Quick change mechanism

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a quick change mechanism which comprises a box body, a first partition plate is arranged in the box body, two L-shaped plates are arranged on the left side of the first partition plate, a first inclined wedge block is arranged between the L-shaped plates in a sliding mode, the right end of the first inclined wedge block is connected with a first sliding rod, and a second inclined wedge block is arranged at the left end of the first inclined wedge block. A second sliding rod is arranged on the upper side of the second inclined wedge block, a movable pin is arranged on the lower side of the second inclined wedge block, the right end of the first sliding rod is connected with a push plate, the first sliding rod is slidably connected with a first partition plate, a second partition plate is arranged on the right side of the first partition plate, and a threaded rod is rotationally arranged between the first partition plate and the second partition plate and is in threaded connection with the push plate. The threaded rod is connected with a motor through a gear set. The push plate is driven to move left and right through forward and reverse rotation of the motor, so that lifting of the movable pin is achieved, matching of the accessory and the quick-change mechanism is achieved quickly, and assembling time and labor are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a quick-change mechanism. Background Art

[0002] A skid loader is also called a skid-type loader, a multi-purpose engineering vehicle, or a multi-purpose engineering machine. It is a wheeled special chassis device that uses the linear speed difference of the wheels on both sides to achieve vehicle steering. It is mainly used in situations where the work site is small, the ground is uneven, and the work content changes frequently. The attachments configured for skid loaders are becoming more and more diverse. In one work scenario, a skid loader may need to use multiple attachments to perform operations. Therefore, the rapid replacement of attachments has become a breakthrough point for improving work efficiency.

[0003] However, during the replacement of accessories, since the existing technology basically uses positioning pins to position the tooling, which is then locked with screws, when the product is changed, the original tooling needs to be removed, and then the new tooling needs to be installed and locked, which is not only manpower-consuming but also time-consuming.

[0004] Therefore, those skilled in the art are in urgent need of developing a quick-change mechanism. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a quick-change mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quick-change mechanism, comprising a box body, a first partition is provided inside the box body, an L-shaped plate is provided on the left side of the first partition, the number of the L-shaped plates is two and they are symmetrically distributed up and down, a first oblique wedge block is provided between the L-shaped plates, the first oblique wedge block is slidably connected to the L-shaped plate, and the right end of the first oblique wedge block is connected to a driving assembly; a second oblique wedge is provided at the left end of the first oblique wedge block, a second sliding rod is provided on the upper side of the second oblique wedge block, and a movable pin is provided on the lower side of the second oblique wedge block, the top end of the second sliding rod extends to the outside of the box body, and the second sliding rod is slidably connected to the box body, and the bottom end of the movable pin extends to the outside of the box body, and the movable pin is slidably connected to the box body The cam is connected to the second cam by a spring, and the cam is connected to the first cam by a spring, and the cam is connected to the second cam by a spring.

[0007] Preferably, the first sliding rod is slidably connected to the first partition, a second partition placed side by side is provided on the right side of the first partition, a threaded rod is rotatably arranged between the first partition and the second partition, the threaded rod is threadedly connected to the push plate, and a guide rod is also provided between the first partition and the second partition, the guide rod passes through the push plate, and the guide rod is slidably connected to the push plate.

[0008] Preferably, the driving assembly includes a motor, which is located above the box body, the right end of the threaded rod extends to the right side of the second partition and is connected to the first bevel tooth, the motor is fixedly connected to the box body through a motor fixing seat, the output end of the motor extends into the box body and is connected to the second bevel tooth, and the first bevel tooth and the second bevel tooth are meshed with each other.

[0009] Preferably, the first partition plate, the second partition plate and the L-shaped plate are respectively fixedly connected to the inner wall of the box body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The second bevel gear is driven to rotate by the motor, and the second bevel gear is meshed with the first bevel gear, thereby driving the first bevel gear to rotate, and the first bevel gear drives the threaded rod to rotate, and the threaded rod is threadedly connected to the push plate. The push plate is driven to move left and right through the forward and reverse rotation of the motor, thereby realizing the lifting and lowering of the movable pin, and quickly realizing the coordination of the attachment and the quick-change mechanism, effectively saving assembly time and manpower. By adopting this structure, hundreds of attachments can be coordinated to realize functions such as shoveling, milling, clamping, snow sweeping, and land reclamation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front structural sectional view of the utility model;

[0013] Figure 2 for Figure 1 A magnified view of the structure in the middle.

[0014] In the figure: 1-box; 2-first partition; 3-second partition; 4-first inclined wedge; 5-first slide bar; 6-first spring; 7-L-shaped plate; 8-second inclined wedge; 9-movable pin; 10-second slide bar; 11-second spring; 12-threaded rod; 13-push plate; 14-motor; 15-guide rod; 16-motor fixing seat; 17-first oblique tooth; 18-second oblique tooth; 19-accessory. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1-Figure 2 The utility model provides an embodiment: a quick-change mechanism comprises a box body 1, a first partition plate 2 is arranged inside the box body 1, an L-shaped plate 7 is arranged on the left side of the first partition plate 2, the number of the L-shaped plates 7 is two and they are symmetrically distributed up and down, a first oblique wedge block 4 is arranged between the L-shaped plates 7, the first oblique wedge block 4 is slidably connected with the L-shaped plate 7, and the right end of the first oblique wedge block 4 is connected with a driving assembly; a second oblique wedge block 8 is arranged on the left end of the first oblique wedge block 4, a second sliding rod 10 is arranged on the upper side of the second oblique wedge block 8, and a movable pin 9 is arranged on the lower side of the second oblique wedge block 8, the top end of the second sliding rod 10 extends to the outside of the box body 1, and the second sliding rod 10 is slidably connected with the box body 1, the bottom end of the movable pin 9 extends to the outside of the box body 1, and the movable pin 9 is slidably connected with the box body 1; the first oblique wedge block 4 and the second oblique wedge block 8 are respectively provided with a first inclined surface and a second inclined surface at positions opposite to each other, the first inclined surface is in sliding contact with the second inclined surface, and in the process of the first oblique wedge block 4 moving to the right, the second oblique wedge block 8 is pushed to slide upward.

[0019] Furthermore, the first inclined surface and the second inclined surface both adopt a 45° structure.

[0020] Furthermore, the right end of the first inclined wedge block 4 is connected to the first sliding rod 5, the right end of the first sliding rod 5 extends to the right side of the first partition 2 and is connected to the push plate 13, the first sliding rod 5 is slidably connected to the first partition 2, a second partition 3 placed side by side is provided on the right side of the first partition 2, a threaded rod 12 is rotatably arranged between the first partition 2 and the second partition 3, the threaded rod 12 is threadedly connected to the push plate 13, a guide rod 15 is also provided between the first partition 2 and the second partition 3, the guide rod 15 passes through the push plate 13, and the guide rod 15 is slidably connected to the push plate 13.

[0021] Furthermore, a first spring 6 is provided between the first partition plate 2 and the push plate 13, the first spring 6 is sleeved on the first slide bar 5, and the second spring 11 is sleeved on the second slide bar 10. When the first inclined wedge block 4 moves to the left, the first spring 6 is compressed, the first inclined wedge block 4 drives the second inclined wedge block 8 to move upward, and the second spring 11 is also compressed; when quick change is required, by driving the first inclined wedge block 4 to move right, the first spring 6 restores its elastic deformation and pushes the push plate 13 to move quickly to the right. At the same time, the second spring 11 restores its elastic deformation and drives the second inclined wedge block 8 to move downward, thereby realizing quick assembly between the movable pin 9 and the attachment 19, effectively saving assembly time and manpower.

[0022] Furthermore, the driving assembly includes a motor 14, which is located above the box body 1. The right end of the threaded rod 12 extends to the right side of the second partition 3 and is connected to the first bevel gear 17. The motor 14 is fixedly connected to the box body 1 through a motor fixing seat 16. The output end of the motor 14 extends into the box body 1 and is connected to the second bevel gear 18. The first bevel gear 17 and the second bevel gear 18 are meshed with each other. The second bevel gear 18 is driven to rotate by the motor 14. The second bevel gear 18 is meshed with the first bevel gear 17, thereby driving the first bevel gear 17 to rotate. The first bevel gear 17 drives the threaded rod 12 to rotate. The threaded rod 12 is threadedly connected to the push plate 13. The push plate 13 is driven to move left and right through the forward and reverse rotation of the motor 14.

[0023] Furthermore, the first partition plate 2 , the second partition plate 3 and the L-shaped plate 7 are fixedly connected to the inner wall of the box body 1 , respectively.

[0024] Working principle of the utility model: When the utility model is in use, the staff starts the motor 14, the motor 14 drives the second bevel gear 18 to rotate, the second bevel gear 18 and the first bevel gear 17 are meshed with each other, thereby driving the first bevel gear 17 to rotate, the first bevel gear 17 drives the threaded rod 12 to rotate, the threaded rod 12 is threadedly connected to the push plate 13, and the push plate 13 is driven to move left and right through the forward and reverse rotation of the motor 14; when quick change is required, it is only necessary to drive the push plate 13 to move left, and the push plate 13 drives the second bevel gear 18 to rotate through the first bevel wedge block 4. The inclined wedge block 8 moves upward, the first spring 6 and the second spring 11 are compressed, and the second inclined wedge block 8 drives the movable pin 9 to move upward, thereby realizing the separation of the movable pin 9 and the accessory 19. After the replacement is completed, the motor 14 rotates in the opposite direction, and the push plate 13 drives the first inclined wedge block 4 to move right. The first spring 6 restores its elastic deformation and pushes the push plate 13 to move quickly to the right. At the same time, the second spring 11 restores its elastic deformation and drives the second inclined wedge block 8 to move downward, and the movable pin 9 is inserted into the corresponding groove of the accessory 19 and locked, thereby realizing the rapid assembly between the movable pin 9 and the accessory 19.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick-change mechanism, comprising a housing (1), characterized in that: A first partition (2) is provided inside the box body (1), an L-shaped plate (7) is provided on the left side of the first partition (2), the number of the L-shaped plates (7) is two and they are symmetrically distributed up and down, a first inclined wedge block (4) is provided between the L-shaped plates (7), the first inclined wedge block (4) is slidably connected to the L-shaped plate (7), and the right end of the first inclined wedge block (4) is connected to a driving component; A second inclined wedge block (8) is provided at the left end of the first inclined wedge block (4), a second sliding rod (10) is provided on the upper side of the second inclined wedge block (8), a movable pin (9) is provided on the lower side of the second inclined wedge block (8), the top end of the second sliding rod (10) extends to the outside of the box body (1), and the second sliding rod (10) is slidably connected to the box body (1), and the bottom end of the movable pin (9) extends to the outside of the box body (1), and the movable pin (9) is slidably connected to the box body (1); The first inclined wedge block (4) and the second inclined wedge block (8) are respectively provided with a first inclined surface and a second inclined surface at positions facing each other, and the first inclined surface is in sliding contact with the second inclined surface; The right end of the first inclined wedge block (4) is connected to a first slide bar (5), the right end of the first slide bar (5) extends to the right side of the first partition plate (2) and is connected to the push plate (13), a first spring (6) is provided between the first partition plate (2) and the push plate (13), the first spring (6) is sleeved on the first slide bar (5), and a second spring (11) is sleeved on the second slide bar (10); When the first inclined wedge block (4) moves to the left, the first spring (6) is compressed, the first inclined wedge block (4) drives the second inclined wedge block (8) to move upward, and the second spring (11) is also compressed; when the first inclined wedge block (4) moves to the right, the first spring (6) restores its elastic deformation and pushes the push plate (13) to move quickly to the right, while the second spring (11) restores its elastic deformation and drives the second inclined wedge block (8) to move downward.

2. A quick-change mechanism according to claim 1, characterized in that: The first sliding rod (5) is slidably connected to the first partition (2); a second partition (3) is placed side by side on the right side of the first partition (2); a threaded rod (12) is rotatably arranged between the first partition (2) and the second partition (3); the threaded rod (12) is threadedly connected to the push plate (13); a guide rod (15) is also arranged between the first partition (2) and the second partition (3); the guide rod (15) passes through the push plate (13), and the guide rod (15) is slidably connected to the push plate (13).

3. A quick-change mechanism according to claim 2, characterized in that: The driving assembly comprises a motor (14), wherein the motor (14) is located above the housing (1), the right end of the threaded rod (12) extends to the right side of the second partition (3) and is connected to the first bevel gear (17), the motor (14) is fixedly connected to the housing (1) via a motor fixing seat (16), the output end of the motor (14) extends into the housing (1) and is connected to the second bevel gear (18), and the first bevel gear (17) and the second bevel gear (18) are meshed with each other.

4. A quick-change mechanism according to claim 2, characterized in that: The first partition plate (2), the second partition plate (3) and the L-shaped plate (7) are respectively fixedly connected to the inner wall of the box body (1).

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