CN218374099U - Quick change mechanism for engineering machinery accessory - Google Patents

Abstract

The utility model discloses an engineering machine tool accessory quick change mechanism, including mounting, slider, round pin axle, limiting plate, screw rod, first nut, the one end threaded connection that the screw rod is close to the mounting has the second nut, the compression groove has all been seted up to the relative one side peripheral wall body of second nut and first nut, the spacing groove has been seted up to the both ends symmetry of compression inslot chamber, the inner chamber of compression groove is inserted and is equipped with the conflict ring, the bilateral symmetry fixedly connected with stopper of conflict ring, the lateral wall of conflict ring is provided with first compression spring. This engineering machine tool accessory quick change mechanism has increased a second nut through the opposite side at the slider to the setting of cooperation abutting ring, compression groove, first compression spring can increase the steadiness of first nut and second nut, and then has increased the steadiness of slider, has avoided not hard up, has increased the security.

Description

Quick change mechanism for engineering machinery accessory

Technical Field

The utility model relates to an engineering machine tool accessory quick change mechanism field, in particular to engineering machine tool accessory quick change mechanism.

Background

The quick-change device for accessories of the engineering machinery enables the engineering machinery with single function to have multiple functions, improves the efficiency, saves money and labor and has wide application. The quick-change mechanism of the accessory can enable a user to fully exert the efficiency of the machine on the premise of not increasing the investment, complete various operations and improve the cost performance of the machine. In particular to a quick-change mechanism for the attachments of the excavator.

In chinese utility model patent application no: the CN202220016136.1 discloses an excavator accessory quick-change device, an excavator working device and an excavator, wherein the device comprises a fixing piece, a sliding piece, a screw rod and a fixing nut, the fixing piece is used for connecting a bucket rod and the accessory, and the fixing piece is provided with a shaft hole used for installing a connecting shaft; the axis of the screw is perpendicular to the axis of the shaft hole of the fixing piece, and one end of the screw is rotatably connected with the fixing piece; the two ends of the sliding part are respectively provided with a pin shaft used for being connected with the push rod and the fixing hole of the accessory, the axis of the pin shaft is perpendicular to the axis of the screw rod, the sliding part is in threaded connection with the screw rod, and under the rotating action of the screw rod, the sliding part moves along the axial direction of the screw rod. The device has only set up the nut in one side of slider, and the nut atress can cause not hard up phenomenon for a long time, and the steadiness is relatively poor, and simultaneously, the front end of the device screw rod is provided with hexagonal rotating-structure, and this structure is used for rotating the screw rod, and structure as an organic whole with the screw rod rotates the wearing and tearing that can cause this structure through the instrument for a long time, changes need to change in the lump with the screw rod, and resource-wasting, the practicality is relatively poor. Therefore, it is necessary to provide a quick-change mechanism for engineering machinery accessories to solve the above problems.

Disclosure of Invention

A primary object of the utility model is to provide an engineering machine tool accessory quick change mechanism can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick change mechanism for engineering machinery accessories comprises a fixing piece, a sliding piece, a pin shaft, a limiting plate, a screw rod and a first nut, wherein one end, close to the fixing piece, of the screw rod is connected with a second nut in a threaded mode, the peripheral wall body on one side, opposite to the second nut and the first nut, of the screw rod is provided with a compression groove, the two ends of the inner cavity of the compression groove are symmetrically provided with limiting grooves, a contact ring is inserted into the inner cavity of the compression groove, the two sides of the contact ring are symmetrically and fixedly connected with the limiting block, and the side wall of the contact ring is provided with a first compression spring;

the side wall of the end part of the screw rod is fixedly connected with a fixed rod, the end part of the fixed rod is provided with a hexagonal slot, a hexagonal rotating rod is inserted into an inner cavity of the hexagonal slot, clamping grooves are symmetrically formed in two sides of one end of the hexagonal rotating rod, arc-shaped pulling blocks are symmetrically attached to two ends of the outer side of the fixed rod, clamping blocks are symmetrically and fixedly connected to the middle of one opposite side of each of the two arc-shaped pulling blocks, two ends, facing one side of the fixed rod, of each arc-shaped pulling block are symmetrically and fixedly connected with a pulling column, and one end, away from the arc-shaped pulling block, of each pulling column is fixedly connected with a pulling spring;

the even fixedly connected with second compression spring of the peripheral wall body of one end of hexagonal dwang, the one end fixedly connected with hexagonal of hexagonal dwang is kept away from to second compression spring and is resisted the touch piece.

Further, the inner wall laminating and sliding connection of conflict ring and compression groove to the outside of conflict ring is contradicted with the lateral wall of slider and is cooperated, stopper sliding connection is in the inner chamber of spacing groove.

Further, every the quantity of the first compression spring of conflict ring lateral wall is four at least to first compression spring evenly sets up, and the one end that first compression spring kept away from the conflict ring is connected with the inner wall fixed connection of compression groove.

Further, the diameter of the fixed rod is smaller than that of the screw rod, and the hexagonal rotating rod is attached to the inner wall of the hexagonal slot and is connected with the inner wall of the hexagonal slot in a sliding mode.

Further, the fixture block is kept away from the arc and is drawn the one end of piece and extend to the inner chamber of hexagonal slot and cooperate with the draw-in groove joint, draw post and extension spring all set up in the inside of dead lever to draw post and dead lever sliding connection, the inside fixed connection of extension spring and dead lever.

Further, the cross sectional dimension of hexagonal contact block is the same with the cross sectional dimension of hexagonal rotor bar to the cooperation of contradicting of hexagonal contact block and the inner wall of hexagonal slot, second compression spring's quantity is six at least.

Compared with the prior art, the utility model provides an engineering machine tool accessory quick change mechanism possesses following beneficial effect:

1. this engineering machine tool accessory quick change mechanism has increased a second nut through the opposite side at the slider to the cooperation is supported and is touched ring, compression groove, first compression spring's setting and can be increased the steadiness of first nut and second nut, and then has increased the steadiness of slider, has avoided not hard up, has increased the security, and the setting of spacing groove and stopper is convenient for carry on spacingly to supporting and touches the ring, prevents to drive when the second nut rotates and supports and touch the ring rotation, has avoided first compression spring to warp.

2. This engineering machine tool accessory quick change mechanism draws piece, extension spring, drawing post to mutually support through dead lever, draw-in groove, hexagonal slot, fixture block, arc that sets up and can make things convenient for the dismantlement of hexagonal dwang to change, and convenient operation has increased the practicality, need not to dismantle the change with the screw rod together, saves the resource, and hexagonal touch multitouch and second compression spring's setting is convenient for increase the steadiness of hexagonal dwang, has reduced the not hard up of hexagonal dwang.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of a second nut of the present invention;

fig. 3 is a schematic structural view of the contact ring and the compression groove in a split state;

fig. 4 is a schematic structural view of the hexagonal rotating rod and the fixing rod of the present invention in a disassembled state;

fig. 5 is a schematic view of the front cross-sectional structure of the fixing rod of the present invention.

In the figure: 1. a fixing member; 2. a slider; 3. a pin shaft; 4. a limiting plate; 5. a screw; 6. a first nut; 7. a second nut; 8. fixing the rod; 9. a hexagonal rotating rod; 10. a contact ring; 11. a limiting block; 12. a compression groove; 13. a limiting groove; 14. an extension spring; 15. a first compression spring; 16. a card slot; 17. a hexagonal socket; 18. an arc-shaped pulling block; 19. a clamping block; 20. a hexagonal contact block; 21. a second compression spring; 22. and stretching the column.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 5, an engineering machinery accessory quick-change mechanism includes a fixing member 1, a sliding member 2, a pin shaft 3, a limiting plate 4, a screw rod 5, and a first nut 6, wherein a second nut 7 is in threaded connection with one end of the screw rod 5 close to the fixing member 1, compression grooves 12 are formed in peripheral wall bodies on one side opposite to the second nut 7 and the first nut 6, limiting grooves 13 are symmetrically formed in two ends of an inner cavity of the compression groove 12, abutting rings 10 are inserted into the inner cavity of the compression grooves 12, the abutting rings 10 are attached to and slidably connected with inner walls of the compression grooves 12, the outer sides of the abutting rings 10 are in abutting fit with side walls of the sliding member 2, limiting blocks 11 are symmetrically and fixedly connected to two sides of the abutting rings 10, the limiting blocks 11 are slidably connected to the inner cavity of the limiting grooves 13, the abutting rings 10 are conveniently limited by the arrangement of the limiting grooves 13 and the limiting blocks 11, the sliding member 10 is prevented from rotating when the second nut 7 rotates, deformation of the first compression springs 15 is avoided, the first compression springs 15 are arranged on the side walls of the abutting rings 10, at least four first compression springs 15 of the side walls of each abutting ring 10, the first compression springs 15 are prevented from being uniformly connected with the second nut 7, the compression grooves 12, the other sides of the second nuts, the pressing rings 15, the pressing rings are prevented from being loose, the nuts 12, the safety of the nuts, the nuts 2, the pressing rings 7 and the nuts, the nuts 12 are prevented from being further increased, the safety pressing grooves 12, the safety pressing rings 15, the safety of the pressing rings 12, and the pressing rings 12, the pressing rings 15, and the safety pressing rings are increased, the safety of the nuts, the pressing rings 12 is prevented from being increased;

the end part side wall of the screw rod 5 is fixedly connected with a fixed rod 8, the diameter of the fixed rod 8 is smaller than that of the screw rod 5, the end part of the fixed rod 8 is provided with a hexagonal slot 17, a hexagonal rotating rod 9 is inserted into an inner cavity of the hexagonal slot 17, the hexagonal rotating rod 9 is attached to and slidably connected with the inner wall of the hexagonal slot 17, clamping grooves 16 are symmetrically formed in two sides of one end of the hexagonal rotating rod 9, arc-shaped pulling blocks 18 are symmetrically attached to two ends of the outer side of the fixed rod 8, clamping blocks 19 are symmetrically and fixedly connected to the middle parts of opposite sides of the two arc-shaped pulling blocks 18, one ends, far away from the arc-shaped pulling blocks 18, of the clamping blocks 19 extend to the inner cavity of the hexagonal slot 17 and are in clamping fit with the clamping grooves 16, the two ends, facing one side of the fixed rod 8, of the arc-shaped pulling blocks 18 are symmetrically and fixedly connected with stretching columns 22, one ends, the stretching columns 22 and the stretching springs 14 are arranged inside the fixed rod 8, the stretching columns 22 are slidably connected with the fixed rod 8, the fixed rod 14 and the fixed rod 8, the hexagonal rod can be conveniently replaced, the screw rod 5 can be replaced, and the screw rod 5 is not required to be disassembled, and the screw rod 5 is saved;

the even fixedly connected with second compression spring 21 of the peripheral wall body of one end of hexagonal dwang 9, the quantity of second compression spring 21 is six at least, the one end fixedly connected with hexagonal of hexagonal dwang 9 is kept away from to second compression spring 21 and is supported touch multitouch 20, the cross sectional dimension that the hexagonal supported touch multitouch 20 is the same with the cross sectional dimension of hexagonal dwang 9, and the cooperation of contradicting is supported with hexagonal slot 17's inner wall to hexagonal touch multitouch 20, the setting up of hexagonal supported touch multitouch 20 and second compression spring 21 is convenient for increase the steadiness of hexagonal dwang 9, the not hard up of hexagonal dwang 9 has been reduced.

It should be noted that the utility model is a quick change mechanism for engineering machinery accessories, when in use, a second nut 7 is added on the other side of the sliding part 2, and the arrangement of the abutting ring 10, the compression groove 12 and the first compression spring 15 can increase the stability of the first nut 6 and the second nut 7, specifically, when the first nut 6 and the second nut 7 are rotated to approach the sliding member 2, the abutting ring 10 will abut against the side wall of the sliding member 2, when the first nut 6 and the second nut 7 are continuously rotated, the abutting ring 10 will compress the first compression spring 15 in the inner cavity of the compression groove 12, and then the first compression spring 15 generates reverse acting force, thereby increasing the stability of the sliding part 2, avoiding looseness and increasing safety, the arrangement of the limiting groove 13 and the limiting block 11 is convenient for limiting the contact ring 10, preventing the second nut 7 from driving the contact ring 10 to rotate when rotating, avoiding the deformation of the first compression spring 15, the fixing rod 8, the clamping groove 16, the hexagonal slot 17, the clamping block 19, the arc-shaped pulling block 18, the extension spring 14 and the extension column 22 are mutually matched, so that the hexagonal rotating rod 9 can be conveniently disassembled and replaced, specifically, when the hexagonal rotating rod is disassembled, the two arc-shaped pulling blocks 18 are pulled back, the arc-shaped pulling block 18 drives the extension column 22 to extend the extension spring 14, meanwhile, the arc-shaped pulling block 18 drives the end part of the clamping block 19 to be separated from the inner cavity of the clamping groove 16, then take out the tip of hexagonal dwang 9 from the inner chamber of hexagonal slot 17 can, convenient operation has increased the practicality, need not to dismantle the change with screw rod 5 together, saves the resource, and setting up of hexagonal touch multitouch 20 and second compression spring 21 is convenient for increase the steadiness of hexagonal dwang 9, has utilized the reverse action power of second compression spring 21, has reduced not hard up of hexagonal dwang 9.

It should be noted that the fixing element 1, the sliding element 2, the pin shaft 3, the limiting plate 4, and the screw 5 in the device are all in the prior art, and are not described in detail.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an engineering machine tool accessory quick change mechanism, includes mounting (1), slider (2), round pin axle (3), limiting plate (4), screw rod (5), first nut (6), its characterized in that: a second nut (7) is in threaded connection with one end, close to the fixing piece (1), of the screw (5), compression grooves (12) are formed in peripheral wall bodies on one side, opposite to the first nut (6), of the second nut (7), limiting grooves (13) are symmetrically formed in two ends of an inner cavity of each compression groove (12), a contact ring (10) is inserted into the inner cavity of each compression groove (12), limiting blocks (11) are symmetrically and fixedly connected to two sides of each contact ring (10), and a first compression spring (15) is arranged on the side wall of each contact ring (10);

the fixing rod (8) is fixedly connected to the side wall of the end portion of the screw rod (5), a hexagonal slot (17) is formed in the end portion of the fixing rod (8), a hexagonal rotating rod (9) is inserted into an inner cavity of the hexagonal slot (17), clamping grooves (16) are symmetrically formed in two sides of one end of the hexagonal rotating rod (9), arc-shaped pulling blocks (18) are symmetrically attached to two ends of the outer side of the fixing rod (8), clamping blocks (19) are symmetrically and fixedly connected to the middle of one opposite side of each of the two arc-shaped pulling blocks (18), pulling columns (22) are symmetrically and fixedly connected to two ends of one side, facing the fixing rod (8), of each arc-shaped pulling block (18), and a stretching spring (14) is fixedly connected to one end, far away from the arc-shaped pulling block (18), of each pulling column (22);

the even fixedly connected with second compression spring (21) of the peripheral wall body of one end of hexagonal dwang (9), the one end fixedly connected with hexagonal contact block (20) of hexagonal dwang (9) are kept away from in second compression spring (21).

2. The quick-change mechanism for engineering machinery accessories according to claim 1, characterized in that: the inner wall of the contact ring (10) and the compression groove (12) is attached and slidably connected, the outer side of the contact ring (10) is in interference fit with the side wall of the sliding part (2), and the limiting block (11) is slidably connected to the inner cavity of the limiting groove (13).

3. The quick-change mechanism for engineering machinery accessories according to claim 1, characterized in that: the number of the first compression springs (15) on the side wall of each abutting ring (10) is at least four, the first compression springs (15) are uniformly arranged, and one ends, far away from the abutting rings (10), of the first compression springs (15) are fixedly connected with the inner wall of the compression groove (12).

4. The quick-change mechanism for engineering machinery accessories according to claim 1, characterized in that: the diameter of dead lever (8) is less than the diameter of screw rod (5), the inner wall laminating and sliding connection of hexagonal dwang (9) and hexagonal slot (17).

5. The quick-change mechanism for engineering machinery accessories according to claim 1, characterized in that: one end, far away from the arc-shaped pulling block (18), of the clamping block (19) extends to an inner cavity of the hexagonal slot (17) and is in clamping fit with the clamping groove (16), the stretching column (22) and the stretching spring (14) are arranged inside the fixing rod (8), the stretching column (22) is in sliding connection with the fixing rod (8), and the stretching spring (14) is fixedly connected with the inside of the fixing rod (8).

6. The quick-change mechanism for engineering machinery accessories of claim 1, characterized in that: the cross sectional dimension of the hexagonal contact block (20) is the same as that of the hexagonal rotating rod (9), the hexagonal contact block (20) is in interference fit with the inner wall of the hexagonal slot (17), and the number of the second compression springs (21) is at least six.

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