CN206277328U - A kind of synchronous dual drive screw wrenching tool - Google Patents

Abstract

The utility model is related to Automatic manual transmission field, disclose a kind of synchronous dual drive screw wrenching tool, the tightening device includes two driven gears and the drive gear being arranged between two driven gears, the drive gear can drive two driven gears to rotate simultaneously, so that the driven gear can treat stubborn bolt while being tightened.Operation is tightened in the utility model simple structure, easy to operate, low manufacture cost, the synchronization for being capable of achieving bolt.

Description

A synchronous double-drive bolt tightener

technical field

The utility model relates to the field of mechanical assembly, in particular to a synchronous double-drive bolt tightener.

Background technique

At present, mechanical equipment such as multi-axis tightening machines that can tighten multiple bolts at the same time are promoted in China. The installation position of the tightening machine needs to be fixed, and the working range is limited. It is suitable for the assembly of parts with bolt installation angles vertical or parallel to the ground and bolt torque requirements. . A tightening machine with two or more axes needs at least 300,000 or more, which means a large investment and high cost for the enterprise. For small-torque bolts that are installed on an inclined plane that is neither perpendicular nor parallel to the ground, and the distance between the bolts is small, and need to be tightened synchronously, manual cross-tightening is currently used for assembly.

This method has the following problems: 1. Synchronous tightening and tightening torque cannot be performed; 2. The production cycle is slow; 3. The cross-tightening force of the double-screw artificial bolts is uneven; 4. The assembly quality is affected.

Utility model content

The purpose of the invention of the utility model is to provide a synchronous double-drive bolt tightener with ingenious design, simple structure, low manufacturing cost and strong practicability in view of the above-mentioned problems.

The technical scheme adopted by the utility model is as follows: a synchronous double-drive bolt tightener, the tightener includes two driven gears and a drive gear arranged between the two driven gears, the drive gear can drive the two driven gears simultaneously Rotate, so that the driven gear can be tightened simultaneously with the bolts to be tightened.

A synchronous double-drive bolt tightener described in the utility model, the driving gear is rotatably installed in the gear box through the drive gear mandrel, and the driven gear is rotatably installed in the gear box through the driven gear mandrel. Inside the box; one end of the driving gear mandrel is connected to the driving mechanism, and the opposite end of the driven gear mandrel is provided with a connecting mechanism adapted to the bolt to be screwed.

In the synchronous double-drive bolt tightener described in the utility model, the driven gear mandrel and the driving gear mandrel are installed in the gear box through bearings.

In the synchronous double-drive bolt tightener described in the utility model, the axes of the driven gear and the drive gear are in the same plane.

A synchronous double-drive bolt tightener described in the utility model, the drive mechanism is an electric wrench, a pneumatic wrench or a manual wrench.

A synchronous double-drive bolt tightener described in the utility model, the connecting mechanism is a sleeve, and the front end of the sleeve is adapted to the bolt to be tightened.

In the synchronous double-drive bolt tightener described in the utility model, the sleeve is detachably mounted on the end of the driven gear mandrel.

In the synchronous double-drive bolt tightener described in the utility model, the driven gear mandrel and the driving gear mandrel protrude a certain distance from the gear box, and the protruding directions are opposite.

In the synchronous double-drive bolt tightener described in the utility model, an oil injection hole is provided on the front of the gear box corresponding to the occlusal part of the gears, and an oil drain hole is provided on the bottom of the side of the gear box, and is blocked by an oil drain bolt.

Compared with the prior art, the utility model has ingenious design, simple structure and convenient storage, no need to fix the position when working, reliable strength, low manufacturing cost and strong practicability, and the bolts can be tightened at the same time, which ensures that the bolts are evenly stressed and saves Manual, to ensure the quality of assembly, improve production efficiency.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a top view of the utility model.

Fig. 3 is a sectional view along line A-A in Fig. 2 .

Fig. 4 is a cross-sectional view along B-B in Fig. 2 .

Reference signs: 1 is the driving gear, 2 is the driven gear, 3 is the mandrel of the driving gear, 4 is the mandrel of the driven gear, 5 is the gear box, 6 is the fastening bolt of the gear box, 7 is the bearing, 8 is oil injection Holes, 9 are oil drain bolts, and 10 are pin holes.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 4, a synchronous double-drive bolt tightener, the tightener includes two driven gears 2 and a drive gear 1 arranged between the two driven gears, the size of each gear is the same, and the drive gear 1 can drive two The driven gear 2 rotates simultaneously, so that the driven gear 2 can be tightened simultaneously with the bolts to be tightened.

The driving gear 1 is installed on the driving gear mandrel 3, and the driven gear 2 is installed on the driven gear mandrel 4; the driven gear mandrel 4 and the driving gear mandrel 3 are installed in the gearbox 5 through the bearing 7, and the bearing 7 There are 6 in total. One end of the driving gear mandrel 3 is connected to the driving mechanism. The driving mechanism here is a pneumatic wrench (not shown in the figure), and the opposite end of the driven gear mandrel 4 is provided with a connecting mechanism adapted to the bolt to be screwed. The connection mechanism is designed as a sleeve (not shown in the figure), and one end of the sleeve is detachably installed on the end of the driven gear mandrel 4, and the other end of the sleeve can be inserted into the bolt to be screwed, and can be screwed Tighten the bolts; the axes of the driving gear 1 and the two driven gears 2 are in one plane.

Gear box 5 is divided into upper and lower parts from the mounting surface of the three gears, and is fixed by gear box fastening bolts 6, where there are 4 gear box fastening bolts 6; at the same time, on the upper and lower walls of gear box 5 Four pin shaft holes 10 are processed to install pin shafts (not shown in the figure), and the structure of the gear box 5 is strengthened to ensure the stability of the gear box 5 during work.

The driven gear mandrel 4 and the driving gear mandrel 3 protrude out of the gearbox for a certain distance, and the protruding directions are opposite. The specific protruding distance can be designed according to actual needs.

In addition, two oil injection holes 8 are provided on the front of the gear box 5 corresponding to the two occlusal parts of the gears. Through the oil injection holes 8, lubricating oil can be added to the two occlusal parts of the gears to lubricate the gears, making the working process smoother. An oil discharge hole is provided at the bottom of the gear box 5 side, and is blocked by an oil discharge bolt 9, and the deteriorated lubricating oil used for a period of time can be discharged through the oil discharge hole.

The working principle of the utility model: install two suitable sleeves on the ends of the two driven gear mandrels 4, then move the utility model as a whole, insert the other ends of the two sleeves into the bolts to be screwed, and then The pneumatic wrench (not shown in the figure) is connected to the end of the driving gear mandrel 3, and the pneumatic wrench is started; at this time, the pneumatic wrench drives the driving gear mandrel 3 to rotate, and the driving gear mandrel 3 drives the driving gear 1 to rotate, and the driving gear 1 drives two driven gears 2 to rotate at the same time, two driven gears 2 drive two driven gear mandrels 4 to rotate at the same time, and two driven gear mandrels 4 drive two sleeves to rotate at the same time Drive the two bolts to be tightened to rotate, when screwed to the proper position, close the pneumatic wrench, remove each tool in turn, and complete the bolt tightening. Through the above process, the synchronization of bolt tightening is well guaranteed, the bolts are evenly stressed, the assembly quality is guaranteed, the operation is simple and convenient, and equipment and labor costs are saved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. A synchronous double-drive bolt tightener, characterized in that: the tightener includes two driven gears (2) and a drive gear (1) arranged between the two driven gears (2), the drive gear ( 1) It can drive the two driven gears (2) to rotate simultaneously, so that the driven gears (2) can be tightened simultaneously with the bolts to be tightened. 2. A synchronous double-drive bolt tightener according to claim 1, characterized in that: the drive gear (1) is rotatably installed in the gearbox (5) through the drive gear mandrel (3), so The driven gear (2) is rotatably installed in the gearbox (5) through the driven gear mandrel (4); one end of the driving gear mandrel (3) is connected to the driving mechanism, and the driven gear mandrel ( 4) The opposite end is provided with a connecting mechanism adapted to the bolt to be screwed. 3. A synchronous double-drive bolt tightener according to claim 2, characterized in that: the driven gear mandrel (4) and the drive gear mandrel (3) are mounted on the gears through bearings (7) inside the box (5). 4. A synchronous double-drive bolt tightener according to claim 3, characterized in that: the axes of the driven gear (2) and the drive gear (1) are in the same plane. 5. A synchronous double-drive bolt tightener according to claim 4, wherein the drive mechanism is an electric wrench, an air wrench or a manual wrench. 6 . A synchronous double-drive bolt tightener according to claim 5 , wherein the connecting mechanism is a sleeve, and the front end of the sleeve is adapted to the bolt to be tightened. 7 . 7. A synchronous double-drive bolt tightener according to claim 6, characterized in that: the sleeve is detachably mounted on the end of the driven gear mandrel (4). 8. A synchronous double-drive bolt tightener according to claim 7, characterized in that: the driven gear mandrel (4) and the driving gear mandrel (3) extend out of the gear box (5 ) for a certain distance, and the extension direction is opposite. 9. A synchronous double-drive bolt tightener according to claim 8, characterized in that: the front of the gearbox (5) is provided with an oil injection hole (8) corresponding to the gear occlusal part, and the bottom of the side of the gearbox (5) There is an oil drain hole, which is blocked by the oil drain bolt (9).