Pushing mechanism of fire grate

Abstract

The utility model relates to a pushing mechanism of a fire grate, which comprises a rotating shaft, a pushing rod and a pushing rod, the shifting piece is coaxially arranged on the rotating shaft; the driving mechanism is arranged on the fire grate bracket; the notch piece is arranged on the fire grate; wherein a block body is arranged on the rotating shaft; the block body is arranged in the notch piece; the driving mechanism drives the rotating shaft and the shifting piece to rotate, and the block body forms push-pull force on the notch piece to drive the fire grate to move in a reciprocating mode. The problems that in an existing scheme, due to the multi-stage power transmission process, the stroke of driving force is long, and the working efficiency of driving is low are solved.

Description

Technical Field

[0001] The utility model relates to the field of driving mechanisms, in particular to a driving mechanism for a grate. Background Art

[0002] The driving mechanism of the grate is: an electric motor is used to drive the driving shaft to rotate, and then the reduction mechanism drives the pull rod to move through the eccentric wheel, thereby converting the rotary motion into a reciprocating motion actuator.

[0003] This means that the driving force undergoes a multi-stage power transmission process from the generation of the driving force to the reciprocating movement of the grate, which makes the driving force travel longer and the driving efficiency lower.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a grate pushing mechanism to solve the problem that the prior art has undergone a multi-stage power transmission process, resulting in a long driving force stroke and low driving efficiency.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A grate driving mechanism;

[0008] It comprises: a rotating shaft, rotatably arranged on a grate support; a toggle member, coaxially arranged on the rotating shaft; a driving mechanism, arranged on the grate support; a notch member, arranged on the grate; wherein a block is arranged on the rotating shaft; the block is placed in the notch member; the driving mechanism drives the rotating shaft and the toggle member to rotate, and the block forms a pushing and pulling force on the notch member, driving the grate to move back and forth.

[0009] A further technical solution is: the notch member comprises: an outer frame, which is arranged on the grate; an inner member, which is arranged in the outer frame; wherein a notch is formed on the inner member; and the block is placed in the notch and moves along the notch.

[0010] A further technical solution is: the notch includes a working surface and a limiting surface; when the block is placed in the notch, the block contacts the working surface; when the block moves along the notch toward the limit position, the block contacts the limiting surface.

[0011] A further technical solution is: a limiting piece is arranged inside the outer frame; a cutout is formed on the inner piece; when the inner piece is arranged inside the outer frame, the cutout fits the limiting piece.

[0012] A further technical solution is: the inner part is arranged in the outer frame through a fixing component; the fixing component is relatively threadedly connected to the outer frame; the fixing component on one side is threadedly connected to the inner part; the fixing component on the other side forms a conical surface; an inclined surface is formed on the inner part; when the fixing component on the other side presses the inner part, the conical surface fits the inclined surface.

[0013] A further technical solution is: the fixing assembly includes a fastener threadedly connected to the outer frame, a locking member for fixing the fastener, and a gasket sleeved on the fastener; the locking member is threadedly connected to the fastener; the locking member presses the gasket; and the gasket presses the outer frame.

[0014] A further technical solution is: a mounting seat is arranged on the grate bracket; a shaft body is installed on the mounting seat; and the driving mechanism rotates along the shaft body.

[0015] A further technical solution is: the toggle member forms an extension portion toward the driving end of the driving mechanism; a connecting shaft is arranged on the extension portion; and the driving end of the driving mechanism is movably connected to the connecting shaft.

[0016] A further technical solution is: a plate for placing the toggle member and an elastic mechanism for elastically pushing the plate are arranged on the grate support; the plate is slidably arranged on the grate support; and the elastic mechanism is relatively arranged on both sides of the plate.

[0017] Compared with the prior art, the beneficial technical effects of the utility model are as follows: (1) the driving end of the driving mechanism reciprocates and alternately extends and retracts, and the driving mechanism drives the rotating shaft and the toggle member to rotate while rotating forward and reversely. The toggle member drives the block to move reciprocally and alternately, and the block forms a reciprocating push-pull force on the notch member, thereby driving the grate to move back and forth; in the present application, the block is directly arranged on the rotating shaft, and the block directly forms a push-pull force on the notch member, thereby driving the grate to move back and forth, avoiding the multi-stage transmission process, making the driving mechanism drive the grate with a shorter stroke and a higher driving efficiency.

[0018] (2) When the block moves in one direction or in another direction, the block contacts the working surface and moves along the working surface; when the block moves in one direction or in another direction to the extreme position, the block contacts the limiting surface, and the limiting surface prevents the block from escaping from the notch; both the working surface and the limiting surface are arc surfaces, and the arc curvature of the working surface is relatively gentle, which facilitates the movement of the block along the working surface; the limiting surface is in a steep state to form a restriction on the block.

[0019] (3) One side of the inner part is fixed by a fixing assembly on one side, and the other side of the inner part is pressed by a fixing assembly on the other side. By adjusting the pressing force of the fixing assembly on the other side, a hard connection between the rotating shaft and the notch part is avoided.

[0020] (4) The spring exerts a thrust on the elastic rod, causing the elastic rod to elastically contact the plate; the toggle member pushes the plate to slide and translate back and forth during the reciprocating swing process. During the movement of the plate, the elastic mechanism exerts an elastic thrust on the plate, causing the plate to move smoothly, thereby ensuring the smooth swing of the toggle member. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure shows the installation diagram of the pushing mechanism of the grate in the embodiment of the utility model.

[0022] Figure 2 The schematic diagram of the structure of the driving mechanism of the grate in the embodiment of the utility model is shown.

[0023] Figure 3 An enlarged structural diagram of the notch member of an embodiment of the utility model is shown.

[0024] Markings in the accompanying drawings: 1. rotating shaft; 11. block; 2. toggle member; 21. extension; 22. connecting shaft; 3. driving mechanism; 31. mounting seat; 32. shaft body; 4. notch member; 41. outer frame; 42. inner member; 43. notch; 431. working surface; 432. limiting surface; 44. limiting member; 45. incision; 46. fixing assembly; 461. fastener; 462. locking member; 463. gasket; 47. conical surface; 48. inclined surface; 5. plate; 51. elastic mechanism; 511. elastic cylinder; 512. spring; 513. elastic rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0026] Figure 1 The figure shows the installation diagram of the pushing mechanism of the grate in the embodiment of the utility model. Figure 2The schematic diagram of the structure of the grate driving mechanism of the utility model is shown. Figure 1 and Figure 2 As shown, the utility model discloses a grate pushing mechanism.

[0027] The grate pushing mechanism comprises: a rotating shaft 1 rotatably arranged on the grate support, a toggle member 2 coaxially arranged on the rotating shaft 1, a driving mechanism 3 arranged on the grate support and a notch member 4 arranged on the grate.

[0028] The toggle members 2 may be one group or multiple groups. The rotation of the rotating shaft 1 can be completed by toggling one group or multiple groups of toggle members 2, thereby completing the reciprocating movement of the grate.

[0029] A block 11 is disposed on the rotating shaft 1 , and the position of the block 11 corresponds to the position of the notch 4 , and the block 11 is placed in the notch 4 .

[0030] The driving end of the driving mechanism 3 extends and retracts alternately and reciprocatingly. The driving mechanism 3 drives the rotating shaft 1 and the toggle member 2 to rotate while rotating alternately in the forward and reverse directions. The toggle member 2 drives the block 11 to move alternately and reciprocatingly. The block 11 forms a reciprocating push-pull force on the notch member 4, driving the grate to move back and forth.

[0031] In the present application, the block 11 is directly arranged on the rotating shaft 1, and the block 11 directly forms a push-pull force on the notch member 4, thereby driving the grate to move back and forth, avoiding the multi-stage transmission process, so that the driving mechanism 3 drives the grate with a shorter stroke and a higher driving efficiency.

[0032] Figure 3 The enlarged structural diagram of the notch member of the embodiment of the utility model is shown. Figures 1 - 3 As shown:

[0033] The notch member 4 includes an outer frame 41 disposed on the grate and an inner member 42 disposed inside the outer frame 41 .

[0034] A notch 43 is formed on the inner part 42 . The block 11 is placed in the notch 43 and moves along the notch 43 .

[0035] The outer frame 41 is fixed on the grate at an angle so that the notch 43 faces the block 11. When the block 11 forms a reciprocating push and pull force on the notch member 4, the block 11 moves in a reciprocating direction in the notch 43. The notch 43 restricts the block 11, preventing the block 11 from escaping from the notch 43, thereby completing the power transmission.

[0036] The notch 43 includes a working surface 431 and a limiting surface 432. When the block 11 is placed in the notch 43, the block 11 contacts the working surface 431. When the block 11 moves toward the limit position along the notch 43, the block 11 contacts the limiting surface 432.

[0037] The limiting surfaces 432 are located on both sides of the working surface 431. There is a circular arc transition between the working surface 431 and the limiting surfaces 432.

[0038] During the reciprocating rotation of the block 11 in the forward and reverse directions of the rotating shaft 1, when the block 11 moves in one direction and reaches the extreme position in one direction, the block 11 moves in the other direction. When it reaches the extreme position in the other direction, the block 11 moves in one direction, and so on, reciprocating alternately.

[0039] When the block 11 moves in one direction or during the movement in one direction, the block 11 contacts the working surface 431 and moves along the working surface 431. When the block 11 moves in one direction or to the extreme position in one direction, the block 11 contacts the limiting surface 432, and the limiting surface 432 prevents the block 11 from detaching from the notch 43.

[0040] Both the working surface 431 and the limiting surface 432 are circular arc surfaces. The circular arc of the working surface 431 is relatively gentle, facilitating the movement of the block 11 along the working surface 431. The limiting surface 432 is in a steep state to form a restriction on the block 11.

[0041] A limiting member 44 is fixedly arranged inside the outer frame 41. The surface of the limiting member 44 is formed with edges and corners. Exemplarily, the cross-section of the limiting member 44 is square.

[0042] A notch 45 is formed at a position where the inner member 42 is close to the limiting member 44. The inner surface of the notch 45 and the outer surface of the limiting member 44 are parallel to each other, so that when the inner member 42 is arranged inside the outer frame 41, the notch 45 fits the limiting member 44.

[0043] The edges and corners of the limiting member 44 form a restriction on the inner member 42, and with the cooperation of the fixing assembly 46, the inner member 42 is fixed inside the outer frame 41.

[0044] The inner member 42 is arranged inside the outer frame 41 through the fixing assembly 46. Exemplarily, there are two groups of fixing assemblies 46. The fixing assemblies 46 are relatively threadedly connected to the outer frame 41. One side of the fixing assembly 46 is threadedly connected to the inner member 42. The other side of the fixing assembly 46 forms a conical surface 47. A bevel surface 48 is formed at a position on the inner member 42 close to the other side of the fixing assembly 46. When the other side of the fixing assembly 46 presses the inner member 42, the conical surface 47 fits the bevel surface 48.

[0045] One side of the inner member 42 is fixed by one side of the fixing assembly 46, and the other side of the inner member 42 is pressed by the other side of the fixing assembly 46. By adjusting the pressing force of the other side of the fixing assembly 46, a hard connection between the rotating shaft 1 and the notch member 4 is avoided.

[0046] The fixing component 46 includes a fastener 461 threadedly connected to the outer frame 41, a locking member 462 for fixing the fastener 461, and a gasket 463 sleeved on the fastener 461. Exemplarily, the fastener 461 is a threaded rod. Exemplarily, the locking member 462 is a nut. Exemplarily, the gasket 463 is a metal gasket. A conical surface 47 is formed at the end of the fastener 461 on the other fixing component 46.

[0047] The locking member 462 is threadedly connected to the fastener 461. The locking member 462 presses the gasket 463. The gasket 463 presses the outer frame 41. The gasket 463 is located between the locking member 462 and the outer frame 41.

[0048] The fastener 461 can be firmly fixed to the outer frame 41 by the locking member 462, and the loosening of the locking member 462 is avoided by the gasket 463.

[0049] A mounting seat 31 is fixedly arranged on the grate support. A shaft body 32 is mounted on the mounting seat 31. The shaft body 32 passes through the driving mechanism 3. The driving mechanism 3 rotates along the shaft body 32. Exemplarily, the driving mechanism 3 is a hydraulic cylinder.

[0050] The toggling member 2 forms an extension 21 in the direction of the driving end of the driving mechanism 3. The toggling member 2 extends downward to form the extension 21. A connecting shaft 22 is arranged on the extension 21. The connecting shaft 22 passes through the driving end of the driving mechanism 3. The driving end of the driving mechanism 3 is movably connected to the connecting shaft 22.

[0051] When the driving end of the driving mechanism 3 extends, the driving mechanism 3 exerts a pushing force on the extension 21, and drives the rotating shaft 1 to rotate clockwise forward by a certain angle through the toggling member 2. When the driving end of the driving mechanism 3 contracts, the driving mechanism 3 exerts a pulling force on the extension 21, and drives the rotating shaft 1 to rotate counterclockwise backward by a certain angle through the toggling member 2.

[0052] Through the reciprocating extension and contraction of the driving end of the driving mechanism 3, the reciprocating movement of the grate is completed. The power transmission stroke of the driving mechanism 3 is short, there is no multi-stage transmission in the traditional scheme, and the pushing efficiency is high.

[0053] A plate 5 for placing the toggling member 2 and an elastic mechanism 51 for elastically pushing the plate 5 are arranged on the grate support. The plate 5 is slidably arranged on the grate support. The elastic mechanisms 51 are oppositely arranged on both sides of the plate 5.

[0054] The plate 5 is horizontally slidably arranged on the grate support. Exemplarily, the elastic mechanism 51 is in two groups. The elastic mechanism 51 includes an elastic tube 511 arranged on the grate support, a spring 512 arranged in the elastic tube 511, and an elastic rod 513 slidably arranged in the elastic tube 511. The spring 512 forms a thrust on the elastic rod 513, so that the elastic rod 513 elastically contacts the plate 5. The toggle member 2 pushes the plate 5 to slide back and forth during the reciprocating swing process. During the movement of the plate 5, the elastic mechanism 51 forms an elastic thrust on the plate 5, so that the plate 5 moves smoothly, thereby ensuring the smooth swing of the toggle member 2.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A grate pushing mechanism, characterized in that: include: A rotating shaft (1) is rotatably mounted on the grate support; A toggle member (2) is coaxially arranged on the rotating shaft (1); A driving mechanism (3) is arranged on the grate support; A notch member (4) is arranged on the grate; Wherein, a block (11) is arranged on the rotating shaft (1); the block (11) is placed in the notch member (4); the driving mechanism (3) drives the rotating shaft (1) and the toggle member (2) to rotate, and the block (11) forms a push-pull force on the notch member (4), driving the grate to move back and forth.

2. The grate pushing mechanism according to claim 1, characterized in that: The notch member (4) comprises: an outer frame (41) arranged on the grate; An inner part (42) is arranged inside the outer frame (41); A notch (43) is formed on the inner part (42); the block (11) is placed in the notch (43) and moves along the notch (43).

3. The grate pushing mechanism according to claim 2, characterized in that: The notch (43) comprises a working surface (431) and a limiting surface (432); when the block (11) is placed in the notch (43), the block (11) contacts the working surface (431); and when the block (11) moves toward an extreme position along the notch (43), the block (11) contacts the limiting surface (432).

4. The grate pushing mechanism according to claim 2, characterized in that: A limiting member (44) is arranged inside the outer frame (41); a cutout (45) is formed on the inner member (42); when the inner member (42) is arranged inside the outer frame (41), the cutout (45) fits the limiting member (44).

5. The grate pushing mechanism according to claim 4, characterized in that: The inner component (42) is arranged in the outer frame (41) through a fixing component (46); the fixing component (46) is relatively threadedly connected to the outer frame (41); one side of the fixing component (46) is threadedly connected to the inner component (42); the other side of the fixing component (46) forms a conical surface (47); an inclined surface (48) is formed on the inner component (42); when the other side of the fixing component (46) presses the inner component (42), the conical surface (47) fits the inclined surface (48).

6. The grate pushing mechanism according to claim 5, characterized in that: The fixing assembly (46) comprises a fastener (461) threadedly connected to the outer frame (41), a locking member (462) for fixing the fastener (461), and a gasket (463) sleeved on the fastener (461); the locking member (462) is threadedly connected to the fastener (461); the locking member (462) presses the gasket (463); and the gasket (463) presses the outer frame (41).

7. The grate pushing mechanism according to claim 1, characterized in that: A mounting seat (31) is arranged on the grate support; a shaft (32) is mounted on the mounting seat (31); and the driving mechanism (3) rotates along the shaft (32).

8. The grate pushing mechanism according to claim 1, characterized in that: The toggle member (2) forms an extension portion (21) in the direction of the driving end of the driving mechanism (3); a connecting shaft (22) is provided on the extension portion (21); and the driving end of the driving mechanism (3) is movably connected to the connecting shaft (22).

9. The grate pushing mechanism according to claim 1, characterized in that: A plate (5) for placing the toggle member (2) and an elastic mechanism (51) for elastically pushing the plate (5) are arranged on the grate support; the plate (5) is slidably arranged on the grate support; and the elastic mechanism (51) is relatively arranged on both sides of the plate (5).

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