Wrench tool for positioning and locking winch shaft through steel balls

Abstract

The utility model relates to the technical field of wrench tools, and provides a wrench tool for positioning and locking a winch shaft through a steel ball, which is applied to a winding and pulling device for winding and unwinding a steel wire rope through rotation of the winch shaft, a connecting part is arranged at the end part of the winch shaft, and the wrench tool comprises a wrench rod and a fixing sleeve sleeved on the wrench rod; one end of the wrench rod is provided with a driving head used for being connected with the connecting part and transmitting torque, the middle of the wrench rod is provided with an anti-rotating head, and the side wall of the other end of the wrench rod is provided with an elastic component. At least two fixing screws are arranged at one end of the fixing sleeve, and the fixing screws are connected with a rolling and pulling device in the using process. A positioning cylinder is arranged at the other end of the fixing sleeve, and a locking ring groove, an unlocking ring groove and an anti-rotation part are arranged on the inner wall of the positioning cylinder. When the elastic component is clamped into the locking ring groove, the anti-rotation part is matched with the anti-rotation head, so that the wrench rod is limited to rotate relative to the fixing sleeve, locking of the winch shaft is achieved, when the elastic component is clamped into the unlocking ring groove, the anti-rotation part is separated from the anti-rotation head, and unlocking of the winch shaft is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wrench tool technology field, specifically, a wrench tool through steel ball positioning locking capstan shaft. BACKGROUND

[0002] The winding and pulling device usually drives the steel wire rope to be wound and unwound by the rotation of the capstan shaft to realize the actions such as object lifting and traction, for example, the winding machine and the capstan belong to the winding and pulling device.

[0003] However, under some working conditions, the steel wire rope always has a load, when the wrench is loosened, the capstan shaft will immediately reverse, and the steel wire rope will immediately be pulled back under the action of the load, so that the capstan shaft cannot be stopped at any angle (that is, the steel wire rope cannot be stopped at any position). Therefore, how to provide a wrench tool capable of locking the capstan shaft is a technical problem to be solved in the field. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a wrench tool capable of locking the capstan shaft by positioning the steel ball, so as to solve the above-mentioned defects of the prior art.

[0005] The utility model is implemented by the following technical solutions:

[0006] A wrench tool capable of locking the capstan shaft by positioning the steel ball is applied to a winding and pulling device capable of winding and unwinding the steel wire rope by the rotation of the capstan shaft, the end of the capstan shaft is provided with a connecting part, and the wrench tool comprises a wrench rod and a fixing sleeve sleeved on the wrench rod; one end of the wrench rod is provided with a driving head used for connecting the connecting part and transmitting the torque, the middle part of the wrench rod is provided with an anti-rotation head, and the side wall of the other end of the wrench rod is provided with an elastic part.

[0007] One end of the fixing sleeve is provided with at least two fixing screws, the fixing screws are connected with the winding and pulling device during use; the other end of the fixing sleeve is provided with a positioning cylinder, the inner wall of the positioning cylinder is provided with a locking ring groove, an unlocking ring groove and an anti-rotation part, when the elastic part is clamped into the locking ring groove, the anti-rotation part is matched with the anti-rotation head to limit the rotation of the wrench rod relative to the fixing sleeve, and when the elastic part is clamped into the unlocking ring groove, the anti-rotation part is separated from the anti-rotation head.

[0008] Optionally, the positioning cylinder and the fixing sleeve are detachably connected.

[0009] Optionally, the positioning cylinder and the fixing sleeve are connected through threads, and a first fastener is connected between the two in the radial direction.

[0010] Optionally, the elastic part comprises a spring and a steel ball, the wrench rod is provided with a mounting hole in the radial direction, and the spring and the steel ball are sequentially arranged in the mounting hole.

[0011] Optionally, the elastic components are arranged in two groups along the axial direction of the wrench rod, and are defined as an unlocking group and a locking group respectively, the unlocking group is used to be clamped into the unlocking ring groove, and the locking group is used to be clamped into the locking ring groove.

[0012] Optionally, the wrench rod is provided with a mounting cylinder, and the elastic components are arranged on the side wall of the mounting cylinder.

[0013] Optionally, the mounting cylinder is detachably connected with a handle sleeve, and a second fastener is arranged between the handle sleeve and the wrench rod in the radial direction.

[0014] Optionally, the handle sleeve and the mounting cylinder are connected through threads, and a third fastener is arranged between the handle sleeve and the mounting cylinder in the radial direction.

[0015] Optionally, a fourth fastener is arranged between the mounting cylinder and the wrench rod in the radial direction, and the mounting cylinder is provided with a holding part.

[0016] Optionally, the fixing sleeve is provided with a stepped hole for the fixing screw, an inner thread of a small-diameter section of the stepped hole is arranged to be connected with the fixing screw, and the fixing screw is connected with the winding and pulling device after sequentially passing through the small-diameter section and a large-diameter section of the stepped hole.

[0017] The technical scheme has at least the following advantages and beneficial effects: in the utility model, the fixing sleeve is provided with at least two fixing screws, the fixing screws are connected with the winding and pulling device during use, the fixing sleeve and the winding and pulling device are relatively fixed, the wrench rod is axially moved to make the elastic components clamped into the locking ring groove, at this time, the anti-rotation part is matched with the anti-rotation head, so that the rotation of the wrench rod relative to the fixing sleeve is limited, and the locking capstan shaft is realized; the wrench rod is axially moved to make the elastic components clamped into the unlocking ring groove, at this time, the anti-rotation part is separated from the anti-rotation head, the wrench rod can be rotated relative to the fixing sleeve, and the unlocking of the capstan shaft is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the basis of the drawings.

[0019] Figure 1 The utility model provides a kind of structure schematic diagram of wrench tool for locking capstan shaft by steel ball positioning;

[0020] Figure 2 The utility model provides a kind of plan view of wrench tool for locking capstan shaft by steel ball positioning.

[0021] Figure 3 A-A sectional view (wrench rod unlocked state) of Figure 2

[0022] Figure 4 B enlarged view of Figure 3

[0023] Figure 5 A-A sectional view (wrench rod locked state) of Figure 2

[0024] Figure 6 Connection structure schematic diagram of fixed sleeve and positioning cylinder

[0025] Figure 7 C-C sectional view of Figure 6

[0026] Figure 8 Connection structure schematic diagram of wrench rod, anti-rotation head, mounting cylinder and handle sleeve

[0027] Figure 9 Structure schematic diagram of anti-rotation head

[0028] Figure 10 Structure schematic diagram of a winding and pulling device in prior art

[0029] Figure legend: 1-wrench rod, 101-driving head, 2-fixed sleeve, 201-fixed screw, 202-step hole, 3-anti-rotation head, 301-skirt, 4-elastic component, 401-spring, 402-steel ball, 5-positioning cylinder, 501-locking ring groove, 502-unlocking ring groove, 503-anti-rotation part, 6-mounting cylinder, 7-handle sleeve, 8-first fastener, 9-second fastener, 10-third fastener, 11-fifth fastener, 12-winding and pulling device, 1201-steel wire rope, 1202-capstan shaft, 1203-connection part. DETAILED DESCRIPTION

[0030] Example 1

[0031] A wrench tool for locking capstan shaft by friction force, applied to a winding and pulling device 12 for winding and unwinding steel wire rope 1201 by rotating capstan shaft 1202, the end of capstan shaft 1202 is provided with connection part 1203 (see Figure 10 ). Referring to Figure 1 , the wrench tool includes wrench rod 1 and fixed sleeve 2 sleeved on wrench rod 1.

[0032] Referring to Figure 3 and Figure 4 ​​​​, one end of the fixing sleeve 2 is provided with two fixing screws 201, in use, the two fixing screws 201 are connected with the winding and pulling device 12, so as to realize the relative fixation of the fixing sleeve 2 and the winding and pulling device 12. It is easy to understand that at least two screws can limit the relative position of the fixing sleeve 2 and the winding and pulling device 12, so in other embodiments, the number of fixing screws 201 can of course be greater than two.

[0033] Further, the fixing sleeve 2 of the embodiment is provided with a stepped hole 202 for the fixing screw 201, the small diameter section of the stepped hole 202 is provided with an internal thread which can be connected with the fixing screw 201, in use, the fixing screw 201 passes through the small diameter section and the large diameter section of the stepped hole 202 in turn and is connected with the winding and pulling device 12, it is worth noting that in this way, even if the fixing screw 201 is separated from the winding and pulling device 12, it will not fall off from the fixing sleeve 2, that is, the fixing screw 201 always remains hanging on the fixing sleeve 2, which is more convenient to use.

[0034] Reference Figure 8 , one end of the wrench rod 1 is provided with a driving head 101, the driving head 101 is used to connect with the connecting part 1203 at the end of the capstan shaft 1202 and transmit torque, for example, the connecting part 1203 at the end of the capstan shaft 1202 of the embodiment is a hexagonal hole, then the driving head 101 is a hexagonal head which is matched with the hexagonal hole. Similarly, in other embodiments, the driving head 101 can be adaptively changed according to the shape of the connecting part 1203.

[0035] The middle part of the wrench rod 1 is provided with an anti-rotation head 3, as an option, the anti-rotation head 3 is connected with the wrench rod 1 through the fifth fastener 11 in the radial direction, that is, the anti-rotation head 3 and the wrench rod 1 are in a split type. In some embodiments, the anti-rotation head 3 can of course be integrally formed with the wrench rod 1, or be fixedly connected through other ways (such as welding).

[0036] Reference Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 , the other end side wall of the wrench rod 1 is provided with an elastic part 4, the other end of the fixing sleeve 2 is provided with a positioning cylinder 5, the inner wall of the positioning cylinder 5 is provided with a locking ring groove 501, an unlocking ring groove 502 and an anti-rotation part 503, when the elastic part 4 is clamped into the locking ring groove 501, the anti-rotation part 503 cooperates with the anti-rotation head 3 to limit the rotation of the wrench rod 1 relative to the fixing sleeve 2, so as to realize the locking of the capstan shaft 1202; when the elastic part 4 is clamped into the unlocking ring groove 502, the anti-rotation part 503 is separated from the anti-rotation head 3, the wrench rod 1 can rotate relative to the fixing sleeve 2, that is, the unlocking of the capstan shaft 1202 can be realized.

[0037] In this embodiment, the fixed sleeve 2 is installed with the wrench rod 1, and the anti-rotation head 3 is located at one end of the positioning cylinder 5 close to the fixed sleeve 2. The locking ring groove 501, the unlocking ring groove 502, and the anti-rotation part 503 on the positioning cylinder 5 are sequentially arranged in the direction close to the anti-rotation head 3. Of course, in other embodiments, the locking ring groove 501, the unlocking ring groove 502, and the anti-rotation part 503 can also be arranged between the anti-rotation head 3 and the fixed sleeve 2. In addition, those skilled in the art should understand that, since the wrench rod 1 needs to be axially moved during operation, the length of the driving head 101 should be sufficient to ensure that the driving head 101 does not separate from the connecting part 1203 when the wrench rod 1 is axially moved. In practical applications, the arrow and text can also be used for identification, so as to accurately know which direction the wrench rod 1 needs to be moved for unlocking and locking operations.

[0038] As an option, the positioning cylinder 5 is detachably connected with the fixed sleeve 2. Specifically, in this embodiment, the positioning cylinder 5 is connected with the fixed sleeve 2 through threads, and a first fastener 8 is radially connected between the two. The first fastener 8 prevents the positioning cylinder 5 from rotating relative to the fixed sleeve 2, thereby also limiting the axial displacement of the positioning cylinder 5 relative to the fixed sleeve 2 due to the relative rotation of the two. In some embodiments, the positioning cylinder 5 can also be connected and fixed with the fixed sleeve 2 only through a screw. In other embodiments, the positioning cylinder 5 can also be integrally formed with the fixed sleeve 2.

[0039] As an option, the anti-rotation part 503 of this embodiment is a regular decagon hole (for reference Figure 7 ), and the cross section of the anti-rotation head 3 perpendicular to the axis is also a regular decagon. Of course, in some embodiments, the anti-rotation part 503 can also be a hole with other polygonal structures. In other embodiments, the anti-rotation part 503 and the anti-rotation head 3 can also have other structures, as long as they can cooperate to prevent rotation. For example, the anti-rotation part 503 is an internal gear, and the anti-rotation head 3 is an external gear. For another example, the anti-rotation part 503 is a spline hole, and the anti-rotation head 3 is a spline.

[0040] As an option, the elastic component 4 of this embodiment includes a spring 401 and a steel ball 402. The wrench rod 1 is radially provided with a mounting hole, and the spring 401 and the steel ball 402 are sequentially arranged in the mounting hole. It should be understood that, in other embodiments, the elastic component 4 can also have other structures, such as a spring plunger.

[0041] On the basis of the above, the anti-rotation head 3 is provided with a skirt 301 (for reference Figure 9 ). After the anti-rotation head 3 cooperates with the anti-rotation part 503, the skirt 301 can abut against the end of the anti-rotation part 503, limiting the axial movement distance of the wrench rod 1, and avoiding the complete exposure of the steel ball 402 from the positioning cylinder 5, which causes the steel ball 402 to fall off. It should be understood that, on the basis of the anti-rotation head 3 being provided with the skirt 301, the positioning cylinder 5 and the fixed sleeve 2 should be separate (i.e., they cannot be integrally formed) to ensure smooth installation.

[0042] The wrench rod 1 is provided with the mounting cylinder 6, and the elastic component 4 is arranged on the side wall of the mounting cylinder 6. Further, the elastic component 4 is arranged in two groups in the axial direction of the wrench rod 1, and is defined as an unlocking group and a locking group, respectively. The unlocking group is arranged in the unlocking ring groove 502, and the locking group is arranged in the locking ring groove 501. It should be understood that when the unlocking group is arranged in the unlocking ring groove 502, the locking group is offset from the locking ring groove 501 (as shown in the figure), and similarly, when the locking group is arranged in the locking ring groove 501, the unlocking group is offset from the unlocking ring groove 502 (as shown in the figure). Figure 3 Further, the mounting cylinder 6 is detachably connected with the handle sleeve 7. Specifically, the handle sleeve 7 is connected with the mounting cylinder 6 through screwing, and the third fastener 10 is arranged between the handle sleeve 7 and the mounting cylinder 6 in the radial direction. The second fastener 9 is arranged between the handle sleeve 7 and the wrench rod 1 in the radial direction. In this way, the positions of the mounting cylinder 6, the handle sleeve 7 and the wrench rod 1 are relatively fixed. Figure 5

[0043] Further, the mounting cylinder 6 is detachably connected with the handle sleeve 7. Specifically, the handle sleeve 7 is connected with the mounting cylinder 6 through screwing, and the third fastener 10 is arranged between the handle sleeve 7 and the mounting cylinder 6 in the radial direction. The second fastener 9 is arranged between the handle sleeve 7 and the wrench rod 1 in the radial direction. In this way, the positions of the mounting cylinder 6, the handle sleeve 7 and the wrench rod 1 are relatively fixed.

[0044] Embodiment 2

[0045] The difference between the embodiment and the embodiment 1 is that the embodiment only provides the mounting cylinder 6, and does not provide the handle sleeve 7. The mounting cylinder 6 is lengthened to serve as a holding part, so as to facilitate holding. The fourth fastener is arranged between the mounting cylinder 6 and the wrench rod 1 in the radial direction, so as to fixedly connect the mounting cylinder 6 and the wrench rod 1.

[0046] The first fastener 8, the second fastener 9, the third fastener 10, the fourth fastener and the fifth fastener 11 in the utility model can be screws, rivets and the like.

[0047] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection range of the utility model.​

Claims

1. A wrench tool for locking a capstan shaft by a ball positioning, applied to a winding and pulling device for winding and unwinding a steel wire rope by rotating the capstan shaft, an end portion of the capstan shaft being provided with a connecting portion, characterized in that, The wrench rod is provided with a driving head at one end for connecting the connecting part and transmitting torque, a rotation prevention head in the middle, and an elastic component on the side wall of the other end. The other end of the fixing sleeve is provided with a positioning cylinder, the inner wall of the positioning cylinder is provided with a locking ring groove, an unlocking ring groove and a rotation prevention part, when the elastic component is clamped into the locking ring groove, the rotation prevention part cooperates with the rotation prevention head to limit the rotation of the wrench rod relative to the fixing sleeve, when the elastic component is clamped into the unlocking ring groove, the rotation prevention part is separated from the rotation prevention head.

2. A wrench tool for locking a capstan shaft by a ball detent according to claim 1, wherein The positioning cylinder and the fixing sleeve are detachably connected.

3. The wrench tool for locking the capstan shaft by the ball detent according to claim 1, wherein The positioning cylinder and the fixing sleeve are connected through threads, and a first fastener is connected between them in the radial direction.

4. The wrench tool for locking the capstan shaft by the ball detent according to claim 1, wherein The elastic component includes a spring and a steel ball, and the wrench rod is provided with a mounting hole in the radial direction, and the spring and the steel ball are sequentially arranged in the mounting hole.

5. The wrench tool for locking the capstan shaft by the ball detent according to claim 1, wherein The elastic component is arranged in two groups in the axial direction of the wrench rod, and is defined as an unlocking group and a locking group, the unlocking group is used for clamping into the unlocking ring groove, and the locking group is used for clamping into the locking ring groove.

6. A wrench tool for locking a capstan shaft by a ball detent according to any one of claims 1 to 5, characterized in that, The wrench rod is provided with a mounting cylinder, and the elastic component is arranged on the side wall of the mounting cylinder.

7. A wrench tool for locking a capstan shaft by a ball detent according to claim 6, wherein The mounting cylinder is detachably connected with a handle sleeve, and a second fastener is connected between the handle sleeve and the wrench rod in the radial direction.

8. A wrench tool for locking a capstan shaft by a ball detent according to claim 7, wherein The handle sleeve and the mounting cylinder are connected through threads, and a third fastener is connected between them in the radial direction.

9. The wrench tool for locking the capstan shaft by the ball detent according to claim 6, wherein A fourth fastener is connected between the mounting cylinder and the wrench rod in the radial direction, and the mounting cylinder is provided with a holding part.

10. The wrench tool for locking a capstan shaft by a ball detent according to any one of claims 1 to 5, wherein The fixing sleeve is provided with a stepped hole for passing the fixing screw, the small diameter section of the stepped hole is provided with an internal thread for connecting with the fixing screw, and the fixing screw is sequentially passed through the small diameter section and the large diameter section of the stepped hole and connected with the winding and pulling device.

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