Lifter tail wheel lubrication-free dry grinding bearing seat

Abstract

A bearing seat body comprises a connecting seat, first mounting holes are fixedly connected to the two sides of the outer wall of the connecting seat, a connecting groove is formed in the middle of the connecting seat, and a dust cleaning groove is formed in the inner wall of the connecting seat and located below the connecting groove. Clamping grooves are formed in the two sides of the inner wall of the dust removal groove, a limiting frame is fixedly connected to the position, located below the dust removal groove, of the bottom of the connecting base, a connecting block is arranged in the limiting frame, sliding blocks are fixedly connected to the two sides of the bottom of the connecting block, and the outer walls of the sliding blocks on the two sides are slidably connected with the two sides of the inner wall of the limiting frame correspondingly; and sealing gaskets are fixedly connected to the two sides of the connecting block and located above the sliding blocks, the sliding blocks are located on the outer sides of the sealing gaskets and movably connected with the ash removal groove, and when ash in the bearing seat needs to be removed, the connecting block can be pushed to be separated from the ash removal groove, so that ash in the bearing seat can be conveniently removed through the ash removal groove.

Description

Technical Field

[0001] The utility model relates to the technical field of a tail wheel bearing seat of a hoist, in particular to a non-lubricated dry grinding bearing seat of a tail wheel of a hoist. Background Art

[0002] The tail wheel bearing seat of the elevator usually refers to the seat used to support the tail wheel bearing of the elevator. The elevator is a kind of equipment used to transport materials vertically, and the tail wheel bearing seat supports the tail wheel bearing of the elevator so that it can rotate smoothly.

[0003] A Chinese patent discloses a non-lubricated dry grinding bearing seat for the tail wheel of a hoist (publication number: CN213511738U). The bearing seat of the device has the ability to discharge dust by itself, and the bearing seat does not need any lubricant and is not easy to be damaged. It solves the problem of the old-fashioned bearing seats on the market that the bearings are damaged due to dust entering the bearings due to damage to the oil seal. However, the device still has the following problems when in use:

[0004] The above-mentioned device has a leakage opening at one end of the bearing seat. Although the leakage opening can discharge dust inside the bearing seat, external dust can also easily enter the bearing seat through the leakage opening. Although a sealing dust cover is provided in the above-mentioned device, the dust discharged from the inside of the bearing seat through the leakage opening may cause dust accumulation in the sealing dust cover. When the tail wheel of the hoist shakes during operation, dust is easily lifted up and returns to the bearing seat through the leakage opening. Utility Model Content

[0005] The technical problems to be solved by the utility model are as follows:

[0006] External dust can also easily enter the bearing seat through the leak, especially when the tail wheel of the elevator shakes during operation, dust can easily be lifted up and return to the bearing seat through the leak.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A non-lubricated dry grinding bearing seat for a tail wheel of a hoist, comprising a tail wheel shaft, both sides of the tail wheel shaft are provided with connecting mechanisms, and the outer side of the connecting mechanism is provided with a bearing seat body;

[0009] Also includes:

[0010] The bearing seat body comprises a connecting seat, both sides of the outer wall of the connecting seat are fixedly connected with mounting holes 1, a connecting groove is provided in the middle of the connecting seat, a dust cleaning groove is provided on the inner wall of the connecting seat and below the connecting groove, and both sides of the inner wall of the dust cleaning groove are provided with clamping grooves;

[0011] The bottom of the connection seat is fixedly connected to a limit frame located below the dust cleaning slot, a connection block is arranged inside the limit frame, both sides of the bottom of the connection block are fixedly connected to sliders, and the outer walls of the sliders on both sides are slidably connected to the inner walls of the limit frame respectively;

[0012] Wherein, sealing pads are fixedly connected on both sides of the connection block and above the sliding block, and the sliding block is located on the outer side of the sealing pad and is movably connected to the dust cleaning trough.

[0013] As a further solution of the utility model: a turntable is rotatably connected in the middle of the inner wall of the connecting block, both ends of the outer wall of the turntable are fixedly connected to limit plates, and an extrusion block is fixedly connected to the outer side wall of the turntable near the limit plate.

[0014] As a further solution of the utility model: the inner wall of the connecting block and both sides of the turntable are slidably connected with pins, one end of the two pins located inside the connecting block is fixedly connected with a spring, and the other end of the spring is fixedly connected to the inner wall of the connecting block.

[0015] As a further solution of the utility model: one end of the pin shaft passes through the connecting block and the outer wall is engaged with the slot, the other end of the pin shaft is located inside the connecting block and the inner wall is rotatably connected with a ball, the outer wall of the ball shaft is slidably connected to the extrusion block, and the outer wall of the pin shaft is also movably connected to the limit plate.

[0016] As a further solution of the utility model: a rotating rod is fixedly connected to the middle of the bottom of the turntable, the bottom end of the rotating rod passes through the connecting block and is fixedly connected to a knob, one end of the outer wall of the knob is provided with a mounting hole 2, a screw is passed through the inner wall of the mounting hole 2, and one end of the screw passes through the mounting hole 2 and is threadedly connected to the connecting block.

[0017] As a further solution of the utility model: the connecting mechanism includes a connecting plate, an inner wall of the connecting plate is threadedly connected with a fastening bolt near the mounting hole, and one end of the fastening bolt passes through the connecting plate and is threadedly connected to the mounting hole.

[0018] As a further solution of the utility model: both ends of the tail wheel shaft pass through the connecting plate and the outer wall is rotatably connected to the inner wall of the connecting plate, and both ends of the tail wheel shaft are rotatably connected to the inner wall of the connecting groove.

[0019] The beneficial effects of the utility model are as follows: the utility model provides a cleaning groove at the lower end of the connecting groove of the bearing seat body, and a slidable connecting block is arranged inside the cleaning groove. When the bearing seat normally supports the tail wheel shaft, the connecting block is engaged in the cleaning groove to prevent external dust from entering the bearing seat through the cleaning groove. When it is necessary to clean the inside of the bearing seat, the connecting block can be pushed to separate from the cleaning groove, thereby facilitating the cleaning of the inside of the bearing seat through the cleaning groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a side view schematic diagram of the overall structure of the bearing seat body in the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the connecting block in the utility model;

[0024] Figure 4 This is a schematic diagram of the top view of the turntable structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the connecting block in the utility model when viewed from above.

[0026] In the figure: 1. tail wheel shaft; 2. connecting mechanism; 201. connecting plate; 202. fastening bolt; 3. bearing seat body; 301. connecting seat; 302. mounting hole one; 303. connecting groove; 304. cleaning groove; 305. limiting frame; 306. connecting block; 307. sliding block; 308. spring; 309. pin; 310. ball bearing; 311. turntable; 312. limiting plate; 313. extrusion block; 314. rotating rod; 315. knob; 316. slot; 317. mounting hole two; 318. screw. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-5As shown, a non-lubricated dry grinding bearing seat of a tail wheel of a hoist includes a tail wheel shaft 1, a connecting mechanism 2 is arranged on both sides of the tail wheel shaft 1, and a bearing seat body 3 is arranged on the outer side of the connecting mechanism 2; and further includes: wherein the bearing seat body 3 includes a connecting seat 301, and both sides of the outer wall of the connecting seat 301 are fixedly connected with mounting holes 1 302, a connecting groove 303 is opened in the middle of the connecting seat 301, and a dust cleaning groove 304 is opened on the inner wall of the connecting seat 301 and located below the connecting groove 303, and both sides of the inner wall of the dust cleaning groove 304 are opened There is a card slot 316; wherein, the bottom of the connecting seat 301 and located below the cleaning groove 304 is fixedly connected to the limit frame 305, and a connecting block 306 is arranged inside the limit frame 305. Both sides of the bottom of the connecting block 306 are fixedly connected to sliders 307, and the outer walls of the sliders 307 on both sides are slidably connected to the inner walls of the limit frame 305 on both sides; wherein, both sides of the connecting block 306 and located above the sliders 307 are fixedly connected to sealing pads, and the sliders 307 are located on the outside of the sealing pads and are movably connected to the cleaning groove 304, such as Figure 2 As shown, the sealing gasket is made of silicone and is used to fill the gap between the dust cleaning groove 304 and the slider 307 to prevent external dust from entering.

[0029] A turntable 311 is rotatably connected to the middle of the inner wall of the connecting block 306, and both ends of the outer wall of the turntable 311 are fixedly connected to the limiting plate 312. An extrusion block 313 is fixedly connected to the outer wall of the turntable 311 near the limiting plate 312. Figure 4 As shown, the extrusion block 313 has the largest width near the limiting plate 312;

[0030] The inner wall of the connecting block 306 and both sides of the rotating disk 311 are slidably connected with pins 309, one end of the two pins 309 located inside the connecting block 306 is fixedly connected with a spring 308, and the other end of the spring 308 is fixedly connected to the inner wall of the connecting block 306. Figure 3 As shown, the spring 308 pulls the pin 309 to retract into the interior of the connecting block 306;

[0031] One end of the pin 309 passes through the connecting block 306 and the outer wall is engaged with the slot 316. The other end of the pin 309 is located inside the connecting block 306 and the inner wall is rotatably connected with the ball 310. The outer wall of the ball 310 is slidably connected with the extrusion block 313. The outer wall of the pin 309 is also movably connected with the limit plate 312. Figure 3 and Figure 4 As shown, the ball 310 reduces the friction between the pin 309 and the extrusion block 313;

[0032] A rotating rod 314 is fixedly connected to the middle of the bottom of the rotating disk 311, and the bottom end of the rotating rod 314 passes through the connecting block 306 and is fixedly connected to a knob 315. A second mounting hole 317 is opened at one end of the outer wall of the knob 315, and a screw 318 is connected through the inner wall of the second mounting hole 317, and one end of the screw 318 passes through the second mounting hole 317 and is threadedly connected to the connecting block 306. Figure 3 and Figure 5 As shown, the screw 318 passes through the second mounting hole 317 and is fixed to the connecting block 306;

[0033] The connecting mechanism 2 includes a connecting plate 201, and a fastening bolt 202 is threadedly connected to the inner wall of the connecting plate 201 near the mounting hole 302. One end of the fastening bolt 202 passes through the connecting plate 201 and is threadedly connected to the mounting hole 302. Figure 1 As shown, the connecting plate 201 and the connecting seat 301 are fixed by fastening bolts 202;

[0034] The two ends of the tail wheel shaft 1 pass through the connecting plate 201 and the outer wall is rotatably connected to the inner wall of the connecting plate 201. The two ends of the tail wheel shaft 1 are rotatably connected to the inner wall of the connecting groove 303. Figure 1-Figure 2 As shown, a wear-resistant layer is provided at the contact end between the tail wheel shaft 1 and the connecting groove 303 .

[0035] The working principle of this utility model:

[0036] When it is necessary to clean the connecting groove 303 in the bearing seat body 3, first use a screwdriver to tighten the screw 318 to separate the screw 318 from the mounting hole 317, then turn the knob 315 and drive the turntable 311 to rotate through the rotating rod 314. When the turntable 311 rotates, the side extrusion block 313 gradually separates from the ball 310. At this time, the spring releases elastic potential energy to pull the pin 309 to shrink, and the ball 310 is close to the extrusion block 313.

[0037] Secondly, when the pin shaft 309 shrinks and is completely separated from the slot 316, the connecting block 306 is pulled down inside the limit frame 305, so that the connecting block 306 is separated from the cleaning slot 304. At this time, the inside of the connecting slot 303 is cleaned through the open cleaning slot 304.

[0038] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A non-lubricated dry grinding bearing seat for a tail wheel of a hoist, comprising a tail wheel shaft (1), connecting mechanisms (2) are arranged on both sides of the tail wheel shaft (1), and a bearing seat body (3) is arranged on the outer side of the connecting mechanism (2); It is characterized in that Also includes: The bearing seat body (3) comprises a connecting seat (301), both sides of the outer wall of the connecting seat (301) are fixedly connected with a mounting hole 1 (302), a connecting groove (303) is provided in the middle of the connecting seat (301), a dust cleaning groove (304) is provided on the inner wall of the connecting seat (301) and below the connecting groove (303), and both sides of the inner wall of the dust cleaning groove (304) are provided with a clamping groove (316); A limit frame (305) is fixedly connected to the bottom of the connection seat (301) and located below the dust cleaning groove (304); a connection block (306) is arranged inside the limit frame (305); sliders (307) are fixedly connected to both sides of the bottom of the connection block (306); and outer walls of the sliders (307) on both sides are slidably connected to both sides of the inner wall of the limit frame (305); Wherein, sealing pads are fixedly connected on both sides of the connection block (306) and located above the sliding block (307), and the sliding block (307) is located outside the sealing pad and is movably connected to the dust cleaning groove (304).

2. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 1 is characterized in that: A rotating disk (311) is rotatably connected in the middle of the inner wall of the connecting block (306), both ends of the outer wall of the rotating disk (311) are fixedly connected to a limiting plate (312), and an extrusion block (313) is fixedly connected to the outer wall of the rotating disk (311) near the limiting plate (312).

3. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 1 is characterized in that: The inner wall of the connecting block (306) and both sides of the rotating disk (311) are slidably connected with pin shafts (309), one end of the two pin shafts (309) located inside the connecting block (306) is fixedly connected with a spring (308), and the other end of the spring (308) is fixedly connected to the inner wall of the connecting block (306).

4. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 3 is characterized in that: One end of the pin shaft (309) passes through the connecting block (306) and the outer wall is engaged with the slot (316); the other end of the pin shaft (309) is located inside the connecting block (306) and the inner wall is rotatably connected with a ball (310); the outer wall of the ball (310) is slidably connected with the extrusion block (313); and the outer wall of the pin shaft (309) is also movably connected with the limiting plate (312).

5. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 2 is characterized in that: A rotating rod (314) is fixedly connected to the middle of the bottom of the rotating disk (311), the bottom end of the rotating rod (314) passes through the connecting block (306) and is fixedly connected to a knob (315), one end of the outer wall of the knob (315) is provided with a second mounting hole (317), the inner wall of the second mounting hole (317) is penetrated by a screw (318), and one end of the screw (318) passes through the second mounting hole (317) and is threadedly connected to the connecting block (306).

6. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 1 is characterized in that: The connection mechanism (2) comprises a connection plate (201), a fastening bolt (202) being threadedly connected to the inner wall of the connection plate (201) near the first mounting hole (302), and one end of the fastening bolt (202) passes through the connection plate (201) and is threadedly connected to the first mounting hole (302).

7. The non-lubricated dry grinding bearing seat of the tail wheel of the hoist according to claim 1 is characterized in that: Both ends of the tail wheel shaft (1) pass through the connecting plate (201) and the outer wall is rotatably connected to the inner wall of the connecting plate (201), and both ends of the tail wheel shaft (1) are rotatably connected to the inner wall of the connecting groove (303).

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