

Background

In the railway vehicle manufacturing industry, many parts use the bolt to fasten, and its locking management requirement is comparatively strict moreover, and after the bolt fastening, still need to adopt the mechanical system to lockingly, split pin locking is the mode that generally adopts at present, and the application is very extensive. The split pin locking operation needs to ensure that the split pin does not generate circumference and play up and down, the angle meets the size requirement, the anti-falling performance is achieved, the split quality of the split pin also directly influences the assembly quality of parts and the running safety of a vehicle, and the split mode of the split pin and the angle after the split play a great influence on the running of the vehicle.

The existing split pin installation operation mostly adopts manual splitting and is limited by installation position and force, and the manual splitting mode has the following problems:

1. the process requires that the cotter opening angle needs to be controlled between 60 degrees and 90 degrees, the opening angle is visually checked in the operation process, and then an angle measuring instrument is used for measuring whether the opening angle meets the requirements or not, so that time and labor are wasted, repeated operation is realized, the cycle time is long, the splitting angle and the splitting degree cannot be unified, and the quality of the split cotter after splitting cannot be guaranteed.

2. After the split pin is developed, the split pin is required to be prevented from moving up and down in the pin hole, and the split pin is required to be knocked by using a hammer. The split pin has the advantages that the split pin is bent at the tail part, broken and the like due to different forces applied by operating personnel, and the split pin cannot be prevented from moving up and down when being opened up, so that the split pin is scrapped.

3. The operation process has a plurality of tools, including pins, hammers, wedges, angle measuring instruments and the like, the preparation work and the operation process are time-consuming and labor-consuming, and the measuring instruments are very easy to damage in the operation process.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing the cotter splitting device which has simple and compact structure and easy operation and can greatly improve the splitting operation efficiency and quality.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a split pin splitting device, includes splitting, is used for fixing bolt's mount, is used for fixed split pin's locking device and is used for injecing the split pin afterbody angle limit structure of splitting the angle of folding paper, locking device, splitting and angle limit structure all install on the mount, the head and the afterbody of split pin stretch out from the both ends of mount, locking device installs in the one end of split pin head, splitting and angle limit structure install in the one end of split pin afterbody, rotate two of splitting the split pin afterbody are folded paper.

Furthermore, the whole fixed frame is of a square block structure, and the fixed frame is provided with a positioning groove for accommodating the tail part of the bolt, a first opening for extending out of the head part of the cotter pin and a second opening for extending out of the tail part of the cotter pin.

Furthermore, the splitting piece is arranged on the fixed frame through a telescopic mechanism.

Furthermore, telescopic machanism is the telescopic link, and the one end of telescopic link is fixed on the mount, and the piece is rotatable to be installed at the other end of telescopic link to split.

Further, locking device includes double-screw bolt, handle and dead lever, the one end of dead lever with mount fixed connection, the other end of dead lever have the screw hole, with double-screw bolt threaded connection install at the top of double-screw bolt the handle, the fitting pin that is used for locking split pin head is installed to the other end of double-screw bolt.

Furthermore, the locking pin is provided with a groove for accommodating the head of the cotter pin, and the head of the cotter pin is embedded into the groove to realize locking and limiting.

Furthermore, the angle limiting structure is a limiting block arranged on the fixing frame, two limiting inclined planes for limiting the opening angle of the two hinges at the tail part of the split pin are arranged on the limiting block, and the tail part of the split pin penetrates through the middle of the two limiting inclined planes.

Furthermore, the limiting block is composed of two independent limiting clamping blocks, the two limiting clamping blocks are detachably mounted on the fixing frame respectively, and the two limiting clamping blocks are arranged on two sides of the cotter pin.

Furthermore, the fixing frame is provided with two sliding grooves with one ends penetrating through, each limiting clamping block is provided with a matched sliding block, and the sliding blocks are correspondingly inserted into the sliding grooves to realize the disassembly and assembly of the limiting clamping blocks.

Furthermore, a limiting groove for accommodating a cotter hinge is arranged on the limiting inclined plane of the limiting clamping block.

In summary, compared with the prior art, the cotter splitting device of the present invention has the following advantages:

(1) the device is integrated with the fixing of bolt, the fixing of split pin and the control of splitting angle, realizes compressing tightly and opening up automatically of split pin, and overall structure is simple compact, and easily operation has moreover reduced special person's measuring step, has saved the auxiliary operation of using instruments such as angle measurement appearance, hand hammer, wedge, has realized the standardization of operation regulation, the standardization of operation method, has promoted operating efficiency and operation quality by a wide margin, has also practiced thrift human cost and manufacturing cost.

(2) The device passes through locking device and can lock the split pin when the operation, effectively restricts the split pin and takes place circular motion and play from top to bottom, uses self angle limit structure to control the angle of splitting simultaneously, has guaranteed the once success rate of angle and the uniformity of angle after the split pin opens up, need not to use angle measurement appearance to measure, has stopped to use the hammer to strike the damage that causes the split pin, has further promoted operating efficiency and operation quality by a wide margin, accords with standardized operation production requirement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic structural view of the cleaving apparatus of the present invention (after installation of bolts);

FIG. 2 is a schematic view of the construction of the splitting apparatus of the present invention (without bolts installed);

FIG. 3 is a front view of FIG. 2;

fig. 4 is a side view of fig. 3.

As shown in fig. 1 to 4, the splitting member 1, the fixing frame 2, the locking device 3, the stud 31, the handle 32, the fixing rod 33, the vertical rod 331, the horizontal rod 332, the threaded hole 34, the locking pin 35, the groove 351, the angle limiting structure 4, the bolt 5, the split pin 6, the hinge 7, the positioning groove 8, the first opening 9, the second opening 10, the telescopic rod 11, the limiting inclined plane 12, the limiting clamping block 13, the sliding groove 14, the sliding block 15, the limiting groove 16, the screw rod 17, and the nut 18.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, the cotter splitting device provided by the utility model comprises a splitting piece 1, a fixing frame 2, a locking device 3 and an angle limiting structure 4. The fixing frame 2 is used for fixing the bolt 5, the split pin 6 is installed at the tail end of the bolt 5, the locking device 3 is used for fixing the split pin 6, the splitting piece 1 is used for splitting the two hinges 7 at the tail part of the split pin 6, the angle limiting structure 4 is used for limiting the splitting angle of the two hinges 7 at the tail part of the split pin 6, and the splitting angle is guaranteed to be a standard angle of the process requirement. The locking device 3, the splitting piece 1 and the angle limiting structure 4 are all arranged on the middle fixing frame 2.

As shown in fig. 1 to 3, in the present embodiment, in order to make the device simple and compact, preferably, the fixing frame 2 is a square block, the fixing frame 2 is provided with a positioning groove 8 for accommodating the end of the bolt 5, the positioning groove 8 is a cylindrical groove, the diameter of which matches the diameter of the end of the bolt 5, the fixing frame 2 is further provided with a first opening 9 for extending the head of the cotter 6 and a second opening 10 for extending the tail of the cotter 6, the first opening 9 and the second opening 10 are communicated with the middle positioning groove 8, the end of the bolt 5 provided with the cotter 6 is inserted into the positioning groove 8, the cotter 6 is inserted into the first opening 9 and the second opening 10, the head of the cotter 6 is disposed outside the first opening 9, and the tail of the cotter 6 is disposed outside the second opening 10.

As shown in fig. 2 to 4, a locking device 3 is mounted on one end of the fixing frame 2 at the head of the cotter 6, and the locking device 3 comprises a stud 31, a handle 32 and a fixing rod 33. One end of the fixing rod 33 is fixedly connected with the fixing frame 2, and the other end of the fixing rod 33 is provided with a threaded hole 34. In this embodiment, the fixing rod 33 is in an inverted L shape, the bottom end of the vertical rod 331 in the fixing rod 33 is installed on the top surface of the fixing frame 2 (the surface with the first opening 9), the fixing rod 33 and the fixing frame 2 may be directly welded together, or an internal threaded hole (not shown) may be formed in the fixing frame 2, and the end of the fixing rod 33 and the threaded hole of the fixing frame 2 are fastened and connected through a thread. The end part of a horizontal rod 332 in the fixing rod 33 is provided with a threaded hole 34, the horizontal rod 332 is parallel to the top surface of the fixing frame 2, the stud 31 is in threaded connection with the threaded hole 34 on the fixing rod 33, the stud 31 is perpendicular to the top surface of the fixing frame 2, the top of the stud 31 is provided with a handle 32, the other end of the stud 31 is provided with a locking pin 35 for locking the head of the cotter 6, and the handle 32 is rotated, namely the distance between the locking pin 35 and the fixing frame 2 is adjusted, so that the cotter 6 is convenient to disassemble and assemble after the operation is started and finished.

In this embodiment, have the recess 351 that is used for holding 6 heads of split pin on fitting pin 35, the diameter of recess 351 and the diameter phase-match of 6 heads of split pin, 6 heads of split pin imbed in recess 351, it is spacing to realize the locking of split pin 6, guarantee that split pin 6 can not take place to rotate and play from top to bottom at the operation in-process, realize 6 fixed of split pin, 6 locking split pin 6 through fitting pin 35, the damage that 6 bodies of split pin caused is strikeed to the hammer among the prior art has been avoided, can not lead to the fact impact and surface quality loss to split pin 6, also be favorable to guaranteeing the quality of equipment simultaneously.

As shown in fig. 2 to 4, the splitting member 1 is located at one end of the tail portion of the cotter 6, and the splitting member 1 is rotated to swing left and right, so that the two hinges 7 at the tail portion of the cotter 6 can be split.

In this embodiment, for the split pin 6 of cooperation different length and different angle control requirements, split 1 passes through telescopic machanism and installs on mount 2 for conveniently adjust according to splitting position. In order to simplify the structure and facilitate the adjustment of the length, the telescopic mechanism is preferably in the form of a telescopic rod 11, and one end of the telescopic rod 11 is fixed to the fixing frame 2, specifically, to the back surface (the other surface opposite to the positioning slot 8) of the fixing frame 2, or of course, may be installed on the bottom surface (i.e., the surface on which the second opening 10 is formed) of the fixing frame 2.

One end of the telescopic rod 11 can be directly welded on the fixing frame 2, or a threaded hole (not shown in the figure) can be formed in the fixing frame 2, and the telescopic rod 11 is installed in the threaded hole through threads. The piece 1 that splits is rotatable installs at the other end of telescopic link 11, and after adjusting length, operating personnel can be through controlling the rotation piece 1 that splits, makes two folds paper 7 of split pin 6 afterbody split to both sides.

As shown in fig. 1 to 3, the angle limiting structure 4 is located at one end of the tail of the cotter 6, and is on the same side as the splitting piece 1. Preferably in this embodiment, angle limit structure 4 is for installing the stopper on mount 2, have two spacing inclined planes 12 of two opening angles of folding paper of restriction cotter tail portion on the stopper, the contained angle of two spacing inclined planes 12 is the standard opening angle that industry technology stipulated, the afterbody of split pin 6 passes from the centre of two spacing inclined planes 12, it splits to open piece 1 left and right sides rotation back, make two spacing inclined planes 12 directions of folding paper 7 to both sides separately, until folding paper 7 and the laminating of the spacing inclined plane 12 that corresponds, the contained angle between two folding paper 7 is standard opening angle this moment.

More preferably, the limiting block is composed of two independent limiting clamping blocks 13, the two limiting clamping blocks 13 are respectively fixed on the fixing frame 2, a limiting inclined plane 12 is arranged on each limiting clamping block 13, the two limiting inclined planes 12 are oppositely arranged, the two limiting clamping blocks 13 are arranged on two sides of the second opening 10, and the cotter pin 6 penetrates out of the second opening 10 and is just located between the two limiting inclined planes 12.

In order to improve the universality of the device, preferably, the two limiting clamping blocks 13 are detachably mounted on the fixed frame 2, and an operator can replace the limiting clamping blocks 13 with the limiting inclined planes 12 with different inclination angles according to different opening angle requirements.

In this embodiment, preferably, two sliding grooves 14 are formed in the fixing frame 2, one end of each sliding groove 14 penetrates through the corresponding sliding groove, a sliding block 15 is arranged on each limiting clamping block 13, the other end of each sliding groove 14 is a blind end, the sliding blocks 15 are prevented from sliding excessively, and meanwhile, the mounting positions of the limiting clamping blocks 13 are also limited, so that the mounting positions of the two limiting clamping blocks 13 are symmetrical. The sliding grooves 14 and the sliding blocks 15 are preferably of L-shaped structures, and the sliding blocks 15 are inserted into the corresponding sliding grooves 14 from one side to achieve dismounting of the limiting clamping blocks 13.

As shown in fig. 1 and 2, a limit groove 16 is further arranged on the limit inclined plane 12 of the limit clamping block 13, the hinge 7 is just embedded into the corresponding limit groove 16 after being split, the splitting angle is controlled, the splitting quality is guaranteed, the one-time success rate of the angle and the consistency of the angle after the split pin 6 is opened are guaranteed, the angle measurement is not required to be carried out by additionally using an angle measuring instrument, the operation is convenient, the auxiliary operation of using tools such as the angle measuring instrument, a hand hammer, a wedge and the like is also saved, and the measuring steps of a specially-assigned person are reduced.

The cleavage process is described in detail below:

1. firstly, the stud 31 and the locking pin 35 are rotated to the uppermost end by adjusting the handle 32, the tail end of the bolt 5 is inserted into the positioning groove 8, the split pin 6 is inserted into the first opening 9 and the second opening 10, the head part of the split pin 6 is arranged on the outer side of the first opening 9, and the tail part of the split pin 6 is arranged on the outer side of the second opening 10.

2. The handle 32 is adjusted to move the locking pin 35 towards the direction of the cotter pin 6, and finally the head of the cotter pin 6 is embedded into the groove 351 to limit the cotter pin 6, so that the cotter pin 6 is prevented from rotating and moving up and down in the operation process.

3. Through the telescopic link 11 that the adjustment reciprocated, make split 1 arrange reasonable position in, rotate split 1 and make its horizontal hunting, fold paper 7 with two of split pin 6 afterbody and split to finally imbed respectively in the spacing groove 15 of the spacing clamp splice 13 that corresponds, guarantee two angles of opening of folding paper 7 of split pin 6, satisfy the angle of split pin 6 and open up the requirement.

The device is fixed with the bolt, the split pin is fixed and the control of splitting angle is integrated into an organic whole, realize compressing tightly and opening up automatically of split pin, overall structure is simple compact not only, and easily operation has saved the auxiliary operation who uses instruments such as angle measurement appearance, the hand hammer, wedge, reduced special person's measuring step simultaneously, realize the standardization of operation rule, the standardization of operation method, operating efficiency and operating quality have been promoted by a wide margin, satisfy to urban rail vehicle bogie, EMUs bogie frame angle control requirement, human cost and manufacturing cost have also been reduced. When assembling according to current operation technology, need 5 minutes from the frock is prepared to the operation completion, use the device after, every only needs 1 minute, and efficiency promotes 4 times at every turn, has changed original material instrument preparation cycle, adjusts measurement cycle repeatedly, the rework repair cycle of material damage etc..

The device passes through locking device and can lock the split pin when the operation, effectively restrict the split pin and take place circular motion and play from top to bottom, use self angle limit structure to control the angle of splitting simultaneously, the angle once success rate and the uniformity of angle after having guaranteed the split pin and opened up, need not to use angle measurement appearance to measure, the damage of using the hand hammer to strike and causing the split pin has been stopped, and then operating efficiency and operating quality have been promoted by a wide margin, accord with standardized operation production requirement, it is extravagant also to be favorable to avoiding daily use angle measurement appearance's damage simultaneously.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A cotter splitting device is characterized in that: including splitting, the mount that is used for fixing bolt, be used for fixing the locking device of split pin and be used for injecing the split pin afterbody angle limit structure of splitting the angle of folding paper, locking device, splitting and angle limit structure all install on the mount, the head and the afterbody of split pin stretch out from the both ends of mount, locking device installs in the one end of split pin head, splitting and angle limit structure install in the one end of split pin afterbody, rotate splitting two of split pin afterbody are folded paper.

2. A cotter splitting apparatus according to claim 1, wherein: the whole fixing frame is of a square block structure, and the fixing frame is provided with a positioning groove for accommodating the tail part of the bolt, a first opening for extending out of the head part of the cotter pin and a second opening for extending out of the tail part of the cotter pin.

3. A cotter splitting apparatus according to claim 1, wherein: the splitting piece is arranged on the fixed frame through a telescopic mechanism.

4. A cotter splitting apparatus according to claim 3, wherein: the telescopic mechanism is a telescopic rod, one end of the telescopic rod is fixed on the fixing frame, and the splitting piece is rotatably arranged at the other end of the telescopic rod.

5. A cotter splitting apparatus according to claim 1, wherein: the locking device comprises a stud, a handle and a fixing rod, one end of the fixing rod is fixedly connected with the fixing frame, the other end of the fixing rod is provided with a threaded hole and is in threaded connection with the stud, the handle is installed at the top of the stud, and a locking pin used for locking the head of the cotter pin is installed at the other end of the stud.

6. A cotter splitting apparatus according to claim 5, wherein: the locking pin is provided with a groove for accommodating the head of the cotter pin, and the head of the cotter pin is embedded into the groove to realize locking and limiting.

7. A cotter splitting apparatus according to any one of claims 1 to 6, wherein: the angle limiting structure is a limiting block arranged on the fixing frame, two limiting inclined planes for limiting the opening angle of two folds at the tail part of the split pin are arranged on the limiting block, and the tail part of the split pin penetrates through the middle of the two limiting inclined planes.

8. A cotter splitting apparatus according to claim 7, wherein: the limiting block is composed of two independent limiting clamping blocks, the two limiting clamping blocks are detachably mounted on the fixing frame respectively, and the two limiting clamping blocks are arranged on two sides of the cotter pin.

9. A cotter splitting apparatus according to claim 8, wherein: the fixing frame is provided with two sliding grooves with one ends penetrating through, each limiting clamping block is provided with a sliding block matched with the corresponding sliding groove, and the sliding blocks are correspondingly inserted into the sliding grooves to realize the disassembly and assembly of the limiting clamping blocks.

10. A cotter splitting apparatus according to claim 8, wherein: and a limiting groove for accommodating a split pin hinge is arranged on the limiting inclined surface of the limiting clamping block.

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