Hinge arm kinematic pair of glue collecting lifting platform

Abstract

The utility model provides a glue collecting lifting platform hinge arm kinematic pair which comprises a pin shaft and two hinge arms, the two hinge arms are fixedly connected with corresponding steel sleeve seats, corresponding steel sleeves are installed in the two steel sleeve seats, the steel sleeves are detachably connected with the steel sleeve seats through fixing devices, the pin shaft is connected with the two steel sleeves in a sliding mode, and the hinge arms are fixedly connected with the pin shaft. The hinge arm kinematic pair comprises a hinge pin and a steel sleeve, the hinge pin is fixedly connected with the steel sleeve through a locking device, an oil channel is formed in the hinge pin, and the oil channel is communicated with an oil groove in the steel sleeve. The hinge arm kinematic pair can reduce the abrasion speed of the hinge pin and the steel sleeve, prolong the service life, reduce the production cost and is high in safety; meanwhile, the worn steel sleeve and the pin shaft can be replaced in time, the operation mode is simple, the replacement efficiency is greatly improved, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber mixing equipment, in particular to a hinge arm motion pair of a rubber collecting lifting platform. Background Art

[0002] In the rubber mixing production line, the automatic rubber swing device at the rubber sheet receiving station mainly consists of five parts: rubber table conveying platform, rubber collection lifting platform, rubber swing device, cutter device, and control system. Figure 1 As shown in the figure, the main function of the rubber collecting lifting platform is to transport the rubber material smoothly from a low place to a high place. During the movement of the rubber collecting lifting platform, the role of the hinged arm motion pair is crucial. It mainly undertakes the movement function of the rubber collecting lifting platform to ensure that the platform can complete the rubber collecting task smoothly and accurately.

[0003] The hinged arm kinematics consist of a pin and a steel sleeve, which work together to raise and lower the rubber collection platform. The platform often operates for over 20 hours per day, which accelerates wear on the pin and sleeve, shortening their service life and increasing production costs. This not only impacts normal production but also poses a safety hazard. Furthermore, worn pins and sleeves are difficult to remove, making replacement more difficult and inefficient. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and provide a hinge arm kinematic pair for a rubber collecting lifting platform.

[0005] To this end, the utility model provides a hinge arm motion pair of a rubber collection lifting platform, including a pin shaft and two hinge arms, the two hinge arms are fixedly connected with corresponding steel sleeve seats, the two steel sleeve seats are installed with corresponding steel sleeves, the steel sleeves are detachably connected to the steel sleeve seats through a fixing device, the pin shaft is slidably connected to the two steel sleeves, a locking device is provided on the pin shaft, the locking device is used to limit the position of the pin shaft, an oil channel is provided in the pin shaft, and the oil channel is connected to the oil groove on the steel sleeve.

[0006] Preferably, the oil tank includes a main oil tank and a connecting oil tank, the main oil tank is connected to the connecting oil tank, the connecting oil tank is used to transport the lubricating oil in the main oil tank to both ends of the steel sleeve, and the main oil tank is connected to the oil channel.

[0007] Preferably, the connecting oil groove is spiral-shaped.

[0008] Preferably, the fixing device includes a screw, a nut and a fixing block, the bottom of the screw is fixedly connected to the fixing block, the upper part of the screw is threadedly connected to the nut, and the fixing block passes through the through groove on the steel sleeve seat and the fixing groove on the steel sleeve in sequence to be rotated and fixed.

[0009] Preferably, the fixing groove is an inverted T-shaped structure.

[0010] Preferably, the locking device includes a locking washer and a locking nut, the locking washer is sleeved and mounted on the pin shaft, the locking nut is threadedly connected to the pin shaft, and the tongue on the locking washer is plugged into the slot on the locking nut.

[0011] Preferably, an oil passage hole is provided on a side of the pin away from the locking device, the oil passage hole is connected to the oil passage, and a plug is installed on the oil passage hole.

[0012] The beneficial effects of the present invention are as follows: the present invention provides a hinge arm motion pair for a glue collecting lifting platform, which has the following beneficial effects.

[0013] (1) The steel sleeve is detachably connected to the steel sleeve seat through a fixing device, and the pin is also detachably connected through a locking device, which facilitates timely replacement of worn steel sleeves and pins. The operation is simple, greatly improving the efficiency of replacement and saving time and effort.

[0014] ⑵ Lubricating oil is injected into the oil channel from the oil channel hole of the pin shaft. The lubricating oil enters the main oil groove of the steel sleeve through the oil channel. The lubricating oil in the main oil groove is transported to both ends of the steel sleeve through the spiral connecting oil groove, thereby ensuring sufficient lubrication between the pin shaft and the steel sleeve, reducing friction, shortening the wear rate of the pin shaft and the steel sleeve, increasing service life, and ensuring the smooth operation of the hinge arm motion pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the glue collecting lifting platform in the background technology section;

[0016] Figure 2 This is a schematic structural diagram of the hinged arm motion pair of the glue collecting lifting platform in this embodiment;

[0017] Figure 3 Schematic diagram of the structure of the fixing device in this embodiment;

[0018] Figure 4 Schematic diagram of the structure of the through slot in this embodiment;

[0019] Figure 5 Schematic diagram of the structure of the oil tank in this embodiment.

[0020] Markings in the figure: 1. Pin; 2. Hinge arm; 3. Steel sleeve seat; 4. Steel sleeve; 5. Fixing device; 51. Screw; 52. Nut; 53. Fixing block; 54. Knob; 6. Locking device; 61. Locking washer; 62. Locking nut; 63. Tab; 64. Slot; 7. Oil channel; 8. Oil tank; 81. Main oil tank; 82. Connecting oil tank; 83. End oil tank; 9. Through slot; 10. Fixing slot; 11. Oil channel hole; 12. Plug. DETAILED DESCRIPTION

[0021] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0022] Example:

[0023] like Figures 2 to 5 As shown, the utility model provides a hinge arm motion pair of a rubber collection lifting platform, including a pin shaft 1 and two hinge arms 2, the two hinge arms 2 are fixedly connected with corresponding steel sleeve seats 3, the two steel sleeve seats 3 are installed with corresponding steel sleeves 4, the steel sleeves 4 are detachably connected to the steel sleeve seats 3 through a fixing device 5, the pin shaft 1 is slidably connected to the two steel sleeves 4, a locking device 6 is provided on the pin shaft 1, the locking device 6 is used to limit the position of the pin shaft 1, an oil channel 7 is provided in the pin shaft 1, and the oil channel 7 is connected to the oil groove 8 on the two steel sleeves 4.

[0024] Specifically, the steel sleeve 3 is made of 45# steel with a wall thickness of no less than 10mm. It is securely welded to the corresponding hinge arm 2, and the weld is polished flat and smooth. The steel sleeve 4 is made of bearing steel with a hardness of HRC 54-60. The pin 1 is made of 40Cr, tempered and surface-hardened to a hardness of HRC 50-55.

[0025] Lubricating oil is injected into the pin shaft 1, and the injected lubricating oil flows to the corresponding steel sleeve 4 through the oil channel 7, and then flows to the entire steel sleeve 4 through the oil groove 8 of the inner ring of the steel sleeve 4, so that the contact surface between the steel sleeve 4 and the pin shaft 1 is filled with lubricating oil, which reduces the friction between the pin shaft 1 and the steel sleeve 4, reduces the wear rate of the pin shaft 1 and the steel sleeve 4, extends the service life, saves production costs, improves safety performance, and ensures the normal operation of the rubber collecting lifting platform.

[0026] Furthermore, the oil groove 8 includes a main oil groove 81, a connecting oil groove 82 and an end oil groove 83. The end oil groove 83 is distributed at both ends of the steel sleeve 4. The main oil groove 81 is connected to the connecting oil groove 82, and the connecting oil groove 82 is connected to the end oil groove 83. The connecting oil groove 82 is used to transport the lubricating oil in the main oil groove 81 to the end oil groove 83. The main oil groove 81 is connected to the oil channel 7.

[0027] The lubricating oil in the oil channel 7 first flows into the main oil groove 81 in the middle of the steel sleeve 4, then enters the connecting oil grooves 82 on both sides of the main oil groove 81, and finally flows into the end oil grooves 83 at both ends of the steel sleeve 4, and finally fills the entire oil groove 8, so that the contact surface between the steel sleeve 4 and the pin shaft 1 is always filled with lubricating oil, the lubrication is more sufficient, the friction between the pin shaft 1 and the steel sleeve 4 is minimized, the wear is reduced, and the service life is increased.

[0028] Furthermore, the connecting oil groove 82 is spiral, which can more fully fill the contact surface between the pin 1 and the steel sleeve 4 with lubricating oil, guide the lubricating oil to be evenly distributed on the surface of the steel sleeve 4, form a more stable oil film, and further improve the friction performance.

[0029] Furthermore, the fixing device 5 includes a screw 51, a nut 52, a fixing block 53, and a knob 54. The bottom of the screw 51 is fixedly connected to the fixing block 53, the upper part of the screw 51 is threadedly connected to the nut 52, and the top of the screw 51 is fixedly connected to the knob 54. The nut 52 is located between the fixing block 53 and the knob 54. The fixing block 53 passes through the through slot 9 on the steel sleeve seat 3 and the fixing slot 10 on the steel sleeve 4 in sequence for rotation and fixation. Specifically, the fixing block 53 is a rectangular parallelepiped structure. The width of the through slot 9 and the top of the fixing slot 10 is greater than the width of the fixing block 53, which facilitates the insertion of the fixing block 53. The fixing slot 10 is an inverted T-shaped structure. The width of the bottom of the fixing slot 10 is adapted to the length of the fixing block 53, which facilitates the locking of the fixing block 53.

[0030] When it is necessary to fix the steel sleeve 4 to the steel sleeve seat 3, the fixing block 53 is inserted into the through groove 9 and the fixing groove 10 in sequence, and the knob 54 is turned so that the bottom of the fixing block 53 is inserted into the bottom of the fixing groove 10 and locked, and then the nut 52 is turned so that the nut 52 presses the steel sleeve seat 3, thereby improving the fixing effect and preventing the steel sleeve 4 from separating from the steel sleeve seat 3 when the rubber collecting lifting platform is in operation. The structure has strong stability and firmness. At the same time, the structure is also more convenient for disassembly and replacement, and the replacement method is simple, which greatly improves the replacement efficiency.

[0031] Furthermore, the locking device 6 includes a locking washer 61 and a locking nut 62. The locking washer 61 is sleeved and installed on the pin shaft 1. The locking nut 62 is threadedly connected to the pin shaft 1. The tongue 63 on the locking washer 61 is plugged into the slot 64 on the locking nut 62.

[0032] The locking washer 61 is placed on the pin shaft 1, and is locked with the locking nut 62. The tongue 63 on the locking washer 61 is then inserted into the slot 64 of the locking nut 62. This limits the position of the pin shaft 1 and prevents the pin shaft 1 from separating from the steel sleeve 4 when the rubber collecting lifting platform moves. At the same time, this structure also facilitates the disassembly and replacement of the worn pin shaft 1, thereby improving the replacement efficiency.

[0033] Furthermore, an oil passage hole 11 is provided on a side of the pin shaft 1 away from the locking device 6 , the oil passage hole 11 is connected to the oil passage 7 , and a plug 12 is installed on the oil passage hole 11 .

[0034] By injecting lubricating oil into an oil channel hole 11, the lubricating oil is transported to the oil grooves 8 of the two steel sleeves 4 under the communication effect of the oil channel 7. There is no need to inject lubricating oil into the corresponding steel sleeves 4 from both ends of the pin shaft 1, which reduces the workload and improves the efficiency of oil injection.

[0035] Furthermore, the fixing method of the fixing device 5 can be that the steel sleeve 4 and the steel sleeve seat 3 are threadedly connected by bolts, or the steel sleeve 4 and the steel sleeve seat 3 are sleeved. Since the interference fit between the steel sleeve 4 and the steel sleeve seat 3 is small (0.01-0.02mm), the steel sleeve 4 can be removed using a screw puller.

[0036] The working principle of this embodiment is as follows:

[0037] First, insert the fixing block 53 into the through slot 9 and the fixing slot 10 in sequence, turn the knob 54 so that the bottom of the fixing block 53 is inserted into the bottom of the fixing slot 10 and locked, and then turn the nut 52 so that the nut 52 presses the steel sleeve seat 3, and fixes the steel sleeve 4 to the steel sleeve seat 3, and then insert the pin shaft 1 into the interior of the two steel sleeves 4, and then put on the locking washer 61, install the locking nut 62, and insert the tongue 63 on the locking washer 61 into the slot 64 of the locking bolt 62 for fixing.

[0038] Secondly, the lubricating oil is injected into the pin shaft 1 from the oil channel hole 11. Then, under the action of the oil channel 7, the lubricating oil injected into the pin shaft 1 enters the main oil grooves 81 of the two steel sleeves 4, then enters the connecting oil groove 82, and finally enters the end oil groove 83, so that the lubricating oil is evenly distributed on the surface of the steel sleeve 4. Finally, the plug 12 is used to seal it.

[0039] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A hinge arm kinematic pair for a rubber collecting lifting platform, comprising a pin (1) and two hinge arms (2), characterized in that: The two hinge arms (2) are fixedly connected with corresponding steel sleeve seats (3), and corresponding steel sleeves (4) are installed in the two steel sleeve seats (3). The steel sleeves (4) are detachably connected to the steel sleeve seats (3) through a fixing device (5). The pin shaft (1) is slidably connected to the two steel sleeves (4). A locking device (6) is provided on the pin shaft (1), and the locking device (6) is used to limit the position of the pin shaft (1). An oil channel (7) is provided in the pin shaft (1), and the oil channel (7) is connected to the oil groove (8) on the steel sleeve (4).

2. The hinge arm kinematic pair of the glue collecting lifting platform according to claim 1, characterized in that: The oil groove (8) comprises a main oil groove (81) and a connecting oil groove (82). The main oil groove (81) is connected to the connecting oil groove (82). The connecting oil groove (82) is used to transport the lubricating oil in the main oil groove (81) to both ends of the steel sleeve (4). The main oil groove (81) is connected to the oil channel (7).

3. The hinge arm kinematic pair of the glue collecting lifting platform according to claim 2, characterized in that: The connecting oil groove (82) is spiral-shaped.

4. The hinge arm kinematic pair of the glue collecting lifting platform according to claim 1, characterized in that: The fixing device (5) comprises a screw (51), a nut (52) and a fixing block (53); the bottom of the screw (51) is fixedly connected to the fixing block (53); the upper part of the screw (51) is threadedly connected to the nut (52); and the fixing block (53) sequentially passes through the through slot (9) on the steel sleeve seat (3) and the fixing slot (10) on the steel sleeve (4) to be rotated and fixed.

5. The hinge arm kinematic pair of the glue collecting lifting platform according to claim 4, characterized in that: The fixing groove (10) is an inverted T-shaped structure.

6. The hinge arm kinematic pair of the glue collecting lifting platform according to claim 1, characterized in that: The locking device (6) comprises a locking washer (61) and a locking nut (62); the locking washer (61) is sleeved and mounted on the pin shaft (1); the locking nut (62) is threadedly connected to the pin shaft (1); and the latch tongue (63) on the locking washer (61) is plugged into the latch groove (64) on the locking nut (62).

7. The hinge arm kinematic pair of the glue collecting lifting platform according to any one of claims 1 to 6, characterized in that: An oil passage hole (11) is provided on a side of the pin shaft (1) away from the locking device (6), the oil passage hole (11) is connected to the oil passage (7), and a plug (12) is installed on the oil passage hole (11).

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