Bolt anti-fracture structure for pneumatic vibrator end cover

Abstract

The utility model relates to the technical field of pneumatic vibrators, and discloses a bolt anti-fracture structure for pneumatic vibrator end covers, which comprises a pneumatic vibrator body and two pneumatic vibrator end covers respectively arranged on two sides of the pneumatic vibrator body. The pneumatic vibrator body is in interference static fit with the pneumatic vibrator end cover, and the pneumatic vibrator end cover is connected with the side face of the pneumatic vibrator body through a fixing bolt; according to the utility model, 8-12 screw holes for drilling and tapping the pneumatic vibrator end cover and the pneumatic vibrator body at the same time are respectively processed, 8-12 fixing bolts are screwed in the screw holes and are provided with retaining washers, so that the fixing bolts can prevent the pneumatic vibrator end cover and the pneumatic vibrator body from displacing and falling off, and the pneumatic vibrator end cover and the pneumatic vibrator body can be prevented from being damaged. Meanwhile, the fixing bolts are wrapped in the screw holes and cannot be subjected to bending force of high-frequency pulses, and meanwhile, the fixing bolts cannot be subjected to pulling force and shearing force of the high-frequency pulses.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic vibrator technical field, specifically a bolt anti -fracture structure for pneumatic vibrator end cover. BACKGROUND

[0002] Pneumatic vibrator is compressed air as power source, has small, the advantage of big exciting force, is widely used in large -diameter prestressed cement pipe, subway pipe piece, high -speed railway viaduct etc. Large -scale concrete prefabricated engineering necessary equipment, in the concrete construction process, gas source makes pneumatic vibrator produce strong vibration, through the base and transmit the vibration force to the mold, make the concrete internal gap be filled with mortar, the bubble is extruded, thereby reach the effect of compactness;

[0003] After the retrieval, such as the application number for 202311494872.3 is disclosed a rotor type pneumatic vibrator, it includes cylinder, the air inlet end cover and the air outlet end cover set at both ends of the cylinder, the air inlet shaft is arranged in the center of the air inlet end cover and the air outlet end cover, and the air direction plate, the inner rotor, the outer rotor in the cylinder, the air outlet end cover is provided with air outlet hole.

[0004] Whether it is imported pneumatic vibrator or domestic pneumatic vibrator, the structure of the body and two end covers is basically same.

[0005] 1, the body and two end covers adopt the step type embrace structure (see Figure 4 );

[0006] 2, the side surface of the end cover is evenly distributed 4-6 through -holes, the hole passes through two end covers and the body, and one end of the long bolt is screwed on the nut and locked to realize the fixation of the end cover and the body, the structure long bolt and the through -hole exist gap, due to strong vibration will produce high frequency pulse bending force, and the stress concentration will be easy to break at the junction 401 of the cylinder and the thread, affect the normal use of the pneumatic vibrator. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a bolt anti -fracture structure for pneumatic vibrator end cover, has prevent the displacement of pneumatic vibrator end cover and pneumatic vibrator body and fall off, and prevent the fixed bolt fracture effect.

[0008] The technical purpose is achieved by the following technical scheme: a bolt anti-fracture structure for a pneumatic vibrator end cover, comprising a pneumatic vibrator body and a pneumatic vibrator end cover, the pneumatic vibrator end cover is provided with two, which are respectively arranged on the two sides of the pneumatic vibrator body, and the pneumatic vibrator body and the pneumatic vibrator end cover are in interference static fit, the pneumatic vibrator end cover is connected with the side surface of the pneumatic vibrator body through fixing bolts, and the fixing bolts on each pneumatic vibrator end cover are provided with four to six.

[0009] The pneumatic vibrator body is provided with four to six thread holes one on each side, the surface of the pneumatic vibrator end cover is provided with four to six thread holes two, and adjacent thread holes one and thread holes two are connected through fixing bolts.

[0010] The sizes of adjacent thread holes one and thread holes two are the same, and the two are formed through the same drilling and tapping.

[0011] The surface of the fixing bolt is provided with a retreat-stop washer, and the retreat-stop washer is arranged on the outside of the pneumatic vibrator end cover.

[0012] The pneumatic vibrator body is provided with four to six thread holes one on each side, the surface of the pneumatic vibrator end cover is provided with four to six thread holes two, and adjacent thread holes one and thread holes two are connected through fixing bolts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure front view of the utility model;

[0014] Figure 2 It is an improved A-A sectional view of the utility model;

[0015] Figure 3 It is a B-B sectional view of the utility model;

[0016] Figure 4 It is an A-A sectional view before improvement.

[0017] In the drawing: 1, pneumatic vibrator body; 101, thread hole one; 2, pneumatic vibrator end cover; 201, thread hole two; 3, fixing bolt; 301, retreat-stop washer. DETAILED DESCRIPTION

[0018] The utility model further discloses the following through the accompanying drawings in the embodiment of the utility model.

[0019] Embodiment one

[0020] Please refer to Figures 1 to 3 The utility model discloses an anti-fracture structure of bolt on the end cover of pneumatic vibrator, including pneumatic vibrator body 1 and pneumatic vibrator end cover 2, pneumatic vibrator end cover 2 are provided with two, are arranged respectively at the both sides of pneumatic vibrator body 1, and the interference static cooperation between pneumatic vibrator body 1 and pneumatic vibrator end cover 2, pneumatic vibrator end cover 2 is connected with the side of pneumatic vibrator body 1 through fixed bolt 3, and fixed bolt 3 is wrapped in pneumatic vibrator body 1 and pneumatic vibrator end cover 2 and can not be subjected to the bending force of high frequency pulse, also can not be subjected to the tension and shearing force of high frequency pulse, and four fixed bolts 3 are arranged on each pneumatic vibrator end cover 2, and fixed bolt 3 is made of high-strength high-toughness material, can guarantee the overall strength of fixed bolt 3, and is not prone to damage.

[0021] In the embodiment, preferably, four threaded holes one 101 are arranged on the both sides of the pneumatic vibrator body 1, and four threaded holes two 201 are arranged on the surface of the two end covers 2 of the pneumatic vibrator, and adjacent threaded holes one 101 and threaded holes two 201 are connected through the fixed bolts 3, and the fixed bolts 3 are wrapped in the threaded holes one 101 and the threaded holes two 201 and can not be subjected to the bending force of high frequency pulse, also can not be subjected to the tension and shearing force of high frequency pulse.

[0022] In the embodiment, preferably, the sizes of the adjacent threaded holes one 101 and the threaded holes two 201 are same, and the two are formed through the same drilling and tapping, so that the adjacent threaded holes one 101 and the threaded holes two 201 are coaxial and have the same size, and the installation of the fixed bolts 3 is more favorable.

[0023] In the embodiment, preferably, the surface of the fixed bolt 3 is sleeved with a retreat-stop washer 301, and the retreat-stop washer 301 is arranged on the outside of the pneumatic vibrator end cover 2, and the retreat-stop washer 301 can prevent the bolt 3 from being reversed and separated from the end cover and the body due to the displacement of the end cover and the body.

[0024] Embodiment two

[0025] In the embodiment, the fixed bolts 3 and the threaded holes two 201 on the two end covers 2 of the pneumatic vibrator are each provided with 10, and the threaded holes one 101 on the two sides of the body are provided with 10, and the remaining structural components are same as those in embodiment one.

[0026] Embodiment three

[0027] The fixing bolt 3 and the threaded hole two 201 on each end cover 2 of the pneumatic vibrator in the embodiment are provided with 12, the threaded hole one 101 on the two sides of the body is provided with 12, and the remaining structural components are the same as those in the first embodiment.

[0028] In use, first, the end cover 2 of the pneumatic vibrator is pressed on the body 1 in interference static fit, then 8-12 threaded holes one 101 are processed on the two sides of the body 1 of the pneumatic vibrator, 8-12 threaded holes two 201 are processed on the two end covers 2 of the pneumatic vibrator, the threaded hole one 101 and the threaded hole two 201 are drilled and tapped at the same time, then the retainer washer 301 is sleeved on the surface of the fixing bolt 3, and the fixing bolt 3 is threadedly connected with the corresponding threaded hole one 101 and threaded hole two 201, the position of the end cover 2 of the pneumatic vibrator is fixed, the fixing bolt 3 can prevent the end cover 2 of the pneumatic vibrator and the body 1 of the pneumatic vibrator from being displaced and falling off, at the same time, the fixing bolt 3 itself is wrapped in the threaded hole one 101 and the threaded hole two 201 and cannot be subjected to the bending force of the high-frequency pulse, and cannot be subjected to the pulling force and the shearing force of the high-frequency pulse.

[0029] The above is only a preferred embodiment of the utility model, therefore, equivalent changes or modifications made according to the structure, features and principles of the utility model patent application range are included in the utility model patent application range.

Claims

1. A bolt breakage prevention structure for a pneumatic vibrator end cover, comprising a pneumatic vibrator body (1) and a pneumatic vibrator end cover (2), characterized in that, The pneumatic vibrator end cover (2) is provided with two, respectively arranged on both sides of the pneumatic vibrator body (1), and the pneumatic vibrator body (1) and the pneumatic vibrator end cover (2) are interference static fit, the pneumatic vibrator end cover (2) is connected with the side of the pneumatic vibrator body (1) through the fixing bolt (3), and the fixing bolt (3) on each pneumatic vibrator end cover (2) is provided with four to six.

2. The bolt breakage prevention structure for the end cover of a pneumatic vibrator according to claim 1, characterized by: Both sides of the pneumatic vibrator body (1) are provided with four to six threaded holes one (101), the surface of the pneumatic vibrator end cover (2) is provided with four to six threaded holes two (201), adjacent threaded holes one (101) and threaded holes two (201) are connected through the fixing bolt (3).

3. The bolt breakage prevention structure for the end cover of a pneumatic vibrator according to claim 2, characterized by: The size of adjacent threaded holes one (101) and threaded holes two (201) is same, and both are formed by same drilling and same tapping.

4. The bolt breakage prevention structure for the end cover of a pneumatic vibrator according to claim 1, characterized by: The surface of the fixing bolt (3) is sleeved with the retreat stop washer (301), and the retreat stop washer (301) is placed on the outside of the pneumatic vibrator end cover (2).

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