Reamed hole bolt dismounting device under structural space limiting condition

Abstract

The utility model provides a reamed hole bolt dismounting device under the condition of structural space limitation, which comprises a first dismounting device and a second dismounting device, a first baffle plate and a second baffle plate are vertically arranged on the left side and the right side of a limiting base respectively, and the left end of a first hydraulic pump abuts against the first baffle plate; the left end of the first supporting sleeve abuts against the power output end of the first hydraulic pump, a receding round hole is formed in the right end of the first supporting sleeve, a sliding groove is formed in the right end of the second supporting sleeve, the two semicircular buckling sleeves are arranged and spliced into a cylindrical sleeve, the cylindrical sleeve is slidably connected with the sliding groove, and a limiting groove is formed in the cylindrical sleeve. The power output end of the first hydraulic pump abuts against the left end of the first supporting sleeve, the power output end of the second hydraulic pump abuts against the left end of the second supporting sleeve, the limiting block is fixed to the right end of the pull rod and corresponds to the interior of the limiting groove, and the nut is in threaded connection with the left end of the pull rod. And the reamed hole bolt is completely pulled out of the vehicle part.

Description

TECHNICAL FIELD

[0001] The utility model relates to urban rail transit vehicle maintenance technical field, especially relate to a hinge hole bolt dismounting device under the condition of structural space limitation. BACKGROUND

[0002] Urban rail transit vehicle reaches certain years or mileage, needs to carry out maintenance and repair. In the vehicle maintenance process, each overhaul component needs to be disassembled, however, the component installed by the hinge hole bolt is corroded by the bolt and is difficult to dismount due to the environment and time, and the bolt is difficult to apply external force to dismount under the condition of the structural space limitation of part vehicle components, the space between the threaded end of the bolt and the wheel component or other components of the vehicle is very small, the threaded end cannot be knocked to make the bolt exit the vehicle component to the end of the bolt head, therefore, it is necessary to manufacture a hinge hole bolt dismounting device under the condition of structural space limitation to solve the above problems. SUMMARY

[0003] The utility model aims at providing a hinge hole bolt dismounting device under the condition of structural space limitation to solve the problems mentioned in the background art.

[0004] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A hinge hole bolt dismounting device under the condition of structural space limitation, comprising a first dismounting device and a second dismounting device, the first dismounting device comprises a limiting base, a first hydraulic pump and a first support sleeve, the left and right sides of the limiting base are vertically provided with a first baffle and a second baffle respectively, the left end of the first hydraulic pump is in contact with the first baffle and the right end is a power output end, the left end of the first support sleeve is in contact with the power output end of the first hydraulic pump, the right end of the first support sleeve is provided with an empty round hole, the second dismounting device comprises a second support sleeve, a semicircular buckling sleeve, a second hydraulic pump, a pull rod, a limiting block and a nut, the right end of the second support sleeve is provided with a sliding groove, the semicircular buckling sleeve is provided with two groups and is spliced into a cylindrical sleeve, the cylindrical sleeve is slidably connected with the sliding groove, a limiting groove is formed in the cylindrical sleeve, the second hydraulic pump is a hollow hydraulic pump, the power output end of the second hydraulic pump is in contact with the left end of the second support sleeve, the pull rod is sequentially provided through the second hydraulic pump, the second support sleeve and the cylindrical sleeve, the limiting block is fixed to the right end of the pull rod and corresponds to the limiting groove, and the nut is threadedly connected with the left end of the pull rod.

[0006] Further description of the utility model: the nut is provided with two groups.

[0007] Further description of the utility model: the limiting block is threadedly connected with the right end of the pull rod.

[0008] The utility model discloses a beneficial effect is: can under the condition that the hinge hole bolt threaded end one side has no sufficient operating space, utilize the space of one end of head, take out the vehicle component completely with the hinge hole bolt. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the structure diagram of first dismantling device in the utility model,

[0010] Fig. 2 It is the sectional view of first dismantling device in the utility model,

[0011] Fig. 3 It is the structure diagram of second dismantling device in the utility model,

[0012] Fig. 4 It is the sectional view of second dismantling device in the utility model,

[0013] Fig. 5 It is the exploded view of second dismantling device in the utility model,

[0014] Mark explanation:

[0015] 1, first dismantling device, 11, limit base, 111, first baffle, 112, second baffle, 12, first hydraulic pump, 13, first support sleeve, 131, avoid empty round hole, 2, second dismantling device, 21, second support sleeve, 211, sliding slot, 22, half circle buckle sleeve, 221, limit groove, 23, second hydraulic pump, 24, pull rod, 25, limit block, 26, nut, 3, hinge hole bolt, 4, vehicle component. DETAILED DESCRIPTION

[0016] The utility model is further explained in connection with the drawings:

[0017] As Figs. 1 to 5The utility model discloses a hinge hole bolt 3 dismounting device under the structural space restriction condition, including first dismounting device 1 and second dismounting device 2, first dismounting device 1 includes spacing base 11, first hydraulic pump 12 and first support sleeve 13, and the left and right sides of spacing base 11 are vertically provided with first baffle 111 and second baffle 112 respectively, and the left end of first hydraulic pump 12 is in contact with first baffle 111, and the right end is power output end, and the left end of first support sleeve 13 is in contact with the power output end of first hydraulic pump 12, and the right end of first support sleeve 13 is provided with empty round hole 131, and second dismounting device 2 includes second support sleeve 21, semicircle buckling sleeve 22, second hydraulic pump 23, pull rod 24, spacing block 25 and nut 26, the right end of second support sleeve 21 is provided with sliding slot 211, semicircle buckling sleeve 22 sets up two groups and is spliced as cylindrical sleeve, and cylindrical sleeve is slidably connected with sliding slot 211, and the inside of cylindrical sleeve is provided with spacing groove 221, and second hydraulic pump 23 is hollow hydraulic pump, and the power output end of second hydraulic pump 23 is in contact with the left end of second support sleeve 21, and pull rod 24 is successively provided through second hydraulic pump 23, second support sleeve 21 and cylindrical sleeve, and spacing block 25 is fixed at the right end of pull rod 24 and is correspondingly in spacing groove 221, and nut 26 is threadedly connected with the left end of pull rod 24.

[0018] The non-threaded part of the hinge hole bolt 3 is inserted through the vehicle part 4, the bolt is rusted due to the environment and time, it is difficult to pull out from the vehicle part 4, and the threaded end of the hinge hole bolt is insufficient in space and cannot be knocked, therefore, the dismounting device of the design can completely pull out the hinge hole bolt 3 from the vehicle part 4, first, the first dismounting device 1 is used to pull out the head of the hinge hole bolt 3 by a distance, the specific operation is as follows: the limiting base 11 is lifted, the first baffle 111 and the second baffle 112 are respectively located on the left and right sides of the hinge hole bolt 3, then the first hydraulic pump 12 and the first supporting sleeve 13 are placed in sequence on the right side of the first baffle 111, the clearance hole 131 of the first supporting sleeve 13 corresponds to the outer periphery of the head of the hinge hole bolt 3, the first hydraulic pump 12 is started, the power output end gradually extends and drives the first supporting sleeve 13 to abut against the vehicle part 4, as the power output end continues to extend, the second baffle 112 abuts against the threaded end of the hinge hole bolt 3, the power output end continues to extend, the second baffle 112 exerts pressure on the threaded end, so that the hinge hole bolt 3 moves left relative to the vehicle part, until the second baffle 112 contacts the end surface of the vehicle part 4, at this time, the hinge hole bolt 3 is pulled out by a distance, but due to rust, the hinge hole bolt 3 cannot be pulled out by hand, therefore, the second dismounting device 2 is used, the two groups of semicircular clamping sleeves 22 are combined and sleeved on the hinge hole bolt 3 and the end of the pull rod 24, the head of the hinge hole bolt 3 and the limiting block 25 are correspondingly arranged in the limiting groove 221, then the sliding groove 211 of the second supporting sleeve 21 is sleeved on the outer side of the cylindrical sleeve, the left end of the pull rod 24 passes through the left end of the second supporting sleeve 21, then the second hydraulic pump 23 and the nut 26 are sleeved on the left end of the pull rod 24, the nut 26 is tightened, so that the right end of the second supporting sleeve 21 abuts against the vehicle part 4, the second hydraulic pump 23 is started, the power output end of the second hydraulic pump 23 exerts pressure on the vehicle part 4 through the second supporting sleeve 21, as the power output end of the second hydraulic pump 23 extends, the pull rod 24 pulls the head of the hinge hole bolt 3 left through the limiting block 25 and the cylindrical sleeve, and finally the hinge hole bolt 3 is completely pulled out. The advantage of the design is that the hinge hole bolt 3 can be completely pulled out of the vehicle part 4 by using the space at one end of the head under the condition that there is not enough operating space on one side of the threaded end of the hinge hole bolt 3.

[0019] The two groups of nuts 26 can enhance the stability of the connection of the second dismounting device 2, avoid the single nut 26 from being ejected due to failure, and improve the safety.

[0020] The limiting block 25 is threadedly connected with the right end of the pull rod 24. By rotating the limiting block 25, the pulling distance of the hinge hole bolt 3 can be adjusted, so as to adapt to bolts of different length specifications for use.

[0021] The above is not any limit to the technical range of the utility model, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belong to the range of the technical scheme of the utility model.

Claims

1. A reamer bolt disassembly device under structural space constraints, characterized in that: Including first dismounting device and second dismounting device, the first dismounting device includes spacing base, first hydraulic pump and first support sleeve, the spacing base is vertically provided with first baffle and second baffle respectively on the left and right sides, the left end of the first hydraulic pump is in contact with the first baffle and the right end is power output end, the left end of the first support sleeve is in contact with the power output end of the first hydraulic pump, the right end of the first support sleeve is provided with empty round hole, the second dismounting device includes second support sleeve, semicircle buckle sleeve, second hydraulic pump, pull rod, limiting block and nut, the right end of the second support sleeve is provided with sliding slot, the semicircle buckle sleeve is provided with two groups and is spliced into cylindrical sleeve, the cylindrical sleeve is slidably connected with the sliding slot, the limiting slot is formed in the cylindrical sleeve, the second hydraulic pump is hollow hydraulic pump, the power output end of the second hydraulic pump is in contact with the left end of the second support sleeve, the pull rod is sequentially provided through the second hydraulic pump, the second support sleeve and the cylindrical sleeve, the limiting block is fixed on the right end of the pull rod and corresponds to the limiting slot, the nut is threadedly connected with the left end of the pull rod.

2. The bolt dismounting device of claim 1, wherein: The nut is provided with two groups.

3. The bolt dismounting device of claim 1, wherein: The limiting block is threadedly connected with the right end of the pull rod.

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