CN204525284U - A kind of flexible gearing special spanner - Google Patents

Abstract

The utility model discloses a special wrench for a flexible transmission device, which comprises a booster handle, a sleeve connecting rod and a telescopic rod. The telescopic rod is coaxially arranged with the sleeve connecting rod. One end of the rod is provided with a long hole for accommodating the telescopic rod. The telescopic rod can slide axially relative to the sleeve rod in the long hole and lock with the sleeve rod in the direction of rotation. The locking screw for the axial position of the telescopic rod, the booster handle is provided with a transmission tenon, the end surface of the other end of the sleeve connecting rod is provided with a mortise that matches the transmission tenon, and the outer end surface of the telescopic rod is provided with a There are external hexagon attachments with detachable connections. The utility model aims to provide a special wrench for a flexible transmission device which can change the length of a connecting rod and is relatively convenient to use.

Description

A special wrench for flexible transmission

technical field

The utility model relates to the technical field of installation and maintenance of metallurgical equipment, in particular to a special wrench suitable for installation or maintenance of a flexible transmission device of a sintering machine.

Background technique

At present, during the installation or maintenance of most flexible transmission devices of sintering machines, an external hexagonal wrench is used for screwing the inner hexagonal bolt, and the length of the connecting rod is usually a fixed length. For example, Chinese patent announcement number CN202702196U discloses an integrated socket wrench , consists of two wrench rods, two connecting rods and two rotating shafts, the two ends of the two wrench rods are respectively nut sleeves of different specifications, the two wrench rods are connected by two connecting rods, and the two connecting rods The rods are respectively located on both sides of the two wrench rods, and the two ends of the two connecting rods are respectively connected with the two wrench rods by rotating shafts. Such an adapter is usually only applicable to a single occasion, and when the installation position of the transmission device is changed after redesign, it will bring inconvenience to use, thereby requiring replacement of the adapter, causing unnecessary waste.

Utility model content

The utility model aims to overcome the deficiencies in the prior art, and provides a special wrench for a flexible transmission device which can change the length of the connecting rod and is relatively convenient to use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A special wrench for a flexible transmission device, including a booster handle, a sleeve connecting rod and a telescopic rod, the telescopic rod is coaxially arranged with the sleeve connecting rod, the cross section of the telescopic rod is polygonal, and one end of the sleeve connecting rod is provided with a In the long hole for accommodating the telescopic rod, the telescopic rod can slide axially relative to the sleeve rod in the long hole and lock with the sleeve rod in the direction of rotation. The locking screw of the power booster handle is provided with a transmission tenon, the end surface of the other end of the sleeve connecting rod is provided with a mortise and groove matching the transmission tenon, and the outer end surface of the telescopic rod is provided with a detachable connection Outer hexagon attachment. The telescopic rod can move axially relative to the socket rod and is positioned by the locking screw, so the length can be adjusted, thereby improving the adaptability and versatility of the wrench.

As a preference, the sleeve connecting rod is provided with an auxiliary handle that can rotate around the sleeve connecting rod, and the auxiliary handle includes a movable ring and a handle that can rotate relative to the movable ring, and the rotation axis of the handle Perpendicular to the axis of the socket adapter. When the bolt to be tightened is located in a very narrow or deep recess, the convenience of holding the socket post is improved by holding the auxiliary handle, and the stability of the socket post during the bolt tightening process is also improved. The auxiliary handle has a flip function to facilitate the angle adjustment and storage of the bar.

Preferably, a thrust bearing is provided between the movable ring and the sleeve connecting rod, and a limit ring for axially positioning the thrust bearing is provided on the outer surface of the sleeve connecting rod. In this way, a thrust bearing is set between the movable ring and the sleeve connecting rod to reduce the relative friction between the two, the rotation process of the auxiliary handle relative to the sleeve connecting rod is smoother, and the influence of the holding of the auxiliary handle on bolt tightening is reduced.

As a preference, a limit bead and a chute for accommodating the limit bead are provided on the side of the end of the telescopic rod located in the elongated hole, and a limit spring is provided between the limit bead and the bottom of the chute. The inner wall is provided with a plurality of limiting grooves adapted to the limiting beads. Set the limit beads to cooperate with the chute, which can prevent the telescopic rod from being pulled out too quickly and separate from the long hole when adjusting the length, and can quickly perform preliminary positioning of the telescopic rod, which is convenient for locking the locking screw.

Preferably, a magnet block is embedded at the end of the handle bar near the sleeve connecting rod. When the auxiliary handle is not used, the end of the handlebar can be attracted by the magnet block to the sleeve post to reduce its external size.

Preferably, a rubber sleeve is provided on the outside of the handlebar.

The beneficial effects of the utility model are: (1) the length can be adjusted to meet different installation requirements, and the adaptability is high; (2) the auxiliary handle is provided for easy holding and the stability of the tightening process is improved; (3) the auxiliary handle is used to improve the stability of the tightening process; Angle adjustment to accommodate bolt tightening operations in tight or deep recesses.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

In the figure: telescopic rod 1, auxiliary handle 2, lever 2a, movable ring 2b, thrust bearing 201, limit ring 202, magnet block 203, booster handle 3, transmission tenon 3a, limit spring 4, sleeve connecting rod 5. Limiting groove 5a, chute 5b, tenon groove 5c, locking screw 6, outer hexagonal attachment 7, limiting bead 8.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Embodiment 1: In the embodiment shown in Figure 1, a special wrench for a flexible transmission device, including a booster handle 3, a sleeve extension rod 5 and a telescopic rod 1, the telescopic rod and the sleeve rod are coaxially arranged, telescopic The cross-section of the rod is polygonal, and one end of the sleeve connecting rod is provided with a long hole for accommodating the telescopic rod. The telescopic rod can slide axially relative to the sleeve connecting rod in the long hole and lock with the sleeve connecting rod in the direction of rotation. , the sleeve connecting rod is provided with a locking screw 6 for positioning the axial position of the telescopic rod, the booster handle is provided with a transmission tenon 3a, and the end surface of the other end of the sleeve connecting rod is provided with a drive tenon matching mortise 5c, the outer end surface of the telescopic rod is provided with an outer hexagonal attachment 7 that is detachably connected. The sleeve connecting rod is provided with an auxiliary handle 2 that can rotate around the sleeve connecting rod. The auxiliary handle includes a movable ring 2b and a handle rod 2a that can rotate relative to the movable ring. The rotation axis of the rod is perpendicular to the axial direction of the sleeve connecting rod. A thrust bearing 201 is provided between the movable ring and the sleeve connecting rod, and a limit ring 202 for axially positioning the thrust bearing is provided on the outer surface of the sleeve connecting rod. The telescoping rod is positioned at the side of one end in the elongated hole and is provided with limit bead 8 and the chute 5b that is used to accommodate limit bead, is provided with limit spring 4 between limit bead and the chute bottom, and is provided with several on the inner wall of elongate hole. The limit groove 5a adapted to the limit bead. A magnet block 203 is embedded at the end of the handlebar near the sleeve connecting rod, and a rubber sleeve is provided outside the handlebar.

In actual use, when it is necessary to use a wrench to twist the high-strength hexagon socket bolt, first insert one end of the external hexagonal attachment into the high-strength hexagon socket bolt hole, and then adjust the relative position of the telescopic rod and the sleeve connecting rod to meet the installation requirements. Insert the drive falcon of the booster handle into the mortise at the end of the socket rod, align the long hole at the outer end of the telescopic rod with the other end of the hexagonal attachment and insert it, so as to tighten or disassemble it, which makes it easier to align and rotate. When the installation environment is relatively narrow or the depth of the depression is large, you can use the auxiliary handle, and you can hold it by rotating the handle of the auxiliary handle to adjust it to a suitable angle.

Claims (6)

1. a flexible gearing special spanner, it is characterized in that, comprise reinforcement handle (3), sleeve extension rod (5) and expansion link (1), described expansion link (1) is coaxially arranged with sleeve extension rod (5), the cross section of expansion link (1) is polygon, one end of sleeve extension rod (5) is provided with the elongated hole for holding expansion link (1), expansion link (1) in elongated hole can relative sleeve extension bar (5) slide axially and on gyratory directions with sleeve extension rod (5) locking, sleeve extension rod (5) is provided with the lock-screw (6) for locating expansion link (1) axial location, described reinforcement handle (3) is provided with transmission tenon (3a), the end face of the other end of sleeve extension rod (5) is provided with the suitable tongue-and-groove (5c) of transmission tenon (3a), the outer face of described expansion link (1) is provided with the outer six side's annexes (7) removably connected.

2. a kind of flexible gearing special spanner according to claim 1, it is characterized in that, described sleeve extension rod (5) is provided with pair handle (2) can rotated around sleeve extension rod (5), described pair comprises active ring (2b) and can the barre (2a) that rotates of relative motion circle (2b) (2), and the pivot center of described barre (2a) perpendicular to sleeve extension rod (5) axially.

3. a kind of flexible gearing special spanner according to claim 2, it is characterized in that, be provided with thrust bearing (201) between described active ring (2b) and sleeve extension rod (5), sleeve extension rod (5) outer surface is provided with the spacing ring (202) thrust bearing (201) being carried out to axial location.

4. a kind of flexible gearing special spanner according to claim 1 or 2 or 3, it is characterized in that, the side that described expansion link (1) is positioned at elongated hole one end is provided with positive stop bead (8) and the chute (5b) for holding positive stop bead (8), be provided with limit spring (4) between described positive stop bead (8) and chute (5b) bottom, the madial wall of described elongated hole is provided with some stopper slots (5a) suitable with positive stop bead (8).

5. a kind of flexible gearing special spanner according to Claims 2 or 3, is characterized in that, described barre (2a) end is embedded with magnet piece (203) in the side near sleeve extension rod (5).

6. a kind of flexible gearing special spanner according to Claims 2 or 3, is characterized in that, described barre (2a) outside is provided with rubber sleeve.