Drive device
By using a combination structure of track support plate, track, base and sliding plate in the hydraulic cylinder drive device, the problem of hydraulic cylinder movement is solved, a compact layout and improved stability are achieved, and the maintenance process is simplified.
Patent Information
- Application Number
- CN202520507038.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-26
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In hydraulic cylinder drive devices, as the operating time increases, the hydraulic cylinder and the hydraulic cylinder rod connection are prone to change (such as sinking), causing the front end of the reciprocating drive to tilt. Existing technology solves this problem by using a rolling limiter, but this requires space and is costly.
The system employs a combined structure of track support plate, track, base, and sliding plate, which is fixed to the steel frame by multiple fixing mechanisms. The track and sliding plate are formed using wear-resistant materials, and the sliding plate engages with the track to prevent wear on the sliding parts, thus achieving a compact layout.
It effectively suppresses the variation of the hydraulic cylinder relative to the reciprocating drive, improves the stability and maintenance convenience of the drive device, and avoids the increase of complex mechanical devices.
Smart Images
Figure CN223868277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a drive device using a hydraulic cylinder. Background Technology
[0002] Currently, reciprocating motion mechanisms are common mechanical motion mechanisms in production sites and living environments. Among these mechanisms, hydraulic cylinder drive devices are widely used due to their high reliability, stable power, and ease of control. For example, in the field of waste incineration, hydraulic cylinders are installed on the steel frame of the incinerator to reciprocate the grate plates connected via hydraulic cylinder rods, thereby achieving adjustment of the waste layer and stable combustion (see Patent Document 1 below).
[0003] However, in the technology described in Patent Document 1, which uses a hydraulic cylinder mounted on a steel frame to reciprocate a heavy object such as a grate, the hydraulic cylinder and the hydraulic cylinder rod connection (i.e., the rear end of the reciprocating drive) tend to shift (e.g., sink) relative to the reciprocating drive direction over time. Due to excessive resistance at the front end and insufficient support at the bottom, the front end of the reciprocating drive is prone to tilting. Generally, this problem is mostly solved by adding rolling limits to the front and rear ends. Compared to other methods, rolling limits offer advantages such as high stability and less wear, but they require space in their layout and are more expensive.
[0004] Existing technical documents
[0005] Patent documents
[0006] Patent Document 1: Japanese Patent No. 3794753 Utility Model Content
[0007] The problem to be solved by utility models
[0008] In view of the above-mentioned related technologies, the inventors of this utility model have considered the following solutions.
[0009] In other words, in practical applications, a compact layout is desired, which makes it difficult to install rolling limiters. In contrast, reciprocating hydraulic cylinders can accommodate smaller spaces, but the sliding parts experience greater wear, making maintenance and repair more complicated than usual.
[0010] This invention was proposed in view of the above-mentioned problems. One of its objectives is to suppress the variation (e.g., sinking) relative to reciprocating drive in a drive device using a hydraulic cylinder, while also compactly arranging the space without increasing the complexity of the mechanical device.
[0011] Methods for solving problems
[0012] (1) The driving device of this utility model uses a hydraulic cylinder mounted on a steel frame to reciprocate to drive an object connected by a hydraulic cylinder rod connecting part. The driving device includes: a track support plate, which is disposed between the hydraulic cylinder rod connecting part and the steel frame and is fixed to the steel frame by a plurality of first fixing mechanisms; a track, which is fixed to the upper surface of the track support plate by a second fixing mechanism; a base, which is disposed on the lower surface of the hydraulic cylinder rod connecting part; and a sliding plate, which is fixed to the lower surface of the base by a third fixing mechanism and engages with the track in a slidable manner.
[0013] (2) Alternatively, in the driving device of this utility model, the first fixing mechanism may include a bolt and a first nut, a plurality of through holes are provided on the track support plate, the bolt is inserted into the through holes, and a first nut is installed at each end of the bolt.
[0014] (3) Alternatively, in the drive device of this utility model, the second fixing mechanism may include two countersunk bolts and two second nuts, a pair of countersunk holes are provided on the track, a pair of first threaded holes corresponding to the countersunk holes are provided on the track support plate, the countersunk bolts are inserted into the countersunk holes and screwed into the first threaded holes, and the second nuts are screwed into the countersunk bolts.
[0015] (4) Alternatively, in the drive device of this utility model, the minimum distance between the pair of countersunk holes may be greater than the reciprocating stroke of the hydraulic cylinder.
[0016] (5) Alternatively, in the driving device of this utility model, the third fixing mechanism may include two hexagon socket bolts, a pair of countersunk holes are provided on the lower surface of the sliding plate, and a pair of second threaded holes corresponding to the countersunk holes are provided on the lower surface of the base. The hexagon socket bolts are inserted into the countersunk holes and screwed into the second threaded holes.
[0017] (6) Alternatively, in the driving device of this utility model, the minimum distance between the pair of countersinking holes may be greater than the width of the track.
[0018] (7) Alternatively, in the driving device of this utility model, a gap may be provided between the sliding plate and the track.
[0019] (8) Alternatively, in the drive device of this utility model, the sliding plate and the track may be formed of wear-resistant material.
[0020] Utility Model Effect
[0021] According to this invention, the space can be compactly arranged without adding complex mechanical devices, and the variation (e.g., sinking) relative to the reciprocating drive can be suppressed. Attached Figure Description
[0022] Figure 1 This is a structural diagram showing the structure of the drive device in this embodiment.
[0023] Figure 2 It is indicated by omitting the hydraulic cylinder and connecting parts. Figure 1 The diagram shows the structure of the drive device.
[0024] Figure 3 yes Figure 1 The diagram shows the structure of the first fixing mechanism.
[0025] Figure 4 yes Figure 2 The diagram shows the structure of the second fixing mechanism.
[0026] Figure 5 yes Figure 1 The diagram shows the structure of the third fixing mechanism.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1 hydraulic cylinder
[0029] 1A drive unit
[0030] 2 Hydraulic cylinder rod connection part
[0031] 3 steel frames
[0032] 4 track support plates
[0033] 5 tracks
[0034] 6 bases
[0035] 7 Sliding Plate
[0036] 8 bolts (first fixing mechanism)
[0037] 9. First nut (first fixing mechanism)
[0038] 10 through holes
[0039] 11 Countersunk Bolt (Second Fixing Mechanism)
[0040] 12 Second nut (second fixing mechanism)
[0041] 13 countersunk holes
[0042] 14 First threaded hole
[0043] 15mm hex socket head cap screw (third fixing mechanism)
[0044] 16 countersunk holes
[0045] 17 Second threaded hole
[0046] 18 gaps. Detailed Implementation
[0047] The following is for reference Figures 1-5 This description describes a driving device as an embodiment of the present invention. It should be noted that the embodiments shown below are merely illustrative and are not intended to exclude various modifications or applications of techniques not explicitly shown. The structures shown in the embodiments can be implemented through various modifications without departing from their spirit. Furthermore, the structures shown in the embodiments, in addition to the essential components of the present invention, can be selected or appropriately combined as needed.
[0048] [1. Structure]
[0049] The drive device 1A in this embodiment is applied, for example, to a grate furnace (incinerator) used for waste incineration. Specifically, the drive device 1A is positioned obliquely below the grate bars outside the grate furnace and reciprocates to drive the grate bars. It should be noted that... Figure 1 This is a side view of the drive unit 1A, omitting the incinerator and part of the drive unit 1A.
[0050] like Figure 1 As shown, the drive device 1A includes a hydraulic cylinder 1 mounted on a steel frame 3. A grate bar (not shown) is connected to the hydraulic cylinder rod connecting part 2 of the hydraulic cylinder 1 via a connecting rod 2A. The hydraulic cylinder 1 reciprocates the grate bar (not shown) (see reference). Figure 1 (The hollow arrow in the middle).
[0051] like Figure 1 As shown, in the drive device 1A of this embodiment, the structure for suppressing the movement of the hydraulic cylinder 1 relative to reciprocating drive includes a track support plate 4, a track 5, a base 6, a sliding plate 7, a bolt 8 (first fixing mechanism), a first nut 9 (first fixing mechanism), a second fixing mechanism, and a third fixing mechanism. In this embodiment, these elements 4 to 9 are arranged at the rear end away from the front end of the grate plate on which the weight (object) is set, between the hydraulic cylinder rod connecting part 2 of the hydraulic cylinder 1 and the steel frame 3, thus facilitating regular maintenance and repair.
[0052] The track support plate 4 is positioned between the hydraulic cylinder rod connection 2 and the steel frame 3, and is fixed to the steel frame 3 via multiple first fixing mechanisms 8 and 9. Figure 2 As shown, four first fixing mechanisms 8 and 9 are provided, and the four first fixing mechanisms 8 and 9 are respectively fixed to the steel frame 3, so that the track support plate 4 can be reliably installed.
[0053] Specifically, such as Figure 2 and Figure 3 As shown, the first fixing mechanism includes a bolt 8 and a first nut 9. Here, the track support plate 4, which is roughly rectangular in top view, has four through holes 10. Figure 2 As shown by the dashed line, four through holes 10 are similarly arranged at the corners around the track support plate 4, and the bolts 8 cooperate with the through holes 10. That is, the bolts 8 are inserted into the through holes 10, and one end of the bolts 8 inserted into the through holes 10 is fixed to the steel frame 3, for example by circular welding, and the bolts 8 are firmly installed on the steel frame 3.
[0054] Two first nuts 9 are installed relative to each bolt 8. Specifically, the upper and lower ends of each bolt 8, which is inserted into each through hole 10, protrude above and below the track support plate 4, respectively. A first nut 9 is installed (screwed) at each end of each bolt 8 protruding above and below the track support plate 4. That is, by screwing the two first nuts 9 into the two ends of each bolt 8, both first nuts 9 are simultaneously fixed to the track support plate 4. Therefore, not only can the track support plate 4 be securely installed, but it can also effectively withstand the load applied to the track support plate 4.
[0055] Moreover, refer to Figure 2 and Figure 4 In this embodiment, the track 5 is securely mounted on the upper surface of the track support plate 4 (i.e., the surface of the track support plate 4 away from the steel frame 3) via a second fixing mechanism. The track 5 is formed of a wear-resistant material. Because the wear-resistant material has excellent wear resistance, the service life of the track 5 can be increased.
[0056] like Figure 2 and Figure 4 As shown, a pair of second fixing mechanisms separated along the extension direction are provided on the track 5. At the two locations where the pair of second fixing mechanisms are provided, the track 5 is fixed to the center of the track support plate 4 in the width direction.
[0057] Specifically, the second fixing mechanism includes a countersunk bolt 11 and a second nut 12. A pair of countersunk holes 13, symmetrically positioned on the track 5, engage with the countersunk bolt 11. The countersunk bolt 11 passes through the track 5 along the countersunk holes 13. A pair of first threaded holes 14, symmetrically positioned corresponding to the countersunk holes 13, are arranged on the track support plate 4. The countersunk bolt 11 is screwed into the first threaded holes 14, and the countersunk bolt 11 is screwed into the track support plate 4 along the first threaded holes 14.
[0058] Furthermore, the lower end of each countersunk bolt 11 protrudes from the lower surface of the track support plate 4, so a second nut 12 is installed at the lower end of the countersunk bolt 11. By installing the second nut 12 onto the countersunk bolt 11, the track 5 is securely installed onto the track support plate 4. By unscrewing the second nut 12 from the countersunk bolt 11, and then unscrewing the countersunk bolt 11 from the first threaded hole 14, the track 5 can be easily removed from the track support plate 4, allowing for easy replacement of the track 5.
[0059] In addition, such as Figure 1 and Figure 5 As shown, in this embodiment, a base 6 is provided (e.g., welded) on the lower surface of the hydraulic cylinder rod connection portion 2 of the hydraulic cylinder 1. A sliding plate 7 is provided on the lower surface side of the base 6 via a third fixing mechanism. That is, the sliding plate 7 is provided on the side offset from the hydraulic cylinder 1 via the third fixing mechanism. The sliding plate 7 is a plate member that can slidably engage with the track 5. Specifically, the sliding plate 7 is arranged above the track 5 in an orientation opposite to the upper surface of the track 5. The sliding plate 7 is formed of a wear-resistant material. The wear-resistant material has good wear resistance and can improve the service life of the sliding plate 7.
[0060] It should be noted that the sliding plate 7 is not limited to wear-resistant materials; it can also be formed of a self-lubricating material (a so-called oil-free plate). In this case, the lifespan of the sliding plate 7 can also be improved. That is, both the track 5 and the sliding plate 7 can be formed of wear-resistant materials, or at least one of the track 5 and the sliding plate 7 can be formed of wear-resistant materials.
[0061] Two third fixing mechanisms are provided separately in the width direction, and the two parts of the two third fixing mechanisms, which are separated in the width direction, securely install the sliding plate 7 onto the base 6.
[0062] Specifically, the third fixing mechanism includes hexagon socket head cap screws 15. Two hexagon socket head cap screws 15 are provided for each third fixing mechanism. On the lower surface of the sliding plate 7, a pair of countersunk holes 16 are arranged symmetrically with respect to the third fixing mechanism. The hexagon socket head cap screws 15 are inserted into the countersunk holes 16 such that they pass through the sliding plate 7 along the countersunk holes 16. Additionally, on the base 6, a pair of second threaded holes 17 are arranged symmetrically with respect to the countersunk holes 16, and the second threaded holes 17 engage with the hexagon socket head cap screws 15.
[0063] The sliding plate 7 can be easily installed on the base 6 by screwing the socket head cap screw 15 into the countersunk hole 16 and the second threaded hole 17. If the socket head cap screw 15 is rotated in the opposite direction to when it is installed from the second threaded hole 17, the sliding plate 7 can be removed from the base 6, thus making the replacement of the sliding plate 7 easy.
[0064] When the hydraulic cylinder 1 is activated, the hydraulic cylinder rod connecting part 2 of the hydraulic cylinder 1 reciprocates, and the sliding plate 7 reciprocates (slides) along the upper surface of the track 5. This not only eliminates the need for installation space but also eliminates the need for an additional sliding support mechanism. Furthermore, it prevents the hydraulic cylinder 1 and the hydraulic cylinder rod connecting part 2 from shifting relative to the reciprocating drive during operation (e.g., sinking), effectively preventing the hydraulic cylinder 1 from shifting (e.g., sinking).
[0065] In addition, such as Figure 3 and Figure 4 As shown, in this embodiment, the sliding plate 7 and the track 5 cooperate with each other. Specifically, a gap 18 is provided between the sliding plate 7 and the track 5. When the hydraulic cylinder 1 has no tendency to sink, this gap 18 prevents contact between the track 5 and the sliding plate 7. The gap 18 can be determined according to the actual usage conditions. More specifically, the distance of the gap 18 can be set to be smaller when the sinking is severe during operation, and larger when the sinking is relatively slight.
[0066] Furthermore, to adjust the gap 18 between the sliding plate 7 and the track 5, the two first nuts 9 of each bolt 8 of the track support plate 4 can be rotated. This allows for effective adjustment of the height of the track support plate 4 and the distance of the gap 18 between the track 5 and the sliding plate 7. As a result, the track 5 can be set to always be parallel to the movement of the sliding plate 7, and can be immediately stopped during operation if the hydraulic cylinder 1 tends to sink. Therefore, tilting of the hydraulic cylinder 1 can be effectively prevented.
[0067] Preferably, in this embodiment, the length of the track 5 needs to be determined based on the reciprocating stroke of the hydraulic cylinder 1. The width of the sliding plate 7 needs to be determined based on the width of the track 5. Specifically, when manufacturing the track 5 and the sliding plate 7, the minimum distance between a pair of countersunk holes 13 in the track 5 is set to be greater than the reciprocating stroke of the hydraulic cylinder 1. In addition, the minimum distance between a pair of countersunk holes 16 in the sliding plate 7 is set to be greater than the width of the track 5. As a result, the coordination between the track 5 and the sliding plate 7 can be made more accurate, and the movement of the hydraulic cylinder 1 relative to the reciprocating drive can be prevented more effectively.
[0068] [2. Effects]
[0069] (1) The drive device 1A of this utility model is a drive device 1A that uses a hydraulic cylinder 1 mounted on a steel frame 3 to reciprocate to drive an object connected by a hydraulic cylinder rod connecting part 2. It includes: a track support plate 4, which is disposed between the hydraulic cylinder rod connecting part 2 of the hydraulic cylinder 1 and the steel frame 3, and is fixed to the steel frame 3 by a plurality of first fixing mechanisms; a track 5, which is fixed to the upper surface of the track support plate 4 by a second fixing mechanism; a base 6, which is disposed on the lower surface of the hydraulic cylinder rod connecting part 2; and a sliding plate 7, which is fixed to the lower surface of the base 6 by a third fixing mechanism and engages with the track 5 in a slidable manner.
[0070] (2) In the drive device 1A of this utility model, the first fixing mechanism includes a bolt 8 and a first nut 9. Multiple through holes 10 are provided on the track support plate 4. The bolt 8 is inserted into the through holes 10, and a first nut 9 is installed at each end of the bolt 8.
[0071] (3) In addition, in the drive device 1A of this utility model, the second fixing mechanism includes two countersunk bolts 11 and two second nuts 12. A pair of countersunk holes 13 are provided on the track 5, and a pair of first threaded holes 14 corresponding to the countersunk holes 13 are provided on the track support plate 4. The countersunk bolts 11 are inserted into the countersunk holes 13 and are screwed into the first threaded holes 14, and the second nuts 12 are screwed into the countersunk bolts 11.
[0072] (4) In addition, in the drive device 1A of this utility model, the shortest distance between a pair of countersunk holes 13 is greater than the reciprocating stroke of the hydraulic cylinder 1.
[0073] (5) In addition, in the drive device 1A of this utility model, the third fixing mechanism includes two hexagon socket bolts 15, a pair of countersunk holes 16 are provided on the lower surface of the sliding plate 7, and a pair of second threaded holes 17 corresponding to the countersunk holes 16 are provided on the lower surface of the base 6. The hexagon socket bolts 15 are inserted into the countersunk holes 16 and screwed into the second threaded holes 17.
[0074] (6) In addition, in the drive device 1A of this utility model, the minimum distance between the two countersunk holes 16 is greater than the width of the track 5.
[0075] (7) In addition, in the drive device 1A of this utility model, a gap 18 is provided between the sliding plate 7 and the track 5.
[0076] (8) Moreover, in the drive device 1A of this utility model, the sliding plate 7 and the track 5 are formed of wear-resistant material.
[0077] Therefore, compared with the prior art, the beneficial effects of this application are as follows:
[0078] The drive unit 1A, by having a track support plate 4, a first fixing mechanism, a second fixing mechanism, a track 5, a base 6, a third fixing mechanism, and a sliding plate 7, can solve the variation (e.g., sinking) of the hydraulic cylinder 1 relative to the reciprocating drive, without adding complex mechanical parts, and can make the layout compact, effectively improving the working stability of the drive unit 1A.
[0079] Furthermore, the drive unit 1A is easily installed through the fixing structure of the first fixing mechanism, the second fixing mechanism, and the third fixing mechanism. After installation, the track 5 and the sliding plate 7 are easy to replace, and subsequent maintenance and repair work becomes very easy.
[0080] As described above, the drive unit 1A can solve the problem of variation (e.g., sinking) relative to reciprocating drive caused by excessive resistance of the hydraulic cylinder 1 and the hydraulic cylinder rod connection 2, while also enabling a compact layout without adding complex mechanical parts.
Claims
1. A driving device that uses a hydraulic cylinder mounted on a steel frame to reciprocate an object connected via a hydraulic cylinder rod connecting part, characterized in that, The drive device includes: A track support plate is disposed between the hydraulic cylinder rod connection and the steel frame, and is fixed to the steel frame by a plurality of first fixing mechanisms; The track is fixed to the upper surface of the track support plate via a second fixing mechanism; A base, which is disposed on the lower surface of the hydraulic cylinder rod connection; and The sliding plate is fixed to the lower surface of the base via a third fixing mechanism and engages with the track in a slidable manner.
2. The driving device according to claim 1, characterized in that, The first fixing mechanism includes a bolt and a first nut. The track support plate is provided with multiple through holes. The bolt is inserted through the through hole, and a first nut is installed at each end of the bolt.
3. The driving device according to claim 1, characterized in that, The second fixing mechanism includes two countersunk bolts and two second nuts. A pair of countersunk holes are provided in the track. The track support plate is provided with a pair of first threaded holes corresponding to the countersunk holes. The countersunk bolt is inserted into the countersunk hole and screwed into the first threaded hole, and the second nut is screwed into the countersunk bolt.
4. The driving device according to claim 3, characterized in that, The minimum distance between the pair of countersunk holes is greater than the reciprocating stroke of the hydraulic cylinder.
5. The driving device according to claim 1, characterized in that, The third fixing mechanism includes two internal hex bolts. A pair of countersinking holes are provided on the lower surface of the sliding plate. A pair of second threaded holes corresponding to the countersinking hole are provided on the lower surface of the base. The internal hex bolt is inserted into the countersunk hole and screwed into the second threaded hole.
6. The driving device according to claim 5, characterized in that, The minimum distance between the pair of countersunk holes is greater than the width of the track.
7. The driving device according to claim 1, characterized in that, A gap is provided between the sliding plate and the track.
8. The driving device according to claim 7, characterized in that, The sliding plate and the track are made of wear-resistant material.