CN215980517U

CN215980517U - Screw rod fixing device

Info

Publication number: CN215980517U
Application number: CN202121323003.0U
Authority: CN
Inventors: 刘存爱
Original assignee: Banshing Plastics Products Shanghai Co ltd
Current assignee: Banshing Plastics Products Shanghai Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-03-08
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a screw thread rod fixing device, which is used for fixing a screw thread rod on a transmission shaft of external equipment and comprises: a fixing assembly; the screw thread rod is inserted on the transmission shaft; the fixing component is arranged on the transmission shaft and connected with the screw tooth rod and used for fixing the screw tooth rod on the transmission shaft. The utility model overcomes the defect that the screw thread rod is easy to fall off in the working process in the prior art, and improves the connection stability between the screw thread rod and the transmission shaft.

Description

Screw rod fixing device

Technical Field

The utility model relates to the field of fastening devices, in particular to a thread rod fixing device.

Background

In the prior art, the screw tooth rod and the transmission shaft are fixed by pins, so that the defect of easy falling exists.

SUMMERY OF THE UTILITY MODEL

According to an embodiment of the present invention, there is provided a screw rod fixing apparatus for fixing a screw rod to a drive shaft of an external device, including: a fixing assembly;

the screw thread rod is inserted on the transmission shaft;

the fixing component is arranged on the transmission shaft and connected with the screw tooth rod and used for fixing the screw tooth rod on the transmission shaft.

Further, the fixing member includes: a positioning member and a fastener;

the positioning piece is inserted on the transmission shaft and connected with the screw thread rod and used for positioning the screw thread rod;

the fastener is arranged on the positioning piece, and the fastener is connected with the transmission shaft and used for fixing the positioning piece on the transmission shaft.

Furthermore, a positioning groove is arranged on the screw rod and is positioned at the joint of the screw rod and the transmission shaft, the positioning groove is matched with the positioning piece in position, and the positioning piece is inserted into the positioning groove and is used for positioning the screw rod.

Furthermore, the positioning part is a U-shaped clamping hook, and the fastening part is connected with two ends of the positioning part and used for fixing the positioning part on the transmission shaft.

Furthermore, the fastener is a fixing bolt, and the fastener is connected with the two ends of the positioning piece in a threaded connection mode.

According to the screw thread rod fixing device provided by the embodiment of the utility model, the defect that the screw thread rod is easy to fall off in the working process in the prior art is overcome, and the connection stability between the screw thread rod and the transmission shaft is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

FIG. 1 is a schematic view of an assembly of a screw shank fixture according to an embodiment of the present invention;

FIG. 2 is a full sectional view of a screw shank fixture according to an embodiment of the present invention;

fig. 3 is a schematic view of the screw shaft assembled to the fixing member according to the embodiment of the present invention (with the drive shaft hidden).

Detailed Description

The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.

First, a screw rod fixing device according to an embodiment of the present invention will be described with reference to fig. 1 to 3, which is used for fixing a screw rod 1 to a transmission shaft 2 of an external device, and has a wide application range.

As shown in fig. 2, a screw rod fixing device according to an embodiment of the present invention provides a screw rod fixing device including: the assembly 3 is fixed.

Specifically, as shown in fig. 1-2, a thread rod 1 is inserted on a transmission shaft 2; the fixing component 3 is arranged on the transmission shaft 2, and the fixing component 3 is connected with the thread rod 1 and used for fixing the thread rod 1 on the transmission shaft 2.

Further, as shown in fig. 1 to 3, the fixing member 3 includes: the positioning member 31 and the fastening member 32; the positioning piece 31 is inserted on the transmission shaft 2, the positioning piece 31 is connected with the screw thread rod 1, and the screw thread rod 1 is fixed on the transmission shaft 2; the positioning piece 31 does not protrude out of the surface of the transmission shaft 2, so that the influence on the assembly of the transmission shaft 2 is avoided; the fastening member 32 is provided on the positioning member 31, and the fastening member 32 is connected to the propeller shaft 2 for fixing the positioning member 31 to the propeller shaft 2.

Further, as shown in fig. 2 to 3, a pair of positioning grooves 11 is provided on the screw rod 1, the pair of positioning grooves 11 is located at a connection position of the screw rod 1 and the transmission shaft 2, the positioning grooves 11 are matched with the positioning piece 31, and two ends of the positioning piece 31 are respectively inserted into one positioning groove 11 for fixing the screw rod 1 on the transmission shaft 2, so as to prevent the screw rod 1 from falling off during rotation; the inner wall of the positioning groove 11 is completely attached to the positioning piece 31, the contact area between the positioning piece 31 and the positioning groove 11 is increased, the local stress caused by the thread rod 1 received by the positioning piece 31 is reduced, and the connection stability of the thread rod 1 is ensured.

Further, as shown in fig. 2 to 3, the positioning member 31 is a U-shaped hook, the fastening member 32 is a fixing bolt, and the fastening member 32 is connected to two ends of the positioning member 31 in a threaded connection manner, so as to fix the positioning member 31 on the transmission shaft 2, prevent the positioning member 31 from falling off, and improve the stability and the production efficiency of the screw rod 1.

Transmission shaft 2 links to each other with outside equipment, and when equipment during operation, equipment drives transmission shaft 2 and rotates, and then, transmission shaft 2 passes through setting element 31 and drives screw tooth pole 1 and rotate, and fastener 32 links to each other with the both ends of setting element 31, and with setting element 31 locking on transmission shaft 2, avoid setting element 31 to receive centrifugal force effect and drop rotating the in-process.

The thread rod fixing device according to the embodiment of the utility model is described above with reference to fig. 1 to 3, so that the defect that the thread rod 1 in the prior art is easy to fall off in the working process is overcome, and the connection stability between the thread rod 1 and the transmission shaft 2 is improved.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the utility model. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the utility model should be determined from the following claims.

Claims

1. A screw shank fixing device for fixing a screw shank to a drive shaft of an external device, comprising: a fixing assembly; the thread rod is inserted on the transmission shaft; the fixing assembly is arranged on the transmission shaft, connected with the thread rod and used for fixing the thread rod on the transmission shaft.

2. The screw shank fixture device of claim 1, wherein the fixture assembly comprises: a positioning member and a fastener; the positioning piece is inserted on the transmission shaft and connected with the screw thread rod for positioning the screw thread rod; the fastener is arranged on the positioning piece, and the fastener is connected with the transmission shaft and used for fixing the positioning piece on the transmission shaft.

3. The screw thread rod fixing device according to claim 2, wherein a positioning groove is provided on the screw thread rod, the positioning groove is located at a joint of the screw thread rod and the transmission shaft, the positioning groove is matched with the positioning member in position, and the positioning member is inserted into the positioning groove and used for positioning the screw thread rod.

4. The screw rod fixing device according to claim 2, wherein the positioning member is a U-shaped hook, and the fastening member is connected to both ends of the positioning member for fixing the positioning member to the transmission shaft.

5. The screw rod fixing device according to claim 4, wherein the fastening member is a fixing bolt, and the fastening member is connected to both ends of the positioning member in a threaded manner.