Manual auxiliary tower crane rotation tool

Abstract

The utility model discloses a tool for manually assisting rotation of a tower crane, and relates to the field of design of engineering auxiliary equipment. The end of the sleeve is fixed to the side wall of one end of the transverse rod and is perpendicular to the transverse rod, and the inner diameter of the sleeve is matched with the outer diameter of a motor shaft; the end portion of the rotating handle is fixed to the side wall of the other end of the cross rod, and the sleeve and the rotating handle are arranged on the two sides of the cross rod respectively; a threaded through hole is formed in the side wall of the sleeve, a first bolt is connected to the threaded through hole in a threaded mode, and the end of the first bolt stretches into the sleeve and is used for stretching into a groove in the side wall of a motor shaft. By the adoption of the scheme, manual rotation can be conveniently carried out under the state that no power source exists on site, the influence of the factors on site construction is eliminated, and the effects of improving construction efficiency and reducing construction cost are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering auxiliary equipment design field, concretely relates to a manual auxiliary tower crane rotation tool. BACKGROUND

[0002] In the process of installation and disassembly, the tower crane needs to adjust the jib and the balance arm to different positions and spatial angles through the rotation mechanism driven by the motor to ensure that the tower crane has the optimal hoisting distance for each component to be installed (or disassembled) and to ensure the smooth completion of installation and disassembly.

[0003] However, due to the influence of the construction site, there are cases of no power supply or temporary power failure at the construction site, which leads to the inability to normally use the electric control rotation. In this case, the tower crane can be manually rotated by using an open wrench of appropriate specifications to twist the rotating screw rod at the top of the rotation reducer, but due to the large reduction of the rotation reducer, the open wrench can only twist a small angle each time, and the manual rotation efficiency is very low, so a device for assisting the rotation of the manual auxiliary tower crane rotation mechanism needs to be designed to improve the rotation efficiency of the tower crane. UTILITY MODEL CONTENTS

[0004] The utility model discloses to solve the deficiency of prior art, the purpose is to provide a kind of manual auxiliary tower crane rotation tool, using the scheme, under the condition of no power supply on site, manual rotation can be conveniently carried out, exclude the influence of such factors on site construction, reach the effect of improving construction efficiency, reduce construction cost.

[0005] The utility model discloses the following technical scheme to realize:

[0006] A kind of manual auxiliary tower crane rotation tool, comprising:

[0007] Cross bar;

[0008] Sleeve, the sleeve end is fixed to the cross bar one end side wall, and it is perpendicular to the cross bar, the inner diameter of the sleeve and the outer diameter size of motor shaft are compatible;

[0009] Rotary handle, the rotary handle end is fixed to the cross bar other end side wall, and the sleeve and the rotary handle are separately arranged on the two sides of the cross bar;

[0010] The side wall of the sleeve is provided with threaded hole, the first bolt is threadedly connected in the threaded hole, the first bolt end is inserted into the sleeve, and is used to be inserted into the recess of motor shaft side wall.

[0011] The utility model provides a kind of manual auxiliary tower crane rotation tool, adopt the scheme, under the condition of no power supply on site, it can be conveniently rotated manually, exclude the influence of such factors on site construction, reach the effect of improving construction efficiency, reduce construction cost.Specific scheme includes crossbar, sleeve and rotating handle are connected respectively on the lateral wall of both ends of crossbar, and are arranged on both sides of crossbar;Wherein sleeve one end is connected on the lateral wall of crossbar;Since motor shaft is composed of upper and lower two parts, and is forced engagement, so ordinary tool will not separate it, therefore according to the special structure of this motor shaft, when being used specifically, motor shaft can be sleeved in sleeve first, when the forced engagement part of motor shaft is located in sleeve, recess is formed on the lateral wall of forced engagement position, bolt can be rotated at this time, so that bolt end portion can be just aligned with recess and extend into recess, to limit the rotation of motor shaft;After connection is completed, rotating handle can be rotated to drive the synchronous rotation of entire rotation tool and motor shaft.The construction efficiency of site is greatly improved by this rotation tool.

[0012] Further optimization, since the engagement position of motor shaft is circumferentially provided with four recesses, to improve stability during rotation, the lateral wall of sleeve is uniformly provided with a plurality of threaded through holes, and each threaded through hole is threadedly connected with a first bolt.

[0013] Further optimization, to facilitate the stability of motor shaft, first through hole is formed in the lateral wall of one end of crossbar, and the end portion of motor shaft is arranged to pass through the first through hole.In the present scheme, since the end portion of motor shaft is provided with a thin shaft, first through hole is formed in crossbar, and the diameter of first through hole is matched with that of thin shaft;After the thin shaft passes through, the end surface of motor shaft abuts against the lateral wall of crossbar, to improve the stability of motor shaft.

[0014] Further optimization, to improve connection strength, the end portion of sleeve is welded with the crossbar.

[0015] Further optimization, to realize detachable connection of rotating handle, second through hole is formed in the lateral wall of the other end of crossbar, the end portion of rotating handle is provided with screw rod, one end of screw rod, away from rotating handle, passes through second through hole and extends out of crossbar, and the portion of screw rod, extending out of crossbar, is sleeved with nut.

[0016] Further, in order to facilitate the close connection between the rotating handle and the crossbar and improve the stability during rotation, the rotating handle is in a cylindrical shape, the second through hole includes a large-diameter hole and a small-diameter hole from one side of the crossbar to the other side, the size of the large-diameter hole is matched with the size of the rotating handle, and the size of the small-diameter hole is matched with the size of the screw rod.

[0017] The end of the rotating handle can extend into the large-diameter hole and abut against the step surface between the large-diameter hole and the small-diameter hole. In this scheme, the rotating handle extends into the crossbar through the large-diameter hole, so that the rotating handle can act on the crossbar during manual rotation, thereby improving the stability during rotation. The end of the rotating handle abuts against the step surface between the large-diameter hole and the small-diameter hole, and is tightly connected by tightening of the external nut.

[0018] Further, in order to improve the friction when holding, the rotating handle is further sleeved with an anti-skid sleeve.

[0019] Further, in order to avoid the anti-skid sleeve from sliding or even falling along the length direction of the rotating handle, the middle part of the rotating handle is provided with a shaft shoulder, the end of the rotating handle away from the crossbar is provided with an end cover, the diameter of the end cover is greater than the diameter of the rotating handle, and the anti-skid sleeve is arranged between the shaft shoulder and the end cover.

[0020] Further, in order to facilitate the quick disassembly and assembly of the anti-skid sleeve, the end cover and the end of the rotating handle are connected through a second bolt. The threaded hole is arranged at the center of the end of the rotating handle, so as to facilitate the connection of the second bolt.

[0021] As a redundant scheme, the crossbar is made of square steel.

[0022] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0023] The utility model discloses a kind of manual auxiliary tower crane slewing tools, can be applied to the construction site needing tower crane slewing mechanism to rotate under no power supply state;Through the device designed and engaged with the tower crane motor part of site, using manual mode, solve the problem that tower crane slewing mechanism cannot rotate under no power supply state, improve the construction efficiency of site, shorten construction period, it is easy to operate, reduce the input of manpower, reduce construction cost.Economy, safety, work efficiency are taken into account. DRAWINGS

[0024] The drawings described herein are used to provide further understanding of the embodiments of the utility model, constitute a part of this application, and do not constitute limitation to the embodiments of the utility model.In the drawings:

[0025] Figure 1The utility model provides a structure schematic view of manual auxiliary tower crane rotary tool.

[0026] Figure 2 The utility model provides a front view of manual auxiliary tower crane rotary tool.

[0027] Figure 3 The utility model provides a side view of manual auxiliary tower crane rotary tool.

[0028] Figure 4 The utility model provides a sectional view of manual auxiliary tower crane rotary tool.

[0029] Figure 5 The utility model provides the cooperation schematic view of first bolt and motor shaft.

[0030] Mark and corresponding part name in drawing:

[0031] 1-cross bar, 101-first through hole, 102-second through hole, 2-sleeve, 3-rotary handle, 301-screw rod, 302-shaft shoulder, 303-end cover, 304-second bolt, 4-first bolt, 5-nut, 6-anti -slip cover, 7-motor shaft. Specific implementation

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further explained in detail below, the utility model is only used to explain the utility model, and does not be regarded as the limitation of the utility model.

[0033] Embodiment:

[0034] The embodiment provides a kind of manual auxiliary tower crane rotary tool, as shown in Figure Figures 1-5 It includes:

[0035] Cross bar 1;

[0036] Sleeve 2, the sleeve 2 end is fixed to the cross bar 1 one end side wall, and is perpendicular to the cross bar 1, the inner diameter of the sleeve 2 and the outer diameter size of motor shaft 7 are compatible;

[0037] Rotary handle 3, the rotary handle 3 end is fixed to the cross bar 1 other end side wall, and the sleeve 2 and the rotary handle 3 are separately arranged on the two sides of the cross bar 1;

[0038] The side wall of the sleeve 2 is provided with threaded through hole, the first bolt 4 is threadedly connected in the threaded through hole, the first bolt 4 end is inserted into the sleeve 2, and is used to be inserted into the recess of motor shaft 7 side wall.

[0039] The utility model provides a kind of manual auxiliary tower crane rotation tool, adopt the scheme, under the condition of no power supply in the field, it can be conveniently rotated manually, exclude the influence of such factors on field construction, reach the effect of improving construction efficiency, reduce construction cost.Specific scheme, including horizontal rod 1, sleeve 2 and rotating handle 3 are connected respectively in the lateral wall of horizontal rod 1 two ends, and are separately arranged in the two sides of horizontal rod 1;Wherein, sleeve 2 one end is connected in the lateral wall of horizontal rod 1;Since motor shaft 7 is composed of upper and lower two parts, and is forced engagement, so ordinary tool will not separate it, therefore according to the special structure of this motor shaft 7, in specific use, motor shaft 7 can be first sleeved in sleeve 2, when the forced engagement part of motor shaft 7 is located in sleeve 2, recess is formed in the lateral wall of forced engagement position, at this time, bolt can be rotated, so that bolt end can be just aligned with recess, and extend into recess, to limit the rotation of motor shaft 7;After connection, rotating handle 3 can be rotated to drive the synchronous rotation of entire rotation tool and motor shaft 7.Through this rotation tool, the construction efficiency of field is greatly improved.

[0040] In the embodiment, the lateral wall of sleeve 2 is uniformly distributed with a plurality of threaded holes, and each threaded hole is threadedly connected with a first bolt 4, so as to improve the stability during rotation.

[0041] In the embodiment, the first through hole 101 is arranged in the lateral wall of one end of horizontal rod 1, and the end portion of motor shaft 7 passes through the first through hole 101.

[0042] In the embodiment, the end portion of sleeve 2 is welded with horizontal rod 1, so as to improve the connection strength.

[0043] In the embodiment, the second through hole 102 is arranged in the lateral wall of the other end of horizontal rod 1, the end portion of rotating handle 3 is provided with a screw rod 301, one end of screw rod 301 away from rotating handle 3 passes through the second through hole 102 and extends out of horizontal rod 1, and the part of screw rod 301 extending out of horizontal rod 1 is sleeved with a nut 5.

[0044] In the embodiment, the rotating handle 3 is in a cylindrical shape, the second through hole 102 includes a large-diameter hole and a small-diameter hole from one side of the horizontal rod 1 to the other side, the size of the large-diameter hole is matched with the size of the rotating handle 3, and the size of the small-diameter hole is matched with the size of the screw rod 301.

[0045] The end of the rotating handle 3 can extend into the large-diameter hole and abut against the step surface between the large-diameter hole and the small-diameter hole. In the scheme, the rotating handle 3 extends into the horizontal rod 1 through the large-diameter hole, so that the rotating handle 3 can act on the horizontal rod 1 during manual rotation, thereby improving the stability during rotation. The end of the rotating handle 3 abuts against the step surface between the large-diameter hole and the small-diameter hole, and is tightly connected by tightening of the external nut 5.

[0046] In the embodiment, the rotating handle 3 is further sleeved with an anti-skid sleeve 6 to improve the friction force during hand holding.

[0047] In the embodiment, the anti-skid sleeve 6 is prevented from sliding or even falling along the length direction of the rotating handle 3 by the following measures: the rotating handle 3 is provided with a shaft shoulder 302 at the middle part, the end of the rotating handle 3 away from the horizontal rod 1 is provided with an end cover 303, the diameter of the end cover 303 is greater than the diameter of the rotating handle 3, and the anti-skid sleeve 6 is arranged between the shaft shoulder 302 and the end cover 303.

[0048] In the embodiment, the end cover 303 and the end of the rotating handle 3 are connected by a second bolt 304 to facilitate quick disassembly and assembly of the anti-skid sleeve 6. The end of the rotating handle 3 is provided with a threaded hole at the center to facilitate connection of the second bolt 304.

[0049] As a redundant scheme, the horizontal rod 1 is made of square steel.

[0050] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A manual auxiliary tower crane slewing tool, characterized in that, include: Horizontal bar (1); Sleeve (2), the end of which is fixed to one side wall of the crossbar (1) and perpendicular to the crossbar (1), the inner diameter of the sleeve (2) and the outer diameter of the motor shaft (7) are matched; Rotate the handle (3), the end of the handle (3) is fixed to the side wall of the other end of the crossbar (1), and the sleeve (2) and the handle (3) are respectively located on both sides of the crossbar (1); The sleeve (2) has a threaded through hole on its side wall, and a first bolt (4) is threadedly connected to the threaded through hole. The end of the first bolt (4) extends into the sleeve (2) and is used to extend into the groove on the side wall of the motor shaft (7).

2. The manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The sleeve (2) has several threaded through holes evenly distributed around its side wall, and each of the threaded through holes is threaded with a first bolt (4).

3. The manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The crossbar (1) has a first through hole (101) on one side wall, which is used for the end thin shaft of the motor shaft to pass through.

4. The manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The sleeve (2) end is welded to the crossbar (1).

5. A manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The other end of the crossbar (1) has a second through hole (102) on its side wall. The end of the rotating handle (3) has a screw (301). The end of the screw (301) away from the rotating handle (3) passes through the second through hole (102) and extends out of the crossbar (1). The extended part of the screw (301) is fitted with a nut (5).

6. A manual auxiliary tower crane slewing tool according to claim 5, characterized in that, The rotating handle (3) is cylindrical. The second through hole (102) from one side of the crossbar (1) to the other side includes a large diameter hole and a small diameter hole in sequence. The size of the large diameter hole is adapted to the size of the rotating handle (3), and the size of the small diameter hole is adapted to the size of the screw (301). The end of the rotating handle (3) can extend into the large-diameter hole and abut against the stepped surface between the large-diameter hole and the small-diameter hole.

7. A manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The rotating handle (3) is also fitted with an anti-slip sleeve (6).

8. A manual auxiliary tower crane slewing tool according to claim 7, characterized in that, The rotating handle (3) has a shoulder (302) in the middle and an end cap (303) on the end of the rotating handle (3) away from the crossbar (1). The diameter of the end cap (303) is larger than the diameter of the rotating handle (3). The anti-slip sleeve (6) is disposed between the shoulder (302) and the end cap (303).

9. A manual auxiliary tower crane slewing tool according to claim 8, characterized in that, The end cap (303) and the rotating handle (3) are connected by a second bolt (304).

10. A manual auxiliary tower crane slewing tool according to claim 1, characterized in that, The crossbar (1) is made of square steel.

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