Rotary part safe connecting device with anti-falling structure

Abstract

The utility model relates to the technical field of mechanical rotary connecting pieces, in particular to a rotary part safety connecting device with an anti-falling structure, which comprises a supporting seat, a rotary piece is rotatably connected onto the supporting seat, a left annular groove and a right annular groove are arranged on a shaft body of the rotary piece, and the two annular grooves are respectively positioned on the left side and the right side of the supporting seat. The left side face and the right side face of the supporting base are each provided with a front anti-falling-off assembly and a rear anti-falling-off assembly, each anti-falling-off assembly comprises a rectangular plate fixedly installed on the side face of the supporting base, the rectangular plates are in threaded connection with fastening bolts, the side faces of the rectangular plates are fixedly provided with a left guide sleeve and a right guide sleeve, and guide columns are slidably connected into the guide sleeves. A U-shaped frame is fixedly installed at the ends of the two guide columns, a limiting roller is rotationally connected between the left side plate body and the right side plate body of the U-shaped frame through a rotating shaft, the end of the fastening bolt abuts against the U-shaped frame, and the limiting roller is located in the annular groove. According to the anti-falling limiting device, anti-falling limiting operation can be conveniently carried out, and meanwhile normal rotation of rotating parts cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical rotary connecting piece technical field, concretely relates to the rotary part safety connection device with anti -drop structure. BACKGROUND

[0002] In the production machine equipment, the rotary part such as shaft, gear, bearing etc. is the common component part, these parts are usually rotatably connected between the corresponding support seat, and the rotatable connecting part is generally supported by bearing, in addition, although bearing can play the effect of support, but can not realize the limiting operation to the rotary part, at this time, the end of the rotary part is usually used corresponding limiting part for limiting operation on most production machine equipment, such as limiting the rotary part by screw connection, key connection or pin connection etc.

[0003] But when limiting operation is carried out by the above-mentioned connecting mode, such as bolt is resisted at the end of the rotary part or corresponding position, although the limiting effect can be played to a certain extent, but the abutting force between bolt and rotary part is large, will cause the friction force between fastening bolt and rotary part to increase, after the friction force increases, will affect the normal rotating effect of the rotary part, is not conducive to the reasonable limiting, anti -drop protection operation of the rotary part under the premise of maintaining smooth rotation, affects the use effect. In view of this, we proposed the rotary part safety connection device with anti -drop structure. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing the rotary part safety connection device with anti -drop structure to solve the defects in the prior art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] The rotary part safety connection device with anti -drop structure, including support seat, rotatable connecting rotary piece on the support seat, the shaft body of rotary piece is provided with the annular groove that is symmetrical to left and right, two annular grooves are located at the left and right sides of support seat respectively, the left and right sides of support seat are provided with the anti -drop assembly that is symmetrical to front and back, the anti -drop assembly includes the rectangular plate of fixed mounting on the side of support seat, the fastening bolt of screw connection is connected on the rectangular plate, the guide sleeve that is symmetrical to left and right is fixedly installed on the side of rectangular plate, the guide column of sliding connection is installed in guide sleeve, the U-shaped frame is fixedly installed at the end of two guide columns, the limiting roller is rotatably connected between the left and right side plate bodies of U-shaped frame through the rotating shaft, the end of fastening bolt is resisted on U-shaped frame, and the limiting roller is located in annular groove.

[0007] Preferably, the support seat is fixedly provided with a bearing, and the shaft body of the rotating piece penetrates through the bearing and is rotationally connected with the bearing.

[0008] Preferably, the limiting roller is matched with the annular groove in size, and the limiting roller abuts against the groove wall of the annular groove and is rotationally connected with the annular groove.

[0009] Preferably, the top plate body of the U-shaped frame is fixedly provided with a positioning cylinder, the positioning cylinder is provided with a plug-in groove, and the end rod of the fastening bolt is plug-in matched with the plug-in groove.

[0010] Preferably, the fastening bolt is provided with a gasket, and the fastening bolt presses the gasket against the rectangular plate.

[0011] Preferably, the guide sleeve is provided with a sliding cavity, and the end of the guide column is fixedly provided with a sliding block, which is located in the sliding cavity and is slidingly connected with the sliding cavity.

[0012] Preferably, the sliding block is matched with the sliding cavity in size, and the outer diameter of the sliding block is greater than the outer diameter of the guide column.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a limiting roller is arranged on the U-shaped frame, and the limiting roller is matched with the annular groove in size, and the limiting roller abuts against the groove wall of the annular groove and is rotationally connected with the annular groove.

[0015] 2、The utility model discloses a guide column and a guide sleeve, realize the movement of the U-shaped frame and guide operation, in addition, the sliding block is slidingly connected between the sliding cavity, and the sliding block cannot slip from the bottom of the sliding cavity, realizes the limiting operation of the U-shaped frame, makes the U-shaped frame not appear the situation of falling. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the partial structure schematic diagram of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the anti -drop off subassembly of the utility model;

[0019] Figure 4Part structure diagram of the anti-falling assembly of the utility model is shown in the figure.

[0020] Figure 5 The cross-sectional view of the guide column and the guide sleeve of the utility model is shown in the figure.

[0021] The meanings of the various reference numerals in the figure are as follows:

[0022] 1, support seat; 10, bearing; 11, rotating part; 12, annular groove;

[0023] 2, anti-falling assembly; 20, rectangular plate; 21, U-shaped frame; 22, positioning cylinder; 221, plug-in groove; 23, limiting roller; 24, guide column; 241, sliding block; 25, guide sleeve; 251, sliding chamber; 26, fastening bolt; 27, gasket. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: the safe connection device of rotating part component with anti-falling structure, including support seat 1, rotatingly connected with rotating part 11 on support seat 1, bearing 10 is fixedly installed in support seat 1, the shaft body of rotating part 11 passes through bearing 10 and is rotatably connected between bearing 10, realize the support operation to rotating part 11, simultaneously also enable rotating part 11 to freely rotate;

[0026] Specifically, the shaft body of rotating part 11 is provided with left and right two mutually symmetrical annular grooves 12, two annular grooves 12 are located at the left and right sides of support seat 1 respectively, the left and right sides of support seat 1 are all provided with front and rear two mutually symmetrical anti-falling assemblies 2, anti-falling assembly 2 includes rectangular plate 20 fixedly installed on the side surface of support seat 1, rectangular plate 20 is screw-connected with fastening bolt 26, the side surface of rectangular plate 20 is fixedly installed with left and right two mutually symmetrical guide sleeves 25, guide sleeve 25 is slidably connected with guide column 24 in, the end of two guide columns 24 is fixedly installed with U-shaped frame 21, the left and right side plate bodies of U-shaped frame 21 are rotatably connected with limiting roller 23 by rotating shaft, the end of fastening bolt 26 is against U-shaped frame 21, limiting roller 23 is located in annular groove 12, the size of limiting roller 23 is adapted to the size of annular groove 12, limiting roller 23 is against the groove wall of annular groove 12 and rotatably connected between annular groove 12, realize the limiting operation using limiting roller 23 against in annular groove 12, play the effect of anti-falling protection.

[0027] In this embodiment, the top plate body of the U-shaped frame 21 is fixedly provided with a positioning cylinder 22, the positioning cylinder 22 is provided with a plug-in groove 221, the end rod of the fastening bolt 26 is plug-in matched with the plug-in groove 221, and the plug-in groove 221 plays a guiding effect on the insertion of the fastening bolt 26.

[0028] Specifically, the fastening bolt 26 is provided with a gasket 27, the fastening bolt 26 presses the gasket 27 on the rectangular plate 20, and the gasket 27 can prevent the fastening bolt 26 from loosening.

[0029] Further, the guide sleeve 25 is provided with a sliding chamber 251, and the end of the guide column 24 is fixedly provided with a sliding block 241, the sliding block 241 is located in the sliding chamber 251 and is slidably connected with the sliding chamber 251, and the sliding connection between the guide sleeve 25 and the guide column 24 can guide the movement of the U-shaped frame 21.

[0030] In addition, the size of the sliding block 241 is matched with the size of the sliding chamber 251, the outer diameter of the sliding block 241 is greater than the outer diameter of the guide column 24, so that the sliding block 241 will not fall out of the bottom of the sliding chamber 251, and the U-shaped frame 21 will not fall off.

[0031] The rotating part safety connection device with the anti-falling structure of the utility model in use, the lower U-shaped frame 21 is moved to the limit roller 23 and moves to the annular groove 12, then the fastening bolt 26 is appropriately tightened, the end of the fastening bolt 26 is inserted into the plug-in groove 221, at this time, the fastening bolt 26 appropriately presses the U-shaped frame 21 downward, the limit roller 23 is appropriately pressed on the groove wall of the annular groove 12, and the limit roller 23 realizes the limiting operation on the rotating part 11, and prevents the rotating part 11 from falling off.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safety connection device for rotary parts with anti-falling structure, comprising a support seat (1), characterized in that: The support seat (1) is rotatably connected with a rotating part (11), the shaft body of the rotating part (11) is provided with two left and right symmetrical annular grooves (12), the two annular grooves (12) are located on the left and right sides of the support seat (1) respectively, the left and right sides of the support seat (1) are provided with two front and rear symmetrical anti-falling assemblies (2), the anti-falling assembly (2) comprises a rectangular plate (20) fixedly installed on the side of the support seat (1), the rectangular plate (20) is threadedly connected with a fastening bolt (26), the side of the rectangular plate (20) is fixedly installed with two left and right symmetrical guide sleeves (25), the guide sleeve (25) is slidably connected with a guide column (24), the end of the two guide columns (24) is fixedly installed with a U-shaped frame (21), the left and right side plates of the U-shaped frame (21) are rotatably connected with a limiting roller (23) through an rotating shaft, the end of the fastening bolt (26) abuts against the U-shaped frame (21), and the limiting roller (23) is located in the annular groove (12).

2. The anti-drop structure-equipped rotary component safety connection device according to claim 1, characterized by: The support seat (1) is rotatably connected with a rotating part (11), the shaft body of the rotating part (11) is provided with two left and right symmetrical annular grooves (12), the two annular grooves (12) are located on the left and right sides of the support seat (1) respectively, the left and right sides of the support seat (1) are provided with two front and rear symmetrical anti-falling assemblies (2), the anti-falling assembly (2) comprises a rectangular plate (20) fixedly installed on the side of the support seat (1), the rectangular plate (20) is threadedly connected with a fastening bolt (26), the side of the rectangular plate (20) is fixedly installed with two left and right symmetrical guide sleeves (25), the guide sleeve (25) is slidably connected with a guide column (24), the end of the two guide columns (24) is fixedly installed with a U-shaped frame (21), the left and right side plates of the U-shaped frame (21) are rotatably connected with a limiting roller (23) through an rotating shaft, the end of the fastening bolt (26) abuts against the U-shaped frame (21), and the limiting roller (23) is located in the annular groove (12).

3. The anti-drop structure-equipped rotary component safety connection device according to claim 1, characterized by: The limiting roller (23) is matched with the size of the annular groove (12), the limiting roller (23) abuts against the groove wall of the annular groove (12) and is rotatably connected with the annular groove (12).

4. The anti-drop structure-equipped rotary component safety connection device according to claim 1, characterized by: The top plate body of the U-shaped frame (21) is fixedly installed with a positioning cylinder (22), the positioning cylinder (22) is provided with a plug-in groove (221), and the end rod body of the fastening bolt (26) is plug-in matched with the plug-in groove (221).

5. The anti-drop structure-equipped rotary component safety connection device according to claim 1, characterized by: The fastening bolt (26) is provided with a gasket (27), and the fastening bolt (26) presses the gasket (27) against the rectangular plate (20).

6. The anti -fall-off structure-equipped rotary component safety connection device according to claim 1, characterized by: The guide sleeve (25) is provided with a sliding chamber (251), the end of the guide column (24) is fixedly installed with a sliding block (241), and the sliding block (241) is located in the sliding chamber (251) and is slidably connected with the sliding chamber (251).

7. The anti-drop structure-equipped rotary component safety connection device according to claim 6, characterized by: The size of the sliding block (241) is matched with the size of the sliding chamber (251), and the outer diameter of the sliding block (241) is greater than the outer diameter of the guide column (24).

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