Jacking mechanism for dredging grate

Abstract

The utility model relates to the technical field of waste incineration, and discloses a jacking mechanism for dredging a grate. The grate is fixedly installed on the top wall of the channel, a dredging end matched with sieve holes of the grate is arranged under the grate, and the dredging end is installed on a bottom plate which can slide relative to the grate in the vertical direction. The jacking mechanism is provided with a slope-shaped transition section which is arranged below the grate and can linearly move in a horizontal plane; the slope-shaped transition section can make contact with and extrude the bottom plate in the moving process, so that the bottom plate carries the dredging end to generate jacking action so as to be inserted into sieve holes of the grate for dredging. According to the utility model, the jacking mechanism is periodically propped against the dredging end, so that the dredging end is driven to slide to clean the sieve pores. Compared with the prior art, the principle and the structure are simpler, the dredging end below each grate does not need to be re-positioned independently, and the continuous and stable dredging efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage incineration technical field, specifically a kind of jacking mechanism for dredging grate. BACKGROUND

[0002] Garbage incineration power generation technology is increasingly popular, and the garbage leachate in the garbage storage accounts for about 20%-30% of the weight of the garbage. These leachate must be filtered through the leachate grate on the garbage storage channel before being discharged. The grate is easily clogged with debris in the leachate. The space of the garbage storage channel is limited, and there are a large number of grates, and the content of toxic and harmful gases is high. Manual dredging is not only inefficient but also poses a safety hazard.

[0003] The existing automatic dredging technology for grates generally involves setting a track extending along the distribution direction of the grate in the channel, setting a small car that can slide on the track, and installing a hydraulic system on the small car. The dredging structure is driven to clean the grate by the hydraulic system in cooperation with the transmission structure. This scheme can effectively dredge the grate, but the small car and the hydraulic system are too large to be easily deployed in the narrow channel space during the early stage and to be easily maintained during the later stage. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing structure for driving the dredging structure to clean the grate occupies a large space.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model discloses a jacking mechanism for dredging grate. The grate is fixedly installed on the top wall of the channel and has a dredging end with a mesh size matching that of the grate below. The dredging end is installed on a bottom plate that can slide in the vertical direction relative to the grate. The jacking mechanism has at least one slope transition section that can move linearly in the horizontal plane below the grate. The slope transition section can contact and press the bottom plate when moving, causing the bottom plate to carry the dredging end to produce a jacking action to insert the mesh of the grate for dredging.

[0007] As a further improvement of the above-mentioned scheme, the jacking mechanism includes multiple groups of first rollers. The multiple groups of first rollers are distributed on a carrier that can move linearly in the horizontal plane. According to the order of contact with the bottom plate, the heights of the multiple groups of first rollers gradually increase and then remain horizontal, so that the wheel surfaces of the groups of first rollers form a slope transition section and a horizontal retention section. When the bottom plate contacts the first rollers in the slope transition section, it can be gradually jacked from the initial height to the set height. When the bottom plate contacts the first rollers in the horizontal retention section, it can be maintained at the set height.

[0008] As a further improvement of the above-mentioned scheme, in the plurality of groups of first rollers, the first roller in contact with the bottom plate has an axial height of h1, and the outer edge of the first roller has a height of h2; the bottom plate has a height of h3 in the initial state, and h1 < h3 < h2 is satisfied.

[0009] As a further improvement of the above-mentioned scheme, when the bottom plate is lifted to a set height, the dredging end completely penetrates the corresponding screen hole.

[0010] As a further improvement of the above-mentioned scheme, the lifting mechanism further comprises a plurality of chain wheel assemblies; the plurality of chain wheel assemblies are linearly distributed below the top wall of the channel; the plurality of chain wheel assemblies are connected by a chain transmission and are driven by a power source to rotate synchronously; the outer ring of the chain and the plurality of first rollers are fixedly connected, thereby serving as a carrier for driving the first rollers to move.

[0011] As a further improvement of the above-mentioned scheme, the plurality of first rollers are fixedly connected between the support and the chain by a hoop.

[0012] As a further improvement of the above-mentioned scheme, the lifting mechanism comprises a wedge-shaped block; the wedge-shaped block is fixedly installed on a carrier capable of moving linearly in a horizontal plane; the slope surface of the wedge-shaped block forms a sloping transition section, and the slope bottom of the slope surface contacts the bottom plate first when the wedge-shaped block moves.

[0013] As a further improvement of the above-mentioned scheme, the lifting mechanism comprises a plurality of second rollers; the second rollers are installed at the bottom of the bottom plate, and the bottom plate contacts the sloping transition section through the wheel surface of the second rollers.

[0014] As a further improvement of the above-mentioned scheme, the outer edge of the second roller has a height of h4; the bottom end of the wedge-shaped block has a height of h5, and h4 > h5 is satisfied.

[0015] As a further improvement of the above-mentioned scheme, the top wall of the channel is fixedly installed with a plurality of optical shafts, and the bottom plate is slidably connected to the plurality of optical shafts, so as to be capable of sliding in the vertical direction relative to the grate.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The lifting mechanism has a sloping transition section, which can contact and press the bottom plate where the dredging end is located when moving, so that the bottom plate carrying the dredging end generates a lifting action to insert the screen hole of the grate for dredging.

[0018] 2. The utility model discloses a jacking mechanism periodically abuts with dredging end to drive the dredging end to slide to clean the screen hole. Compared with the prior art, the principle and structure of the utility model are simpler, and the dredging end under each grate does not need to be repositioned separately, ensuring continuous and stable dredging efficiency.

[0019] 3. The utility model discloses a plurality of first rollers fixed on the chain, and the height difference between the plurality of first rollers forms a slope transition section and a horizontal retaining section, so that the dredging end can be jacked to a set height and kept for a period of time, ensuring smoothness and effective dredging.

[0020] 4. The utility model discloses a wedge-shaped block to form a slope transition section, which can also jack the dredging end to a set height. DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic view of the dredging device and the local channel of the garbage pool leachate grate in the utility model embodiment 1.

[0022] Figure 2 It is the three-dimensional structure schematic view of the jacking mechanism and the dredging execution mechanism below four grates in the utility model embodiment 1.

[0023] Figure 3 It is the front view of the jacking mechanism and the dredging execution mechanism in the utility model embodiment 1. Figure 2

[0024] Figure 4 It is the front view of the grate and the dredging execution mechanism in the utility model embodiment 1.

[0025] Figure 5 It is the enlarged view of A in the utility model embodiment 1. Figure 3

[0026] Figure 6 It is the three-dimensional structure schematic view of the grate, the dredging execution mechanism and the local channel in the utility model embodiment 1.

[0027] Figure 7 It is the front view of the distribution of the plurality of first rollers on the chain in the utility model embodiment 1 (the color dotted line of the drawing indicates the slope transition section and the horizontal retaining section).

[0028] Figure 8 It is the three-dimensional structure schematic view of the first roller fixed on the chain through the hoop in the utility model embodiment 1.

[0029] Figure 9 It is the front view of the relative position of the wedge-shaped block, the second roller and the dredging execution mechanism in the utility model embodiment 2.

[0030] ​​In the figure: 1, dredging execution mechanism; 10, dredging end; 11, bottom plate; 12, top column; 13, elastic piece; 14, optical axis; 2, jacking mechanism; 21, first roller; 22, second roller; 23, chain wheel assembly; 231, chain wheel; 232, transmission shaft; 24, chain; 25, power source; 26, wedge block; 261, inclined surface; 3, grate; 30, screen hole; 4, channel; 5, liquid collecting cavity; 6, support table; 7, hoop. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1

[0033] Please refer to Figure 1 The grates 3 in the embodiment are provided in plurality and distributed on the channels 4. The grates 3 are horizontally arranged in the windows formed in the top walls of the channels 4, so as to form a vertical percolation direction. Of course, in some embodiments, considering that the garbage piles are arranged on the side walls of the channels 4, the grates 3 can also be vertically arranged on the side walls of the channels 4, so as to form a horizontal percolation direction. The percolate in the garbage piles can also flow to the liquid collecting cavities 5 on the other side along the horizontal direction.

[0034] Please refer to Figures 2 to 8 The embodiment provides a dredging device for a garbage pool percolate grate, which comprises a dredging execution mechanism 1 and a jacking mechanism 2.

[0035] The dredging execution mechanism 1 is installed in the liquid collecting cavities 5 on one side of the channels 4 and corresponds to the grates 3 in number. The dredging end 10 of each group of the dredging execution mechanism 1 is matched with the shape of the screen holes 30 on the corresponding grates 3 and can slide along the screen holes 30 in the axial direction.

[0036] In the embodiment, each group of the dredging execution mechanism 1 comprises a bottom plate 11, a top column 12, an elastic piece 13 and an optical axis 14.

[0037] In each group of unclogging execution mechanism 1, four optical axes 14 extending in the vertical direction are fixedly connected to the top wall of the channel 4 and located near each screen 3. The bottom plate 11 is slidingly installed on the plurality of optical axes 14, so that the bottom plate 11 can slide relative to the screen 3. The number of elastic members 13 corresponds to the number of optical axes 14. The elastic member 13 is a spring that is sleeved on the corresponding optical axis 14. The two ends of the spring are in contact with the bottom plate 11 and the top wall of the channel 4, respectively, for guiding the bottom plate 11 to return to the initial state, i.e., the unlifted state. Of course, in some embodiments, the elastic member 11 can also not be provided, and the bottom plate 11 can also be reset by its own gravity.

[0038] The bottom plate 11 is the mounting position of the unclogging end 10, and the upper surface is fixedly connected with a plurality of top columns 12. The plurality of top columns 12 constitute the unclogging end 10, and the top column 12 and the screen hole 30 on the screen 3 are matched in position and shape. When the bottom plate 11 is lifted to a set height, all the top columns 12 can penetrate through the corresponding screen hole 30, thereby playing a role of unclogging.

[0039] The driving end of the lifting mechanism 2 can move periodically in one direction along the distribution direction of the plurality of screens 3, and abut against the mounting position of each unclogging end 10 during movement, so that the unclogging end 10 slides axially to penetrate through the corresponding screen hole 30.

[0040] In this embodiment, the lifting mechanism 2 includes a sprocket assembly 23 and a plurality of first rollers 21.

[0041] The sprocket assembly 23 is provided with a plurality of groups and is linearly distributed below the top wall of the channel 4. The plurality of sprocket assemblies 23 are drivingly connected by chains 24 and are synchronously rotated by the driving of a power source 25. The first roller 21 is rotatably installed on one side of the chain 24 facing the top wall of the channel 4 and the wheel surface constitutes the driving end, which can realize periodic one-way movement with the conveying of the chain 24. The wheel surface of the first roller 21 abuts against the unclogging end 10 of each group of unclogging execution mechanism 1 in sequence during movement, so that the unclogging end 10 slides axially.

[0042] Each group of sprocket assemblies 23 is composed of two sprockets 231 and a transmission shaft 232. The two sprockets 231 are coaxially fixed on the transmission shaft 232. The two corresponding sprockets 231 of all sprocket assemblies 23 are drivingly connected by two chains 24.

[0043] A support table 6 is fixedly installed on the bottom wall of the liquid collecting cavity 5, and the lifting mechanism 2 is installed on the support table 6. Specifically, the transmission shaft of each sprocket assembly 23 can be rotatably installed on the support table 6.

[0044] The power source 25 adopts a reduction motor. The reduction motor is relatively fixed with the channel 4, and the output shaft of the motor is coaxially fixed with the transmission shaft 232 of one of the sprocket assemblies 23, thereby providing sufficient torque for the movement of the sprocket 231.

[0045] The outer ring of the chain 24 can replace the trolley in the prior art as a driving end to move linearly, and the structure can realize periodic movement. After the driving end lifts all the bottom plates 11 in its stroke, the driving end can return to the starting point through the continuous operation of the sprocket assembly 23, and then move from the same direction and act on the bottom plates 11. Moreover, compared with the track trolley, the chain-sprocket structure is smaller in size and is convenient to deploy and maintain.

[0046] Of course, in some embodiments, the chain-sprocket structure can also be replaced by a conveyor belt, which can also achieve the effect of approaching. Considering that the landfill leachate falls from above, the transmission structure can be isolated and protected by a protective shell. In this embodiment, the sprocket assembly 23, the chain 24, the bottom plate 11, the top column 12 and other key components can be made of corrosion-resistant materials such as stainless steel.

[0047] A plurality of first rollers 21 are equidistantly distributed on the chain 24, and the support of the first roller 21 and the chain 24 are fixedly connected through the hoop 7. According to the order of contact with the bottom plate 11, the height of the plurality of first rollers 21 presents a trend of gradually increasing and then keeping horizontal, so that the wheel surface of each group of first rollers 21 forms a sloping transition section and a horizontal keeping section. Among them, the bottom plate 11 can be gradually lifted from the initial height to the set height when it contacts the first roller 21 in the sloping transition section, and the bottom plate 11 can be kept at the set height when it contacts the first roller 21 in the horizontal keeping section.

[0048] In the plurality of first rollers 21 in this embodiment, the first roller 21 that can contact the bottom plate 11 has an axial height of h1, and the outer edge top of the first roller 21 has a height of h2; the bottom plate 11 has a lower surface height of h3 in the initial state, and h1 < h3 < h2 is satisfied. In this way, when the first roller 21 contacts the bottom plate 11, it can be ensured that the device will not be stuck, and the bottom plate 11 can be smoothly lifted by the upper edge of the first roller 21.

[0049] The present application can periodically unblock the grate 3 by extruding the bottom plate 11 through the sloping transition section arranged to move with the chain 24. Compared with the hydraulic system + hinged transmission structure in the prior art, the device occupies less volume, and the convenience of deployment and maintenance of the device is improved. The structure is simple and does not need to be pre-positioned for each unblocking action, saving costs.

[0050] In this embodiment, the number of sprocket assemblies 23 corresponds to the number of grates 3, and the two sprockets 231 in each sprocket assembly 23 are located directly below the corresponding grate 3. In this way, when the first roller 21 moves to this position to lift the bottom plate 11, the sprocket assembly 23 can provide support for the chain 24 to avoid bending the chain 24 to ensure that the bottom plate 11 is smoothly lifted

[0051] Embodiment 2

[0052] Please refer to Figure 9 The embodiment provides a jacking mechanism 2, which is different from the jacking mechanism 1 in that the jacking mechanism 2 comprises a wedge block 26 and a set of second rollers 22.

[0053] The wedge block 26 is fixedly installed on a carrier capable of moving linearly in a horizontal plane, which can be the chain 24 transmission structure in the embodiment 1 or a conveyor belt. Considering that the volume of the wedge block 26 is larger than that of the first roller 21 in the embodiment 1, the bottom of the wedge block 26 can be welded on one of the chain links of the chain 24, so as to ensure the stability of the wedge block 26 when the chain 24 passes through the sprocket 231 (turns).

[0054] The inclined surface 261 of the wedge block 26 forms a slope transition section, and the slope bottom of the inclined surface 261 is first contacted with the bottom plate 11 when the wedge block 26 moves.

[0055] The second rollers 22 are installed at the bottom of the bottom plate 11, and the bottom plate 11 is contacted with the wheel surface of the second rollers 22 and the slope transition section, so as to further improve the smoothness of the cooperation between the components during the jacking action.

[0056] The height of the outer edge bottom end of the second roller 22 is h4, and the height of the bottom end of the wedge block 26 is h5, and h4>h5 is satisfied, so as to ensure that the bottom plate 11 can be smoothly jacked up by the inclined surface 261.

[0057] The above only describes the preferred specific embodiments of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model can be equivalently replaced or changed, and all should be covered in the protection scope of the utility model.

Claims

1. A lifting mechanism for unclogging grates, characterized in that, The grate (3) is fixedly installed on the top wall of the channel (4), and a dredging end (10) matching its own screen holes (30) is provided directly below it. The dredging end (10) is installed on the base plate (11) which can slide relative to the grate (3) in the vertical direction. The lifting mechanism (2) has at least one sloping transition section located below the grate (3) and capable of moving linearly in the horizontal plane. The sloping transition section can contact and squeeze the base plate (11) when moving, causing the base plate (11) to carry the dredging end (10) to generate a lifting action to insert into the screen holes (30) of the grate (3) for dredging.

2. The lifting mechanism for unclogging a grate according to claim 1, characterized in that, It includes multiple sets of first rollers (21); the multiple sets of first rollers (21) are distributed on a vehicle that can move linearly in a horizontal plane; according to the order of contact with the base plate (11), the height of the multiple sets of first rollers (21) gradually increases and then remains horizontal, so that the wheel surface of each set of first rollers (21) forms a sloping transition section and a horizontal holding section; wherein, when the base plate (11) contacts the first roller (21) in the sloping transition section, it can be gradually lifted from the initial height to the set height, and when the base plate (11) contacts the first roller (21) in the horizontal holding section, it can be held at the set height.

3. A lifting mechanism for unclogging a grate according to claim 2, characterized in that, Among the multiple sets of first rollers (21), the first roller (21) that can contact the base plate (11) has an axis height of h1 and an outer edge top height of h2; the lower surface height of the base plate (11) in the initial state is h3, satisfying h1 < h3 < h2.

4. A lifting mechanism for unclogging a grate according to claim 2, characterized in that, When the base plate (11) is lifted to the set height, the unblocking end (10) completely penetrates the corresponding sieve hole (30).

5. A lifting mechanism for unclogging a grate according to any one of claims 2 to 4, characterized in that, It also includes multiple sets of sprocket assemblies (23); multiple sets of sprocket assemblies (23) are linearly distributed below the top wall of the channel (4); multiple sets of sprocket assemblies (23) are connected by a chain (24) and rotate synchronously by a power source (25); the outer ring of the chain (24) is fixedly connected to multiple sets of first rollers (21) to serve as a vehicle for driving the first rollers (21) to move.

6. A lifting mechanism for unclogging a grate according to claim 5, characterized in that, The supports of multiple sets of first rollers (21) and chains (24) are fixedly connected by hoops (7).

7. A lifting mechanism for unclogging a grate according to claim 1, characterized in that, Includes a wedge block (26); the wedge block (26) is fixedly mounted on a vehicle that can move linearly in a horizontal plane; the slope surface (261) of the wedge block (26) forms the slope transition section, and the bottom of the slope surface (261) contacts the base plate (11) first when moving.

8. A lifting mechanism for unclogging a grate according to claim 7, characterized in that, It includes a set of second rollers (22); the second rollers (22) are mounted on the bottom of the base plate (11), and the base plate (11) contacts the sloping transition section through the wheel surface of the second rollers (22).

9. A lifting mechanism for unclogging a grate according to claim 8, characterized in that, The height of the bottom edge of the second roller (22) is h4; the height of the bottom edge of the wedge block (26) is h5, satisfying h4>h5.

10. A lifting mechanism for unclogging a grate according to any one of claims 1 to 4 and 7 to 9, characterized in that, Multiple optical axes (14) are fixedly installed on the top wall of the channel (4), and the base plate (11) is slidably connected to the multiple optical axes (14), so that it can slide relative to the grate (3) in the vertical direction.

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