Hydraulic stacking crown block clamp mechanism

Abstract

The invention belongs to the technical field of stacking crown block clamps, and discloses a hydraulic stacking crown block clamp mechanism which comprises a supporting frame, hydraulic driving structures are arranged at the two ends of the lower surface of the supporting frame, the number of the hydraulic driving structures is two, and each hydraulic driving structure comprises a fixing base, a dustproof sleeve, a connecting plate and a connecting rod. The two fixing seats are fixedly connected to the two ends of the lower surface of the supporting frame correspondingly. And the number of the interval adjusting structures is two. The adjusting seat and the fixing rod can be driven to translate in the connecting seat by rotating the screw rod, the stability of the adjusting seat during moving can be improved through the fixing rod, and the sliding sleeve can drive the fixing plate and the clamping structures to integrally and synchronously move during moving, so that the distance between the two clamping structures can be adjusted, and the working efficiency is improved. The design can effectively improve the stroke when the distance between the two clamping structures is adjusted.

Description

Technical Field

[0001] This invention belongs to the field of stacking crane clamp technology, specifically a hydraulic stacking crane clamp mechanism. Background Technology

[0002] Stacking overhead cranes are core handling equipment in carbon plants, equipped with specialized clamps to securely hold rectangular raw / cooked carbon blocks. Their core function is to efficiently and precisely achieve automatic gripping, vertical lifting, horizontal transport, and multi-layer stacking of carbon blocks between the packing and unpacking station, roasting furnace, cooling zone, or storage area. This greatly improves production efficiency, protects the integrity of the carbon blocks, and reduces the risks associated with manual operation.

[0003] Due to the wide variety of charcoal blocks, their sizes vary. Most existing clamps are designed with linkages, which makes it difficult to adjust the clamp spacing during use. This limits the applicability of the clamps and may not be able to accommodate charcoal blocks of different sizes. Consequently, some charcoal blocks may not be able to be stably clamped or may be forced into clamping, which could increase the risk of blocks falling off or breaking. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic stacking crane clamping mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic stacking crane clamp mechanism, comprising a support frame, wherein both ends of the lower surface of the support frame are provided with hydraulic drive structures, and two sets of hydraulic drive structures are provided, wherein the hydraulic drive structure includes a fixed seat, a dust cover, a connecting plate and a connecting rod, and the two sets of fixed seats are respectively fixedly connected to both ends of the lower surface of the support frame. The spacing adjustment structure has two sets, and the spacing adjustment structure includes a connecting seat, a fixing plate, a sliding sleeve and an adjusting seat. The upper surfaces of the two sets of connecting seats are respectively fixedly connected to the middle position of the lower surface of the two sets of connecting plates. The clamping structure has two sets and includes a mounting base, a mounting groove, a pressure sensor, a limiting plate and a T-shaped block. The surfaces of the two sets of mounting bases are respectively fixedly connected to the surfaces of the two sets of fixing plates.

[0006] Preferably, an optical axis is fixedly connected to the inner surface of the fixing base, and a bushing is slidably sleeved on the outer surface of the optical axis. Dustproof sleeves are fixedly connected to the outer surfaces of both ends of the bushing, and the two ends of the dustproof sleeves are fixedly connected to the inner surfaces of both sides of the fixing base.

[0007] Preferably, the connecting plate is fixedly connected to the lower surface of the bushing, the connecting rod is fixedly connected to both sides of the lower surface of the connecting plate, and a hydraulic cylinder is installed at the middle position of the upper surface of the connecting plate, and one end of the push rod inside the hydraulic cylinder is fixedly connected to the inner surface of one side of the fixed seat.

[0008] Preferably, a connecting sleeve is slidably fitted onto the outer surface of the connecting rod, and the fixing plate is fixedly connected to the lower surface of the connecting sleeve.

[0009] Preferably, the internal bearing of the connecting seat is connected to a lead screw, and the outer surface of the lead screw is threadedly connected to an adjusting seat. A fixing rod is fixedly connected to the outer surfaces of both sides of the adjusting seat. The fixing rod is slidably connected to the inside of the outer surfaces of both sides of the connecting seat, and a sliding sleeve is fixedly connected to the outer surfaces of both ends of the fixing rod.

[0010] Preferably, the sliding sleeve is slidably fitted onto the outer surface of the connecting seat, and the lower end of the sliding sleeve is fixedly connected to the upper surface of the fixing plate.

[0011] Preferably, the mounting groove is formed inside the other side surface of the mounting base, the pressure sensor is mounted on the lower surface of the mounting base, and a threaded seat is fixedly connected to one end of the upper surface of the mounting base, while a hinged seat is fixedly connected to one end of the lower surface of the mounting base.

[0012] Preferably, the T-shaped clip engages inside the mounting groove, a clamping plate is fixedly connected to one side of the T-shaped clip, and the surface of one side of the clamping plate is in contact with the surface of the other side of the mounting base, and a buffer pad is fixedly connected to the surface of the other side of the clamping plate.

[0013] Preferably, the hinged seat is internally hinged to a limiting plate, and one side surface of the limiting plate is in contact with the surface of the mounting seat and one end of the T-shaped block. The upper end of the limiting plate is fixedly connected to a limiting seat, and the outer surface of the limiting seat is in contact with the surface of one side of the threaded seat. A fixing screw is inserted inside the limiting seat, and one end of the fixing screw is threaded to the inside of the threaded seat. A fixing nut is threaded to the outer surface of one end of the fixing screw, and the outer surface of the fixing nut is in contact with the surface of the other side of the threaded seat.

[0014] The beneficial effects of this invention are as follows: 1. This invention activates two sets of hydraulic cylinders, whose internal push rods can drive the two sets of hydraulic cylinders, connecting plates, and bushings to move synchronously. The two sets of dustproof sleeves can prevent dust from adhering to the outer surfaces of the two optical shafts, thus avoiding dust from affecting the accuracy of the two sets of bushings sliding on the outer surfaces of the two optical shafts. This design can use two sets of hydraulic drive structures to control two sets of clamping structures to clamp the carbon block, and can also expand the stroke of the two sets of clamping structures to a certain extent.

[0015] 2. This invention enables the adjusting seat and the fixed rod to translate within the connecting seat by rotating the lead screw. The fixed rod improves the stability of the adjusting seat during movement, and the sliding sleeve can drive the fixed plate and the clamping structure to move synchronously when moving, thereby adjusting the distance between the two sets of clamping structures. This design can effectively increase the stroke when adjusting the distance between the two sets of clamping structures.

[0016] 3. This invention uses a limiting plate to fix the T-shaped block in the mounting groove, preventing the clamping plate and the T-shaped block from moving during clamping. Rotating the fixing nut disengages it from the outer surface of one end of the fixing screw, and then rotating the fixing screw disengages it from the inside of the threaded seat. Pulling the limiting plate disengages it from the surface of the mounting seat and one end of the T-shaped block. At this point, pulling the clamping plate will move the T-shaped block out of the mounting groove. This design allows the operator to easily install and remove the clamping plate, enabling the device to be equipped with clamping plates and buffer pads of different widths according to the size of the carbon block.

[0017] 4. This invention uses two sets of pressure sensors in conjunction with an external controller to detect the pressure generated during clamping, which is then converted into an electrical signal and transmitted to the controller. After receiving the signal from the pressure sensor, the controller can control the two sets of hydraulic cylinders to close, thus avoiding continuous pressure from the two sets of hydraulic cylinders and minimizing the risk of carbon block breakage during clamping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial top view of the structure of the present invention; Figure 3 This is a partial exploded view of the structure of the present invention; Figure 4 This is a partial schematic diagram of the structure of the present invention; Figure 5 This is a partial exploded view of the structure of the present invention; Figure 6 This is a partial schematic diagram of the spacing adjustment structure of the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the spacing adjustment structure of the present invention; Figure 8 This is an exploded view of the clamping structure of the present invention; Figure 9 This is a partial schematic diagram of the clamping structure of the present invention.

[0019] In the diagram: 1. Support frame; 2. Hydraulic drive structure; 21. Fixed seat; 22. Optical axis; 23. Bushing; 24. Dust cover; 25. Connecting plate; 26. Connecting rod; 27. Hydraulic cylinder; 3. Spacing adjustment structure; 31. Connecting seat; 32. Fixed plate; 33. Connecting sleeve; 34. Lead screw; 35. Sliding sleeve; 36. Fixed rod; 37. Adjusting seat; 4. Clamping structure; 41. Mounting seat; 42. Mounting groove; 43. Pressure sensor; 44. Threaded seat; 45. Hinge seat; 46. Clamping plate; 47. Buffer pad; 48. T-shaped block; 49. Limiting plate; 410. Limiting seat; 411. Fixed screw; 412. Fixed nut. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 9 As shown, this embodiment of the invention provides a hydraulic stacking crane clamp mechanism, including a support frame 1. Both ends of the lower surface of the support frame 1 are provided with hydraulic drive structures 2, and there are two sets of hydraulic drive structures 2. The hydraulic drive structure 2 includes a fixed seat 21, a dust cover 24, a connecting plate 25 and a connecting rod 26. The two sets of fixed seats 21 are respectively fixedly connected to both ends of the lower surface of the support frame 1. The spacing adjustment structure 3 has two sets, and the spacing adjustment structure 3 includes a connecting seat 31, a fixing plate 32, a sliding sleeve 35 and an adjusting seat 37. The upper surfaces of the two sets of connecting seats 31 are respectively fixedly connected to the middle position of the lower surface of the two sets of connecting plates 25. The clamping structure 4 has two sets and includes a mounting base 41, a mounting groove 42, a pressure sensor 43, a limiting plate 49 and a T-shaped block 48. The surfaces of one side of the two sets of mounting bases 41 are respectively fixedly connected to the surfaces of one side of the two sets of fixing plates 32.

[0022] The support frame 1 can be connected to the overhead crane, which can control the entire device to move longitudinally. Two sets of hydraulic drive structures 2 can drive two sets of clamping structures 4 to move closer or further apart, so that the carbon block can be clamped by the two sets of clamping structures 4, and the stroke of the two sets of clamping structures 4 can be expanded to a certain extent. The distance between the two sets of clamping structures 4 can be adjusted by two sets of distance adjustment structures 3.

[0023] like Figure 2As shown, an optical axis 22 is fixedly connected to the inner surface of the fixed base 21, and a bushing 23 is slidably sleeved on the outer surface of the optical axis 22. Dustproof sleeves 24 are fixedly connected to the outer surfaces of both ends of the bushing 23, and the two ends of the dustproof sleeves 24 are fixedly connected to the inner surfaces of both sides of the fixed base 21.

[0024] The dust cover 24 is made of synthetic rubber. The bushing 23 can slide on the outer surface of the optical axis 22. When the bushing 23 slides, it will cause the dust cover 24 to deform. The dust cover 24 can protect the outer surface of the optical axis 22 from dust and prevent dust and other impurities from adhering to the outer surface of the optical axis 22. This can effectively improve the accuracy of the bushing 23 sliding on the outer surface of the optical axis 22. The dust cover 24 has a built-in metal skeleton to enhance its fatigue resistance. It needs to be replaced in time according to the wear of the two sets of dust covers 24.

[0025] like Figure 2 and Figure 3 As shown, the connecting plate 25 is fixedly connected to the lower surface of the bushing 23, the connecting rod 26 is fixedly connected to both sides of the lower surface of the connecting plate 25, and a hydraulic cylinder 27 is installed in the middle position of the upper surface of the connecting plate 25. One end of the push rod inside the hydraulic cylinder 27 is fixedly connected to the inner surface of one side of the fixed seat 21.

[0026] The hydraulic cylinder 27 can extend and retract its internal push rod, thereby driving the hydraulic cylinder 27, bushing 23, connecting plate 25 and connecting rod 26 to move synchronously. The bushing 23 can improve the stability during movement. When the connecting plate 25 moves, it can drive the spacing adjustment structure 3 and the clamping structure 4 to move synchronously as a whole. This allows the spacing between the two clamping structures 4 to be adjusted according to the specific size of the carbon block. The two sets of hydraulic cylinders 27 are connected through an external PLC controller to maintain the synchronization of the hydraulic cylinders 27 during use.

[0027] like Figure 4 As shown, a connecting sleeve 33 is slidably sleeved on the outer surface of the connecting rod 26, and a fixing plate 32 is fixedly connected to the lower surface of the connecting sleeve 33.

[0028] The connecting sleeve 33 can slide on the outer surface of the connecting rod 26, and when the connecting sleeve 33 slides, it can drive the fixing plate 32 to move synchronously, and when the fixing plate 32 moves, it can drive the clamping structure 4 to move synchronously as a whole.

[0029] like Figure 5 and Figure 6As shown, the internal bearing of the connecting seat 31 is connected to the lead screw 34, and the outer surface of the lead screw 34 is threadedly connected to the adjusting seat 37. The outer surfaces of both sides of the adjusting seat 37 are fixedly connected to the fixing rod 36. The fixing rod 36 is slidably connected to the inside of the outer surfaces of both sides of the connecting seat 31. The outer surfaces of both ends of the fixing rod 36 are fixedly connected to the sliding sleeve 35.

[0030] One end of the lead screw 34 is equipped with a handwheel, which makes it easier for the operator to rotate the lead screw 34. The lead screw 34 is connected to the bearing of the connecting seat 31, which can prevent the lead screw 34 from shaking or swaying when rotating. When the lead screw 34 rotates, it can drive the adjusting seat 37 and the fixed rod 36 to move inside the connecting seat 31. The fixed rod 36 can improve the stability of the adjusting seat 37 when moving.

[0031] like Figure 5 and Figure 6 As shown, the sliding sleeve 35 is slidably sleeved on the outer surface of the connecting seat 31, and the lower end of the sliding sleeve 35 is fixedly connected to the upper surface of the fixing plate 32.

[0032] When the adjusting seat 37 and the fixed rod 36 move, they can drive the sliding sleeve 35 to move synchronously. The sliding sleeve 35 and the connecting seat 31 can improve the stability of the sliding sleeve 35 when it moves. When the sliding sleeve 35 moves, it can drive the fixed plate 32 and the clamping structure 4 to move synchronously as a whole.

[0033] like Figure 8 and Figure 9 As shown, the mounting groove 42 is opened inside the other side surface of the mounting base 41, the pressure sensor 43 is mounted on the lower surface of the mounting base 41, and a threaded seat 44 is fixedly connected to one end of the upper surface of the mounting base 41, and a hinge seat 45 is fixedly connected to one end of the lower surface of the mounting base 41.

[0034] The external controller can link the pressure sensor 43 and the hydraulic cylinder 27. The pressure sensor 43 can detect the pressure when clamping the carbon block and convert it into an electrical signal, which is then transmitted to the controller. After receiving the signal from the pressure sensor 43, the controller can control the two sets of hydraulic cylinders 27 to close, thus preventing the two sets of hydraulic cylinders 27 from continuously applying pressure.

[0035] like Figure 8 and Figure 9 As shown, the T-shaped locking block 48 is engaged inside the mounting groove 42. A clamping plate 46 is fixedly connected to one side of the T-shaped locking block 48, and the surface of one side of the clamping plate 46 is in contact with the surface of the other side of the mounting base 41. A buffer pad 47 is fixedly connected to the surface of the other side of the clamping plate 46.

[0036] The installation groove 42 and T-shaped locking blocks 48 allow the operator to easily install or remove the clamping plate 46 and the buffer pad 47. This allows the device to be fitted with clamping plates 46 and buffer pads 47 of different widths according to the size of the carbon block. The buffer pad 47 is made of polyurethane and has embedded glass fiber, which effectively improves the overall strength of the buffer pad 47. At the same time, the buffer pad 47 also has good elasticity, which can reduce the pressure on the carbon block during clamping. Furthermore, the engagement of the two sets of T-shaped locking blocks 48 with the installation groove 42 can improve the stability of the connection between the clamping plate 46 and the mounting base 41, and can support the weight of the carbon block.

[0037] like Figure 8 and Figure 9 As shown, the hinge seat 45 is internally hinged to a limiting plate 49, and one side of the limiting plate 49 is in contact with the surface of the mounting base 41 and one end of the T-shaped block 48. The upper end of the limiting plate 49 is fixedly connected to a limiting seat 410, and the outer surface of the limiting seat 410 is in contact with one side of the threaded seat 44. A fixing screw 411 is inserted inside the limiting seat 410, and one end of the fixing screw 411 is threaded to the inside of the threaded seat 44. A fixing nut 412 is threaded to the outer surface of one end of the fixing screw 411, and the outer surface of the fixing nut 412 is in contact with the other side of the threaded seat 44.

[0038] The fixing screw 411 and fixing nut 412 can fix the position of the limiting seat 410 and the limiting plate 49. When the surface of the limiting plate 49 on one side is in contact with the surface of the mounting seat 41 and the surface of the T-shaped block 48 at one end, the position of the T-shaped block 48 can be fixed to prevent the T-shaped block 48 from moving inside the mounting groove 42. A spring washer is added between the fixing screw 411 and the fixing nut 412 to prevent loosening.

[0039] Working principle and usage process: First, rotate the two sets of lead screws 34 to drive the two sets of hydraulic cylinders 27 and fixed rods 36 to move. Then, drive the two sets of fixed plates 32 and clamping structures 4 to move synchronously. At this time, the two sets of clamping structures 4 can be adjusted to a suitable distance. Then, the entire device is moved to directly above the charcoal block by the overhead crane. Then, the overhead crane control device is lowered to a suitable height. Then, the two sets of hydraulic cylinders 27 are activated to push the two sets of connecting plates 25 and the two sets of distance adjustment structures 3 and clamping structures 4 to move synchronously. At this time, the surfaces of the two sets of buffer pads 47 and pressure sensors 43 on opposite sides are in contact with the surface of the charcoal block. After the pressure reaches the set value, the two sets of pressure sensors 43 will control the two sets of hydraulic cylinders 27 to close. At this time, the two sets of hydraulic cylinders 27 will stop applying pressure. Then, the overhead crane control device carries the charcoal block to a suitable position. The two sets of hydraulic cylinders 27 control the two sets of clamping structures 4 to move away from each other, thus completing the stacking of the charcoal block.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic stacking crane clamp mechanism, comprising a support frame (1), characterized in that: Hydraulic drive structures (2) are provided at both ends of the lower surface of the support frame (1), and there are two sets of hydraulic drive structures (2). The hydraulic drive structure (2) includes a fixed seat (21), a dust cover (24), a connecting plate (25) and a connecting rod (26). The two sets of fixed seats (21) are respectively fixedly connected to both ends of the lower surface of the support frame (1). The spacing adjustment structure (3) is provided in two sets, and the spacing adjustment structure (3) includes a connecting seat (31), a fixing plate (32), a sliding sleeve (35) and an adjustment seat (37). The upper surfaces of the two sets of connecting seats (31) are respectively fixedly connected to the middle position of the lower surface of the two sets of connecting plates (25). The clamping structure (4) is provided in two sets, and the clamping structure (4) includes a mounting base (41), a mounting groove (42), a pressure sensor (43), a limiting plate (49) and a T-shaped card block (48). The surfaces of one side of the two sets of mounting bases (41) are respectively fixedly connected to the surfaces of one side of the two sets of fixing plates (32).

2. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The inner surface of the fixed base (21) is fixedly connected to the optical axis (22), and the outer surface of the optical axis (22) is slidably sleeved with the bushing (23). Dustproof sleeves (24) are fixedly connected to the outer surfaces of both ends of the bushing (23). The two ends of the dustproof sleeves (24) are fixedly connected to the inner surfaces of both sides of the fixed base (21).

3. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The connecting plate (25) is fixedly connected to the lower surface of the bushing (23), the connecting rod (26) is fixedly connected to both sides of the lower surface of the connecting plate (25), and a hydraulic cylinder (27) is installed in the middle position of the upper surface of the connecting plate (25), and one end of the push rod inside the hydraulic cylinder (27) is fixedly connected to the inner surface of one side of the fixed seat (21).

4. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The outer surface of the connecting rod (26) is slidably fitted with a connecting sleeve (33), and the fixing plate (32) is fixedly connected to the lower surface of the connecting sleeve (33).

5. A hydraulic stacking crane clamping mechanism according to claim 4, characterized in that: The connecting seat (31) has an internal bearing connected to a lead screw (34), and an adjusting seat (37) is threaded onto the outer surface of the lead screw (34). A fixing rod (36) is fixedly connected to the outer surfaces of both sides of the adjusting seat (37). The fixing rod (36) is slidably connected to the interior of the outer surfaces of both sides of the connecting seat (31). Sliding sleeves (35) are fixedly connected to the outer surfaces of both ends of the fixing rod (36).

6. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The sliding sleeve (35) is slidably sleeved on the outer surface of the connecting seat (31), and the lower end of the sliding sleeve (35) is fixedly connected to the upper surface of the fixing plate (32).

7. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The mounting groove (42) is opened inside the other side surface of the mounting base (41), the pressure sensor (43) is mounted on the lower surface of the mounting base (41), and a threaded seat (44) is fixedly connected to one end of the upper surface of the mounting base (41), and a hinged seat (45) is fixedly connected to one end of the lower surface of the mounting base (41).

8. The hydraulic stacking crane clamp mechanism according to claim 1, characterized in that: The T-shaped locking block (48) is engaged inside the mounting groove (42). A clamping plate (46) is fixedly connected to one side of the T-shaped locking block (48), and the surface of one side of the clamping plate (46) is in contact with the surface of the other side of the mounting base (41). A buffer pad (47) is fixedly connected to the surface of the other side of the clamping plate (46).

9. A hydraulic stacking crane clamp mechanism according to claim 7, characterized in that: The hinge seat (45) is internally hinged to a limiting plate (49), and one side of the limiting plate (49) is in contact with the surface of the mounting seat (41) and one end of the T-shaped block (48). The upper end of the limiting plate (49) is fixedly connected to a limiting seat (410), and the outer surface of the limiting seat (410) is in contact with one side of the threaded seat (44). A fixing screw (411) is inserted inside the limiting seat (410), and one end of the fixing screw (411) is threaded to the inside of the threaded seat (44). A fixing nut (412) is threaded to the outer surface of one end of the fixing screw (411), and the outer surface of the fixing nut (412) is in contact with the other side of the threaded seat (44).

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