Torque applying auxiliary device

Abstract

The utility model discloses a torque applying auxiliary device, and belongs to the technical field of rail transit vehicle manufacturing. The upper part of the bottom frame is fixedly connected with a base bracket; a wrench fixing seat is inserted in the top of the base support and can move up and down relative to the base support. Supports are fixedly connected to the positions, located on the two sides of the base support, of the bottom frame, a steel wire rope penetrating through the base support is connected between the two supports, a pulley connected with the steel wire rope is arranged on the side portion of the wrench fixing base, the top end of at least one support is rotationally connected with a take-up and pay-off wheel driving the steel wire rope to take up or pay off, and the take-up and pay-off wheel is provided with a locking mechanism locking the rotating position of the take-up and pay-off wheel. In the working state, the winding and unwinding wheel unwinds the steel wire rope, the wrench fixing base descends, the winding and unwinding wheel winds the steel wire rope, and the wrench fixing base ascends, so that the wrench fixing base bears the torque wrench to be close to a fastener, and the device has the advantages of being convenient to use, effectively improving working efficiency and reducing physical consumption of operators.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit vehicle manufacturing technical field especially relates to a torque exerting auxiliary device. BACKGROUND

[0002] There are many bolts in the production process of rail transit vehicles, and the torque exerted by the bolts is large, in order to achieve the operable condition, so the length of the torque wrench used also increases, and the bogie installation bolt requires a torque of 900Nm, and the length of the torque wrench reaches 130cm, and the weight is 20kg.

[0003] Element one: the height of the bogie installation bolt from the ground is about 100cm, the installation direction of the bolt is from bottom to top, the sleeve of the torque wrench will be separated from the bolt due to the influence of gravity, so that the staff cannot normally exert the torque.

[0004] Element two: during the torque exerting process, the contact part of the sleeve and the outer hexagonal bolt will also be unable to be in close contact due to the heavy wrench, and gaps are prone to occur, which will cause damage to the edge surface profile of the outer hexagonal bolt and the internal structure of the sleeve due to insufficient contact.

[0005] Element three: the torque wrench is too long, the hands contact the end of the wrench when exerting torque, and the distance from the front end of the sleeve to the end is too long, and the torque wrench sleeve and the bolt to which the torque is exerted are separated and fall off due to the torsion force in the force exerting process, and the staff's body will be injured due to the excessive force. Once the above three elements are not controlled in place and exceed the maximum load bearing capacity, it is easy to cause the service life to be shortened, the staff to be injured, the processing parts to be damaged, and the edge practicability and aesthetics of the part to which the torque is exerted to be affected.

[0006] The existing operation mode is as follows: one person needs to squat directly below the bolt to which the torque is exerted, holds the sleeve at the front end of the torque wrench with hands, ensures that the sleeve of the torque wrench and the bolt to which the torque is exerted will not be separated due to the influence of gravity, one person holds the end of the torque wrench with both hands, stands in the shape of eight characters, places the wrench on the abdomen, and exerts force in the horizontal direction. Such construction method seriously wastes personnel and has low production efficiency;

[0007] Therefore, in view of the above problems, the utility model provides a torque exerting auxiliary device which is helpful to improve work efficiency and reduce physical consumption of operators. UTILITY MODEL CONTENT

[0008] The utility model discloses a torque exertion auxiliary device which is used for improving work efficiency, prolonging service life of torque wrench and sleeve, reducing abrasion of tools and bolt surface, improving production efficiency, reducing overconsumption of staff physical ability and saving personnel cost.

[0009] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme.

[0010] The utility model discloses a torque exertion auxiliary device, including:

[0011] The bottom bracket is fixedly connected with the upper base support;

[0012] The wrench fixing seat is inserted and mounted at the top of the base support, and the wrench fixing seat can be displaced up and down relative to the base support;

[0013] The two brackets are connected with a steel wire rope which penetrates through the base support, and the side of the wrench fixing seat is provided with a pulley which is connected with the steel wire rope, wherein the top end of at least one bracket is rotatably connected with a winding and unwinding wheel which drives the steel wire rope to be wound or unwound, and the winding and unwinding wheel is provided with a locking mechanism which locks the rotation position of the winding and unwinding wheel;

[0014] In the working state, the winding and unwinding wheel unwinds the steel wire rope, the wrench fixing seat descends, the winding and unwinding wheel winds the steel wire rope, and the wrench fixing seat ascends, so that the wrench fixing seat carries the torque wrench to be close to the fastener.

[0015] Further, the base support is provided with a sliding groove, the steel wire rope penetrates through the base support through the sliding groove, and the two sides of the wrench fixing seat are provided with the pulley.

[0016] Further, the top end of the wrench fixing seat is rotatably connected with a base, and the base is provided with a positioning groove, and the torque wrench is positioned in the wrench fixing seat position through cooperation of the positioning groove and the torque wrench.

[0017] Further, the bottom bracket includes a lower bottom bracket and an upper bottom bracket which is slidably connected with the lower bottom bracket, and the upper surface of the upper bottom bracket is fixedly connected with the base support and the bracket.

[0018] Further, the two sides of the bottom end of the lower bottom bracket are fixedly connected with support legs which are away from the ground and have an inverted letter "U" shape.

[0019] Further, the steel wire rope is connected with the winding and unwinding wheel, one side of the winding and unwinding wheel is provided with a handle for driving the rotation of the winding and unwinding wheel, the handle is fixedly connected with a gear shaft which is locked with the locking mechanism, and the other side of the winding and unwinding wheel is rotationally connected with a fixed shaft on the support through a bearing.

[0020] Further, the locking mechanism comprises limiting stop pieces which are symmetrically arranged on the support and rotationally connected with the support, a limiting switch which is rotationally connected with the support, and a reset spring for driving the limiting stop pieces to reset.

[0021] The limiting switch is located at the intermediate position of the two limiting stop pieces, the limiting switch is fixedly connected with a cam, and the cam is abutted with the limiting stop pieces.

[0022] One end of the reset spring is connected with the limiting stop piece, and the other end is connected with the support.

[0023] In the above technical solution, the torque applying auxiliary device has the following beneficial effects:

[0024] The torque applying auxiliary device is characterized in that the upper part of the chassis is fixedly connected with a base support, a wrench fixing seat is inserted on the top of the base support, the torque wrench is supported by the wrench fixing seat, the wrench fixing seat can be displaced up and down relative to the base support, the chassis is further fixedly connected with supports, a steel wire rope which penetrates through the base support is connected between the two supports, one of the supports is provided with a winding and unwinding wheel with a locking mechanism, the steel wire rope is wound and unwound by the winding and unwinding wheel, so that the wrench fixing seat carrying the torque wrench is close to the fastener.

[0025] By using the device, the problems that the torque wrench sleeve and the bolt to which torque is applied are separated and fall off due to the torque, and the staff is injured due to excessive force during the operation of the staff are effectively solved, the labor intensity is reduced, one staff is saved in the step of holding the wrench, the operation efficiency is improved, the operation is more convenient, the service life of the torque wrench and the sleeve is improved, the wear of the tool and the bolt surface is reduced, the production efficiency is improved, the overconsumption of the physical strength of the staff is reduced, the safety of the staff is ensured, the utilization rate of the operator is improved, and the personnel cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0027] Figure 1 is a front view of the torque exerting auxiliary device disclosed by the utility model;

[0028] Figure 2 is a left view of the torque exerting auxiliary device disclosed by the utility model;

[0029] Figure 3 is a B position enlarged view of the torque exerting auxiliary device disclosed by the utility model;

[0030] Figure 3a is Figure 3 top view;

[0031] Figure 3b is 3 another working state schematic view;

[0032] Figure 4 is a C position enlarged view of the torque exerting auxiliary device disclosed by the utility model;

[0033] Figure 5 is a D position enlarged view of the torque exerting auxiliary device disclosed by the utility model;

[0034] Figure 6 is a base top view of the wrench fixing seat of the torque exerting auxiliary device disclosed by the utility model.

[0035] Mark explanation:

[0036] 1, wrench fixing seat; 2, base support; 3, folding wheel; 4, first support; 5, second support; 6, upper chassis; 7, lower chassis; 8, supporting leg; 9, steel wire rope; 10, pulley;

[0037] 101, positioning groove;

[0038] 301, handle; 302, return spring; 303, gear shaft; 304, bearing; 305, limit stop; 306, limit switch;

[0039] 801, crossbeam; 802, jackscrew. Specific implementation

[0040] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.

[0041] Referring to Figure 1 , 2 As shown;

[0042] The utility model discloses a torque exerting auxiliary device, which comprises a chassis, a wrench fixing seat 1, a base support 2, a folding wheel 3, a steel wire rope 9 and a pulley 10.

[0043] The bottom frame upper part is fixedly connected with a base support 2, a wrench fixing base 1 is inserted and assembled on the top of the base support 2, and the wrench fixing base 1 can be displaced upward and downward relative to the base support 2, wherein the bottom frame is fixedly connected with supports on both sides of the base support 2, and the two supports are connected with a steel wire rope 9 penetrating through the base support 2, and pulleys 10 connected with the steel wire rope 9 are arranged on both sides of the wrench fixing base 1, wherein at least one end of the support is provided with a take-up reel 3 for driving the steel wire rope 9 to be wound or unwound, and the take-up reel 3 is provided with a locking mechanism for locking the rotating position of the take-up reel 3;

[0044] In the working state, the take-up reel 3 unwinds the steel wire rope 9, the wrench fixing base 1 descends, the take-up reel 3 winds the steel wire rope 9, and the wrench fixing base 1 ascends, so that the wrench fixing base 1 carrying the torque wrench approaches the fastener, and when the wrench fixing base 1 reaches the specified position, the take-up reel 3 is locked by the locking mechanism to limit the take-up reel 3 to continue winding or unwinding.

[0045] Preferably, the base support 2 is provided with a sliding groove, the steel wire rope 9 penetrates through the base support 2 through the sliding groove, and the pulleys 10 are arranged on both sides of the wrench fixing base 1.

[0046] Referring to Figure 6 Preferably, the top end of the wrench fixing base 1 is rotatably connected with a base, that is, the base of the wrench fixing base 1 can rotate relative to the base support 2, the base is provided with a positioning groove 101, and the positioning groove 101 is used for positioning the torque wrench in the position of the wrench fixing base 1 together with the torque wrench to ensure the stability of the torque wrench in use.

[0047] Referring to Figure 1 Preferably, the base support 2 is provided with a sliding groove, the steel wire rope 9 penetrates through the base support 2 through the sliding groove, and the pulleys 10 are arranged on both sides of the wrench fixing base 1.

[0048] Preferably, the bottom frame includes a lower bottom frame 7 and an upper bottom frame 6.

[0049] The upper surface of the lower bottom frame 7 and the lower surface of the upper bottom frame 6 are connected and matched through a sliding groove and a sliding rail to realize the sliding connection between the lower bottom frame 7 and the upper bottom frame 6, and the sliding connection between the upper bottom frame 6 and the lower bottom frame 7 facilitates the transfer of the working position of the wrench fixing base 1, the upper surface of the upper bottom frame 6 is fixedly connected with the base support 2 and the supports, and the wrench fixing base 1 is inserted and assembled on the base support 2, wherein the supports include a first support 4 and a second support 5, the first support 4 and the second support 5 are distributed on both sides of the base support 2, and specifically, one end of the steel wire rope 9 is connected with the first support 4, and the other end is connected with the take-up reel 3 at the top end of the second support 5, and the steel wire rope is wound or unwound through the take-up reel 3.

[0050] Referring to Figure 3 , 3a Preferably, the base support 2 is provided with a sliding groove, the steel wire rope 9 penetrates through the base support 2 through the sliding groove, and the pulleys 10 are arranged on both sides of the wrench fixing base 1.

[0051] The winding and unwinding wheel 3 comprises a handle 301, a locking mechanism, a gear shaft 303 and a bearing 304, wherein the locking mechanism comprises a return spring 302, a limiting baffle 305a, a limiting baffle 305b and a limiting switch 306;

[0052] One end of the steel wire rope 9 is connected with the winding and unwinding wheel 3, and the winding and unwinding wheel 3 is provided with the handle 301 for driving the rotation of the winding and unwinding wheel 3, and the winding and unwinding wheel 307 is concentrically installed with the gear shaft 303 and the bearing 304;

[0053] Referring to Figure 3a , the winding and unwinding wheel 3 is rotationally connected with a fixed shaft fixed on the second support 5 through the bearing 304, the gear shaft 303 is fixedly connected with the handle 301, the gear shaft 303 is driven to rotate by the handle 301, the winding and unwinding wheel 3 rotates synchronously with the gear shaft 303, and the winding and unwinding wheel 3 takes the gear shaft 303 as a rotation center;

[0054] Referring to Figure 3 , the limiting baffles comprise two, i.e., the limiting baffle 305a and the limiting baffle 305b;

[0055] The bottom ends of the two limiting baffles are rotationally connected with the second support 5, the top ends of the limiting baffles can extend into the gear groove of the gear shaft 303, the second support 5 is rotationally connected with the limiting switch 306 at the upper part of the rotation center of the limiting baffles and at the intermediate position between the two limiting baffles, and the limiting switch 306 is in contact with the two limiting baffles through a cam, as Figure 3 shown, when the cam of the limiting switch 306 is symmetrically arranged at the intermediate position between the two limiting baffles during use, the top ends of the limiting baffles are separated from the gear groove of the gear shaft 303, at this time, the winding and unwinding wheel 3 can rotate clockwise and counterclockwise, and the winding and unwinding wheel 3 can both wind and unwind the rope;

[0056] Referring to Figure 3b , when the limiting switch 306 drives the cam to rotate counterclockwise, the bottom end of the cam is in contact with the limiting baffle 305b, the top end of the cam is in contact with the limiting baffle 305a, and the top end of the limiting baffle 305a extends into the gear groove of the gear shaft 303, at this time, the winding and unwinding wheel 3 can only rotate clockwise, and the winding and unwinding wheel 3 is in the state of winding the rope;

[0057] Similarly, when the limiting switch 306 drives the cam to rotate clockwise, the bottom end of the cam is in contact with the limiting baffle 305a, the top end of the cam is in contact with the limiting baffle 305b, and the top end of the limiting baffle 305b extends into the gear groove of the gear shaft 303, at this time, the winding and unwinding wheel 3 can only rotate counterclockwise, and the winding and unwinding wheel 3 is in the state of unwinding the rope;

[0058] Referring to Figure 4 , 5 , as shown:

[0059] Preferably, the bottom ends of the two sides of the lower bottom frame 7 are fixedly connected with the support legs 8 which are configured in an inverted U-shaped structure and away from the ground;

[0060] The support leg 8 comprises a telescopic cross beam 801, and a first vertical beam and a second vertical beam are fixedly connected at both ends of the cross beam 801 respectively, the first vertical beam is fixedly connected with the lower base 7 through a welding process, and the second vertical beam can be detachably fixedly connected with the lower base 7 through cooperation of a bolt and a wing nut (as shown in Figure 4 The support leg 8 comprises a telescopic cross beam 801, and a first vertical beam and a second vertical beam are fixedly connected at both ends of the cross beam 801 respectively, the first vertical beam is fixedly connected with the lower base 7 through a welding process, and the second vertical beam can be detachably fixedly connected with the lower base 7 through cooperation of a bolt and a wing nut (as shown in

[0061] Referring to Figure 5 The cross beam 801 comprises a first sleeve pipe and a second sleeve pipe sleeved in the first sleeve pipe, a jackscrew 802 is installed on the first sleeve pipe, the second sleeve pipe is tightly pressed through the jackscrew 802, and the length of the cross beam is locked.

[0062] In the above technical scheme, the torque applying auxiliary device provided by the utility model has the following advantages:

[0063] The wrench fixing seat 1 is combined with the torque wrench, the torque wrench sleeve is aligned and fitted with the fastener through adjustment of the winding and unwinding wheel 3 and the sliding lower base 6, the winding and unwinding wheel 3 is locked through the limit switch 306, the bottom end of the cam contacts the limit stop 305b, the top end contacts the limit stop 305a, the top end of the limit stop 305a extends into the gear groove of the gear shaft 303, and the winding and unwinding wheel 3 can only rotate clockwise, and the winding and unwinding wheel 3 is in a winding state;

[0064] The support leg 8 is adjusted and fixed, the base of the wrench fixing seat 1 can rotate relative to the base support 2 when the torque wrench applies torque, after torque applied to one bolt, the limit switch 306 drives the cam to rotate clockwise, the bottom end of the cam contacts the limit stop 305a, the top end contacts the limit stop 305b, the top end of the limit stop 305b extends into the gear groove of the gear shaft 303, at this time, the winding and unwinding wheel 3 can only rotate counterclockwise, the winding and unwinding wheel 3 is in an unwinding state, the height of the wrench fixing seat 1 is adjusted through the winding and unwinding wheel 3, the winding and unwinding wheel 3 is locked through the limit switch 306 and can only be in a winding state, the upper base 6 is pushed to move the device to the next bolt, the winding and unwinding wheel 3 performs a winding step, and the bolt is fastened.

[0065] The above only describes certain exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled persons in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A torque application assist device characterized by, The utility model relates to a torque wrench fixing device, including: The bottom bracket of upper part fixedly connected with the base support (2); The wrench fixed base (1) is inserted on the top of the base support (2), and the wrench fixed base (1) can be displaced up and down relative to the base support (2); Wherein, the bottom bracket is fixedly connected with the support on both sides of the base support (2), and the steel wire rope (9) penetrating through the base support (2) is connected between the two supports, the side of the wrench fixed base (1) is equipped with the pulley (10) connected with the steel wire rope (9), wherein at least one end of the support is rotatably connected with the take-up reel (3) driving the steel wire rope (9) winding or unwinding, the take-up reel (3) has locking mechanism locking its rotating position; In the working state, the take-up reel (3) unwinds the steel wire rope (9), the wrench fixed base (1) descends, the take-up reel (3) winds the steel wire rope (9), and the wrench fixed base (1) rises, so that the wrench fixed base (1) carries torque wrench close to fastener.

2. A torque application assist device according to claim 1, characterised in that ； The base support (2) is provided with a sliding groove, the steel wire rope (9) penetrates through the base support (2) through the sliding groove, and the pulley (10) is installed on both sides of the wrench fixed base (1).

3. A torque-assisting device according to claim 1, characterized in that ； The top of the wrench fixed base (1) is rotatably connected with a base, the base is provided with a positioning groove (101), and the torque wrench is positioned in the wrench fixed base (1) position by cooperating with the positioning groove (101) and the torque wrench.

4. A torque-assist device according to claim 1, characterized in that ； The bottom bracket includes a lower bottom bracket (7) and an upper bottom bracket (6) slidably connected with the lower bottom bracket (7), and the upper bottom bracket (6) is fixedly connected with the base support (2) and the support on the upper surface.

5. The torque application assisting device according to claim 4, characterized in that; The lower bottom bracket (7) is fixedly connected with support legs (8) on both sides of the bottom end, and the support legs (8) are configured in an inverted letter Z shape away from the ground.

6. A torque application assist device according to claim 1, In addition, the torque wrench fixing device has the following beneficial effects: The steel wire rope (9) is connected with the take-up reel (3), one side of the take-up reel (3) is provided with a handle (301) driving the rotation thereof, the handle (301) is fixedly connected with a gear shaft (303) locked with the locking mechanism, and the other side of the take-up reel (3) is rotatably connected with a fixed shaft on the support through a bearing (304).

7. A torque application assist device according to claim 6, characterised in that ； The locking mechanism includes limit stop plates symmetrically arranged on the support and rotatably connected with the support, a limit switch (306) rotatably connected with the support, and a reset spring (302) driving the limit stop plates to reset; The limit switch is located between the two limit stop plates, the limit switch (306) is fixedly connected with a cam, and the cam abuts against the limit stop plates; One end of the reset spring (302) is connected with the limit stop plates, and the other end is connected with the support.

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