CN210210220U

CN210210220U - Pin pressing device

Info

Publication number: CN210210220U
Application number: CN201921001716.8U
Authority: CN
Inventors: Liang Lyu; 吕梁; Chuanwei Wang; 王传伟; Shuchun Wang; 王树春
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-31
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a pin pressing device, which relates to the technical field of assembling tools and comprises a fixing part, a guide part, a pin ejecting part and an elastic part; the elastic component is arranged between the ejector pin piece and the fixing piece, the ejector pin piece can be close to or far away from the fixing piece to move, when the ejector pin piece is close to the fixing piece to move, the elastic component stores energy, and the elastic component can drive the ejector pin piece to move away from the fixing piece through elasticity after the energy is stored, so that the ejector pin piece pushes the pin shaft to be inserted into a pin hole of the to-be-installed piece or pushes the pin shaft out of the pin hole of the to-be-installed piece. Compared with the prior art, the utility model has simple structure, does not need complex oil circuit, has small equipment volume and convenient movement; the hammer is not required to be swung, the hammer is prevented from colliding with surrounding objects or a knocker, and potential safety hazards brought to the knocker or the surrounding objects are eliminated.

Description

Pin pressing device

Technical Field

The utility model belongs to the technical field of the assembly tool technique and specifically relates to a pressure round pin device is related to.

Background

The excavator is equipment frequently used in construction processes such as roads, and bucket teeth on a bucket of the excavator can be replaced according to different requirements or after being worn. The bucket of the existing structure is welded with a tooth holder, the bucket tooth is connected with the tooth holder through a pin shaft, and when the bucket tooth is connected with the tooth holder, a pin shaft is usually required to be installed into a pin shaft hole of the bucket tooth and the tooth holder by adopting an assembling and disassembling mechanism.

The existing assembly mechanism generally adopts a special hydraulic pin pressing tool, so that the equipment is large and inconvenient to move; or the hammer is manually used for striking the ejector pin rod so as to strike the pin shaft into or out of the pin shaft hole, which wastes manpower, and because the hammer often needs to hold the ejector pin rod, huge potential safety hazards are easily brought to a knocker or surrounding objects.

The above problems are not only encountered during the installation of the excavator tooth, but also encountered in other similar mechanisms requiring the assembly of the pin shaft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure round pin mechanism to solve current hydraulic pressure and press round pin instrument bulky, remove inconvenient technical problem.

The utility model provides a pin pressing device, which comprises a fixing piece, a guide piece, a pin ejecting piece and an elastic component;

the elastic component is arranged between the ejector pin piece and the fixing piece, and the ejector pin piece can move close to or away from the fixing piece; the guide piece is used for guiding the ejector pin piece so as to enable the ejector pin piece to move along a straight line;

when the ejector pin piece is close to the fixing piece to move, the elastic part stores energy, and after the elastic part stores energy, the elastic part can drive the ejector pin piece to be far away from the fixing piece to move through elasticity, so that the ejector pin piece pushes the pin shaft to be inserted into a pin hole of a piece to be installed or pushes the pin shaft out of the pin hole of the piece to be installed.

Further, the elastic component is a spring.

Further, the pin pressing device further comprises a handle, the handle is connected with the ejector pin piece, and the handle is used for pushing the ejector pin piece to move close to the fixing piece.

Further, the pin pressing device further comprises a supporting piece, and the supporting piece is arranged between the fixing piece and the pin ejecting piece;

the handle includes action bars and connecting rod, the action bars is close to the one end of knock pin spare with support piece is articulated, the connecting rod is connected the action bars with between the knock pin spare, just the one end of connecting rod with the action bars is articulated, the other end of connecting rod with knock pin spare is articulated.

Further, the pressure round pin device still includes fixed frame, one of them lateral wall of fixed frame is regarded as the mounting, support piece is for connecting bracing piece on the fixed frame, the knock pin spare and elastomeric element sets up in the frame of fixed frame.

Further, the ejector pin piece comprises a sliding block and an ejector pin rod, the sliding block is arranged on the fixed frame in a sliding mode, and the elastic part is arranged between the sliding block and the fixed piece; the ejector pin rod is connected to one side, far away from the fixing piece, of the sliding block, and the ejector pin rod is used for being abutted to the pin shaft to push the pin shaft.

Further, the guide is for setting up guide bar on the fixed frame, the slider with coaxial guiding hole that is provided with on the knock pin pole, the slider with the knock pin pole passes through guiding hole slidable cover is established on the guide bar.

Furthermore, the pin pressing device further comprises a limiting piece, and the limiting piece is used for limiting the pin ejecting piece to move when the pin ejecting piece moves to the preset position.

Furthermore, the ejector pin piece is connected with a clamping rod, the length direction of the clamping rod is consistent with the moving direction of the ejector pin piece, and a plurality of clamping positions are arranged on the clamping rod at intervals along the length direction;

the pin pressing device further comprises a limiting rod, the limiting rod is hinged to the supporting piece, one end of the limiting rod can be abutted to one of the clamping positions, so that the pin ejecting piece is limited to move.

Further, the middle part of gag lever post with support piece is articulated, the one end of keeping away from it and screens pole butt of gag lever post is the operation end, the operation end is used for driving the gag lever post and winds the gag lever post with support piece's articulated position rotates to make the one end that the gag lever post is close to the screens butt of screens pole and screens pole or make the one end that the gag lever post is close to the screens pole break away from the screens of screens pole.

Furthermore, the screens are bumps or grooves.

Further, the clamping rod is arranged between the fixing piece and the ejector pin piece, the clamping rod is located below the elastic component, and the clamping position of the clamping rod is arranged on the lower side surface of the clamping rod;

the fixed frame corresponds to the below of screens pole is provided with spacing spring, spacing spring's upper end with the gag lever post is close to the one end of screens pole is connected, just spacing spring has the messenger the gag lever post is close to the one end of screens pole to the trend that the screens pole removed.

Furthermore, a limiting block is further arranged on the support piece and arranged above the hinging position of the limiting rod and the support piece.

Furthermore, an accommodating space for the part to be mounted is formed in one end, far away from the fixing piece, of the fixing frame, and a positioning piece for positioning the part to be mounted is arranged in the accommodating space of the fixing frame.

Furthermore, a positioning hole is formed in the side face, opposite to the fixing piece, of the fixing frame, and the positioning hole and the guide rod are coaxially arranged;

the positioning hole is used for positioning the position of the pin shaft of the to-be-installed part.

Further, the pressure pin device also comprises an extension bar, and the extension bar and the handle can be detachably connected.

The utility model provides a pressure round pin device includes mounting, knock pin spare, guide and elastomeric element. The pin pressing device of the utility model utilizes the energy storage function of the elastic component, and can move the pin ejecting component towards the fixing component under the guidance of the guiding component by manpower and the like, so as to enable the elastic component to store energy; after the energy storage meets the requirement, the ejector pin piece is released, and the ejector pin piece impacts the pin shaft under the guiding of the guiding piece and under the elastic action of the elastic part. Specifically, for example, when the to-be-installed parts are the bucket teeth and the tooth holders, the ejector pin piece is aligned to one end of the pin shaft firstly when the pin shaft is disassembled or installed, and when the pin shaft needs to be disassembled, the ejector pin piece is guided downwards by the guide piece and impacts the pin shaft under the elastic action of the elastic piece, and the pin shaft is ejected out of a pin shaft hole of the bucket teeth and the tooth holders, so that the pin shaft is taken down, and the bucket teeth and the tooth holders are quickly separated; when the pin shaft needs to be installed, the pin ejecting part is guided downwards by the guide part and impacts the pin shaft under the elastic action of the elastic part, so that the pin shaft enters the pin shaft holes of the bucket teeth and the tooth holder, and the bucket teeth and the tooth holder are installed. Compared with the existing hydraulic pin pressing tool, the pin pressing device of the utility model has simple structure, does not need complex oil paths, has small equipment volume and is convenient to move; compared with the mode that the existing manual hammer is used for striking the knock pin rod, the knock pin piece moves towards the fixing piece, the hammer does not need to be swung due to the pushing mode and the like, and due to the guiding effect of the guide rod, the knock pin piece can be accurately aligned with the pin shaft, the hammer is prevented from being swung to collide with surrounding objects or a striker, and potential safety hazards brought to the striker or the surrounding objects are eliminated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an isometric view of a press pin device provided by an embodiment of the present invention;

fig. 2 is a schematic front view illustrating a pin pressing device according to an embodiment of the present invention being engaged with a member to be installed;

fig. 3 is a schematic view of a fixing frame of the pin pressing device according to an embodiment of the present invention.

Icon: 1-fixing frames; 101-a fixture; 2-a positioning element; 3-a guide rod; 4-a knock pin; 5-a slide block; 6-connecting rod; 7-a support; 8-a spring; 9-operating rod; 10-extension bar; 11-a position clamping rod; 12-a limiting block; 13-a limiting rod; 14-a limit spring; 15-a knock pin member; 16-positioning holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present embodiment provides a press pin device including a fixing member 101, a knock member 15, a guide member, and an elastic member.

Wherein the elastic member is disposed between the knock pin 15 and the fixing member 101, the knock pin 15 can move closer to or away from the fixing member 101, and the guide member is used to guide the knock pin 15 so that the knock pin 15 moves in a straight line. When the ejector pin piece 15 moves close to the fixing piece 101, the elastic part stores energy, and after the energy is stored in the elastic part, the elastic part can drive the ejector pin piece 15 to move away from the fixing piece 101 through elasticity, so that the ejector pin piece 15 pushes the pin shaft to be inserted into the pin hole of the piece to be installed or the ejector pin piece 15 pushes the pin shaft out of the pin hole of the piece to be installed.

The elastic component in the embodiment should have energy storage performance, and after the external force is removed, the elastic component can rapidly release the energy stored by the elastic component; that is, the elastic member can apply a large impact force to the knock pin 15 after the energy storage is completed. The elastic component can be a snap spring, a disc spring, a column-shaped spring 8 and the like. The present embodiment will be described by taking the spring 8 as an example.

The pin pressing device provided by the embodiment of the utility model can move the pin ejecting piece 15 towards the fixing piece 101 by manpower and the like by utilizing the energy storage function of the elastic component, so that the elastic component can store energy; after the energy storage meets the requirement, the ejector pin piece 15 is loosened, and the ejector pin piece 15 impacts the pin shaft under the guiding of the guiding piece under the elastic action of the elastic component. Specifically, in the present embodiment, the connection between the tooth and the tooth holder is described as an example. When the pin shaft is disassembled or assembled, the ejector pin piece 15 is aligned to one end of the pin shaft, and when the pin shaft needs to be disassembled, the ejector pin piece 15 can impact the pin shaft under the elastic action of the elastic piece to eject the pin shaft out of the pin shaft hole of the bucket tooth and the tooth holder, so that the pin shaft is taken down, and the bucket tooth and the tooth holder are quickly separated; when the pin shaft needs to be installed, the ejector pin piece 15 can impact the pin shaft under the elastic action of the elastic piece, so that the pin shaft enters the pin shaft holes of the bucket teeth and the tooth holder, and the bucket teeth and the tooth holder are installed.

Compared with the existing hydraulic pin pressing tool, the pin pressing device provided by the embodiment of the utility model has the advantages of simple structure, no need of complex oil path, small equipment volume and convenient movement; compared with the mode that the hammer is manually used for striking the knock pin 4 in the prior art, the hammer does not need to be swung due to the pushing mode and the like when the knock pin 15 moves towards the fixing piece 101, so that the hammer is prevented from colliding with surrounding objects or a striker, and potential safety hazards brought to the striker or the surrounding objects are eliminated.

As a preferred embodiment of the present invention, in this embodiment, the pin pressing device further includes a handle, the handle is connected to the knock pin 15, and the handle is used to push the knock pin 15 to move close to the fixing member 101.

With continued reference to fig. 1-2, as a preferred form of handle construction, the handle includes a lever 9 and a link 6. The pin pressing device further comprises a supporting piece 7, the supporting piece 7 is arranged between the fixing piece 101 and the ejector pin piece 15, one end, close to the ejector pin piece 15, of the operating rod 9 is hinged to the supporting piece 7, the connecting rod 6 is connected between the operating rod 9 and the ejector pin piece 15, one end of the connecting rod 6 is hinged to the operating rod 9, and the other end of the connecting rod 6 is hinged to the ejector pin piece 15. Specifically, two ends of the connecting rod 6 are respectively connected with the sliding block 5 and the operating rod 9 through revolute pairs.

It will be appreciated that in the preferred form of this embodiment the handle is configured so that rotation of the link 6 causes movement of the pin member 15. That is, when the operating lever 9 rotates around its hinge point with the supporting member 7, the corresponding link lever 6 rotates under the action of the operating lever 9 and moves the knock pin member 15 closer to or away from the fixed member 101. This kind of operating mode is simple, and compares the mode that directly promotes knock pin piece 15, and is comparatively laborsaving.

Corresponding to the form of the handle of the present embodiment, the pin pressing device of the present embodiment further includes an extension bar 10, the extension bar 10 may be a hollow tube, and accordingly, it may be sleeved on the operation rod 9, and the energy storage of the spring 8 may be realized by applying a force on the extension bar 10.

It should be noted that the extension bar and the operation bar are not limited to the form of socket joint, and other detachable connection modes may also be used, such as bolt connection and the like.

With continuing reference to fig. 1-3, as a specific structural form of the pin pressing device of the present invention, the pin pressing device includes a fixed frame 1, and the fixed frame 1 serves as a supporting base for other components. In this embodiment, the fixed frame 1 is a substantially rectangular square frame, wherein the left side wall of the fixed frame 1 is used as the fixing member 101, the support member 7 is a support rod connected to the fixed frame 1, and the knock pin 15 and the elastic member are provided in the frame of the fixed frame 1.

Specifically, the knock pin 15 includes a slider 5 and a knock pin rod 4, the slider 5 is slidably disposed on two opposite side walls of the fixed frame 1, and the spring 8 is disposed between the slider 5 and the fixed member 101; the ejector pin rod 4 is connected to one side, far away from the fixing part 101, of the sliding block 5, and the ejector pin rod 4 is used for being abutted to the pin shaft to push the pin shaft.

It can be understood that the slider 5 is matched with the ejector pin rod 4, on one hand, the slider 5 can be reasonably set to be large or small according to needs so as to increase the contact area between the spring 8 and the slider 5 and be beneficial to selecting the spring 8 with a proper size; on the other hand, the size of the ejector pin rod 4 can be reasonably selected according to the size of the pin shaft, correspondingly, the ejector pin rod 4 with a smaller diameter can be selected, the contact area of the ejector pin rod 4 and the pin shaft is correspondingly reduced, and the pressure of the ejector pin rod 4 on the pin shaft is improved. That is, the knock pin member 15 is in the form of the slider 5 and the knock pin lever 4, so that each part can be selected and matched in an optimal form, and the stability and the output efficiency of the device are improved.

As shown in fig. 1 or 2, the fixing frame 1 is provided with a guide rod 3 along the moving direction of the sliding block 5, the guide rod 3 is a guide member, that is, the guide rod 3 extends rightward as the left side wall of the fixing member 101, the sliding block 5 and the knock pin rod 4 are coaxially provided with guide holes, and the sliding block 5 and the knock pin rod 4 are slidably fitted over the guide rod 3 through the guide holes.

It is understood that the knock pin 4 is equivalent to a hollow tube in the present embodiment, and the combination of the slider 5 and the knock pin is equivalent to a cylindrical pair connected to the guide rod 3, but can move only in the direction of the guide rod 3 under the constraint of the upper and lower sidewalls of the fixing frame 1.

As an alternative, the side of the fixed frame 1 as the fixing member 101 is provided with a threaded hole in which the guide bar 3 is screwed.

The structural form of the fixed frame 1 is not limited to the square frame shown in the embodiment, the external shape thereof can be appropriately selected as needed, and the form of connection between the slider 5 and the fixed frame 1 is not limited to the form shown in the embodiment, and for example, a form in which a guide rail is provided in the fixed frame 1, and the slider 5 is slidably connected to both ends of the slider 5 via the guide rail instead of the form in which the slider 5 is directly slidably connected to both opposite sides of the fixed frame 1, or the like may be used.

As an optional embodiment of the present invention, in this embodiment, the pin pressing device further includes a limiting member, and the limiting member is used for limiting the movement of the knock pin 15 when the knock pin 15 moves to the preset position.

Specifically, referring to fig. 1 or 2, the pin pressing device in the present embodiment includes a position limiting member 11 and a position limiting rod 13. Specifically, the knock pin 15 is connected to the lock lever 11, the longitudinal direction of the lock lever 11 coincides with the moving direction of the knock pin 15, and a plurality of locks are provided at intervals in the longitudinal direction on the lock lever 11. The middle part of the limiting rod is hinged (specifically, connected through a rotating shaft) on the support 7, and one end of the limiting rod 13 can abut against one of the plurality of detents to limit the movement of the knock pin 15. Wherein, the one end of keeping away from its and screens pole 11 butt of gag lever post is the operation end, and the operation end is used for driving gag lever post 13 and rotates around gag lever post 13 and support piece 7's articulated position to make the one end that the gag lever post is close to screens pole 11 and the screens butt of screens pole 11 or make the one end that the gag lever post is close to screens pole 11 break away from the screens of screens pole 11.

It will be appreciated that the detent lever 11 can move with the slide 5. The screens can be the recess that inwards caves in on screens pole 11, also can be outside bellied lug on screens pole 11, no matter be the recess or the lug all can with the gag lever post butt.

As a concrete form, referring to fig. 1-2, the detent lever 11 is disposed between the fixed member 101 and the knock pin member 15, and the detent lever 11 is located below the spring 8, and the detent of the detent lever 11 is disposed on the lower side surface of the detent lever 11; the fixed frame 1 is provided with a limiting spring 14 corresponding to the lower part of the clamping rod 11, the upper end of the limiting spring 14 is connected (can be abutted) with one end of the limiting rod close to the clamping rod 11, and the limiting spring 14 has a tendency that one end of the limiting rod close to the clamping rod 11 moves towards the clamping rod 11.

The support member 7 is further provided with a limiting block 12, and the limiting block 12 is arranged above the hinged position of the limiting rod and the support member 7. The limiting block 12 is used for limiting the moving range of the limiting rod 13 and preventing the limiting rod 13 from moving along with the clamping rod 11.

It can be understood, be provided with a plurality of screens along the length direction interval on the screens pole 11, it is corresponding, during the screens butt of gag lever post 13 and different positions, the slider 5 of being connected with screens pole 11 can be in different positions, that is, the handle drives slider 5 and knock pin 4 when removing different positions on the moving direction, all can fix with gag lever post 13 through screens pole 11, realized according to spring 8's compression needs, to slider 5 and knock pin 4 fixed. For example, corresponding to the form shown in fig. 1-2, when the stored energy of the spring 8 is required to be large, the slider 5 and the knock pin 4 can be pulled by the handle to move to a position closer to the fixing member 101, and at this time, the limiting rod 13 is clamped with the position lock on the position lock rod 11 farther from the fixing member 101, so that the spring 8 can be maintained in a large stored energy state; when the energy storage of the spring 8 is small, the handle can be used for pulling the sliding block 5 and the ejector pin rod 4 to move to a far position of the fixing part 101, and at the moment, the limiting rod is clamped with the clamping position, close to the fixing part 101, on the clamping rod 11, so that the spring 8 can be maintained in a small energy storage state.

In order to facilitate the placement of the members to be installed, the fixing frame 1 is a directional frame in the present embodiment, that is, as shown in fig. 1 to 3, the front-rear direction (the direction perpendicular to the paper surface in fig. 2) of the fixing frame 1 is a through-hole type communicating. One end of the fixing frame 1, which is far away from the fixing member 101, is provided with an accommodating space for the component to be mounted, and the fixing frame 1 is provided with a positioning member 2 for positioning the component to be mounted corresponding to the accommodating space.

Wherein, the positioning member 2 may be a positioning rubber. Regarding the form of the tooth and the tooth holder, as shown in fig. 2, the side surface of the positioning rubber contacting the tooth holder or the tooth to be mounted is of a slope type.

The positioning piece 2 is used for positioning the fixed frame and the piece to be installed (namely, the bucket tooth and the tooth holder), and ensures that the bucket tooth, the tooth pin and the guide rod 3 are in the coaxial position.

In order to better enable the top pin rod 4 to be flush with the pin shaft, a positioning hole 16 is formed in the side face, opposite to the fixing piece, of the fixing frame 1, the positioning hole 16 is coaxially arranged with the guide rod 3, and the positioning hole 16 is used for positioning the position of the pin shaft of the piece to be installed and is also an access hole of the pin shaft.

When the pin pressing device is used, the extension rod can be sleeved on the operating rod 9 of the handle. Then, as shown in fig. 2, the tooth holder and the bucket tooth penetrate through the front and rear sides of the fixed frame 1, are placed in the accommodating space, and are fixed and adjusted through the positioning rubber, so that the pin shaft hole connected with the bucket tooth and the tooth holder is aligned with the knock pin 4. To the form that the round pin axle was dismantled to needs, at this moment, the round pin axle also aligns with knock pin pole 4, pushes down extension bar 10 and drives the handle rotation, and slider 5 compression spring 8 makes the energy storage of spring 8 this moment, targets in place the back, earlier through gag lever post 13 butt on screens pole 11, fixes slider 5 this moment. The extension bar 10 is detached from the handle, then the operating end of the limiting rod 13 is pressed to enable the limiting rod 13 to rotate, the limiting rod 13 is separated from the clamping position of the clamping position rod 11, at the moment, under the action of the spring 8, the sliding block 5 drives the ejector pin rod 4 to impact the pin shaft rapidly, and the pin shaft is separated from the pin shaft hole.

For the form of the pin shaft needing to be installed, before the handle compresses the spring 8, one end of the pin shaft needs to be inserted into the pin shaft hole first, the subsequent operation is similar to the disassembly of the pin shaft, and repeated description is omitted here.

It should be noted that, when the pin shaft is disassembled, the pin shaft connection is not in a form of difficult pulling out, and the length of the pin shaft is greater than that of the shaft hole, the ejector pin rod 4 can only push one end of the pin shaft close to the ejector pin rod 4 to be flush with the outer edge of the pin shaft hole, correspondingly, at the moment, one end of the pin shaft far away from the ejector pin rod 4 can be exposed for a longer distance, and at the moment, the pin shaft can be pulled out in a form of manual holding. For the matching of the pin shaft and the shaft hole in a general form, the outer diameter of the ejector pin rod 4 should be slightly smaller than the inner diameter of the pin shaft hole, so that the ejector pin rod 4 can enter the pin shaft hole to completely eject the pin shaft out of the pin shaft hole.

It should be noted that, in the present embodiment, when the limiting rod 13 is disengaged from the detent position, the limiting rod 13 should move to a position where it does not contact with the limiting spring 14, so as to avoid the friction force generated by the contact between the limiting rod 13 and the detent rod 11, and thus the energy storage utilization rate of the spring 8 is reduced. Naturally, even if the limiting rod 13 still contacts the position-limiting rod 11, at this time, because the position-limiting rod 11 is in smooth surface contact with the limiting rod, the spring 8 can naturally overcome the friction force between the two to drive the ejector pin member 15 to move in the energy storage state.

The embodiment of the utility model provides a depression bar device lever design and slider-crank design perfect adaptation have been in the same place, only need less external force can make the mechanism obtain great elastic potential energy, and the principle of main work is: firstly, external force is applied to the far end (the position of the extension rod 10) of a lever fulcrum (a hinged point between the operating rod 9 and the support piece 7), the force is transmitted to the sliding block 5 through the handle, the sliding block 5 is driven to move to compress the spring 8 to store energy, then the limiting rod 13 is pulled, and elastic potential energy is released to push the ejector pin rod 4 on the sliding block 5 to move, so that the assembly and disassembly of the pin shaft are realized, and the hinge pin device has the advantages of simple structure, small volume, large output force, strong universality and the like.

The embodiment of the utility model provides a depression bar device's beneficial effect:

1. small volume, easy positioning and convenient carrying.

2. The structure design is simple, the real-time is strong, the reliability is high, and the realization is easy.

3. And an additional power source is not needed, so that the assembly and disassembly of the excavator bucket teeth in the field are facilitated.

4. Through the ejector pin pole and the spring that change different specifications, applicable round pin axle dismouting such as in different tooth round pins, application scope is wide.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A pin pressing device, characterized in that the pin pressing device comprises a fixed part (101), a guide part, a pin ejecting part (15) and an elastic part;

the elastic component is arranged between the ejector pin piece (15) and the fixed piece (101), and the ejector pin piece (15) can move close to or away from the fixed piece (101); the guide piece is used for guiding the ejector pin piece (15) so as to enable the ejector pin piece (15) to move along a straight line;

the ejector pin piece (15) is close to when the fixing piece (101) moves, the elastic part stores energy, the elastic part can drive through elasticity after storing energy the ejector pin piece (15) is kept away from the fixing piece (101) moves, so that the ejector pin piece (15) pushes the pin shaft to be inserted into the pin hole of the piece to be installed or the ejector pin piece (15) pushes the pin shaft out of the pin hole of the piece to be installed.

2. Press pin device according to claim 1, characterised in that the resilient member is a spring (8).

3. A pin press device according to claim 1 or 2, further comprising a handle connected to the pin ejector (15) for pushing the pin ejector (15) to move closer to the stationary part (101).

4. The pin pressing device according to claim 3, further comprising a support (7), the support (7) being disposed between the fixing member (101) and the pin ejecting member (15);

the handle includes action bars (9) and connecting rod (6), action bars (9) are close to the one end of knock pin spare (15) with support piece (7) are articulated, connecting rod (6) are connected action bars (9) with between knock pin spare (15), just the one end of connecting rod (6) with action bars (9) are articulated, the other end of connecting rod (6) with knock pin spare (15) are articulated.

5. The pin pressing device according to claim 4, characterized in that the pin pressing device further comprises a fixed frame (1), one of the side walls of the fixed frame (1) is used as the fixing member (101), the supporting member (7) is a supporting rod connected to the fixed frame (1), and the knock member (15) and the elastic member are arranged in the frame of the fixed frame (1).

6. The presser pin device according to claim 5, characterized in that said ejector pin member (15) comprises a slider (5) and an ejector pin rod (4), said slider (5) being slidingly arranged on said fixed frame (1), said elastic means being arranged between said slider (5) and said fixed member (101); ejector pin pole (4) are connected slider (5) are kept away from one side of mounting (101), ejector pin pole (4) are used for with the round pin axle butt, in order to promote the round pin axle.

7. The pin pressing device according to claim 6, characterized in that the guiding member is a guiding rod (3) arranged on the fixed frame (1), the sliding block (5) and the knock pin rod (4) are coaxially provided with guiding holes, and the sliding block (5) and the knock pin rod (4) are slidably sleeved on the guiding rod (3) through the guiding holes.

8. The pin pressing device according to claim 1, further comprising a stopper for restricting the movement of the knock member (15) when the knock member (15) moves to a preset position.

9. The pin pressing device according to any one of claims 5 to 7, wherein a clamping rod (11) is connected to the ejector pin member (15), the length direction of the clamping rod (11) is consistent with the moving direction of the ejector pin member (15), and a plurality of clamping positions are arranged on the clamping rod (11) at intervals along the length direction;

the pin pressing device further comprises a limiting rod (13), the limiting rod (13) is hinged to the support piece (7), one end of the limiting rod (13) can be abutted to one of the clamping positions to limit the movement of the ejector pin piece (15).

10. The pin pressing device according to claim 9, wherein the middle of the limiting rod (13) is hinged to the support (7), one end of the limiting rod (13) far away from the clamping rod (11) is an operating end, and the operating end is used for driving the limiting rod (13) to rotate around the hinged position of the limiting rod (13) and the support (7), so that one end of the limiting rod (13) close to the clamping rod (11) is abutted to the clamping position of the clamping rod (11) or one end of the limiting rod (13) close to the clamping rod (11) is disengaged from the clamping position of the clamping rod (11).

11. The pin pressing device according to claim 9, wherein the detent is a protrusion or a groove.

12. The pin pressing device according to claim 9, wherein the detent lever (11) is disposed between the fixed member (101) and the knock pin member (15), and the detent lever (11) is located below the elastic member, and the detent of the detent lever (11) is disposed at a lower side of the detent lever (11);

fixed frame (1) correspond to the below of screens pole (11) is provided with spacing spring (14), the upper end of spacing spring (14) with gag lever post (13) are close to the one end of screens pole (11) is connected, just spacing spring (14) have and make gag lever post (13) are close to the one end of screens pole (11) to the trend that screens pole (11) removed.

13. The pin pressing device according to claim 12, characterized in that a limiting block (12) is further arranged on the supporting member (7), and the limiting block (12) is arranged above the hinging position of the limiting rod (13) and the supporting member (7).

14. The pin pressing device according to claim 7, characterized in that an end of the fixing frame (1) far away from the fixing member (101) is provided with an accommodating space for installing the member to be installed, and the fixing frame (1) is provided with a positioning member (2) for positioning the member to be installed corresponding to the accommodating space.

15. The presser pin device according to claim 14, wherein a positioning hole (16) is provided on the side of the fixing frame (1) opposite to the fixing member (101), the positioning hole (16) being provided coaxially with the guide bar (3);

the positioning hole (16) is used for positioning the position of the pin shaft of the piece to be installed.

16. The presser pin device according to claim 3, further comprising an extension bar (10), said extension bar (10) being removably connectable to said handle.