Hydraulic impact wrench

Abstract

The utility model relates to the technical field of impact wrenches, and discloses a hydraulic impact wrench which comprises a main shell, a handheld groove, a hydraulic shell adjusting button, a telescopic shell, a motor and a reduction gear ring and further comprises a rotor shaft, a fixing block, a butterfly thread ring, a switching disassembly assembly and a hydraulic control assembly. A hydraulic shell is fixedly connected to the top of the main shell, an adjusting button is movably connected to the top of the hydraulic shell, a telescopic shell is arranged at the bottom of the handheld groove, a motor is arranged in the telescopic shell, and a reduction gear ring is arranged in the telescopic shell. According to the detachable bolt, the nut fixing device can be used for disassembling the bolt through the arranged thread sleeve, the nut can be disassembled by installing the butterfly thread ring and the nut fixing ring, and the bolt with the suitable disassembling size can be replaced through disassembling, so that the detachable bolt has diversity and comprehensiveness in disassembling of the bolt, the convenience is improved, and the disassembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of impact wrench, especially to a hydraulic impact wrench. BACKGROUND

[0002] The hydraulic impact wrench is a kind of tool that provides large torque output with hydraulic power, mainly used for the installation and disassembly of bolts, and it is usually suitable for the fastening or loosening of bolts larger than one inch. The following are some detailed information about the hydraulic impact wrench.

[0003] According to the impact wrench (authorization announcement number: CN 219404184 U) disclosed by the patent network, it is described that "the utility model discloses an impact wrench, which comprises a shell, a striking rod, a counterweight hammer head, a spring, a central shaft, a reduction gearbox, a mounting bearing and a motor, wherein the mounting bearing and the inner tooth ring bearing are arranged in space overlapping, the sun gear is engaged with the planetary gear after passing through the mounting bearing, the spring is located between the counterweight hammer head and the reduction gearbox, the planet carrier is a stepped planet carrier, and the diameter of the large end of the planet carrier is not less than the diameter of the spring"

[0004] According to the above description, the applicant believes that there are the following problems:

[0005] During use, the device is driven by the motor to rotate the central shaft, which makes the inner tooth ring bearing and the inner tooth ring rotate together to disassemble the bolt. When using the impact wrench, different types of bolts may be encountered. The device uses a handle to disassemble the bolt, and the disassembly method is relatively single, which is inconvenient to use and reduces the disassembly efficiency. Therefore, a hydraulic impact wrench needs to be improved to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to overcome the problem that the hydraulic impact wrench cannot be applied to the disassembly of various fixed bolts.

[0007] The technical scheme of the utility model is as follows: a hydraulic impact wrench, which comprises a main shell, a handle slot, a hydraulic shell adjusting button, a telescopic shell, a motor, a reduction gear ring, a rotor shaft, a fixed block, a butterfly thread ring, a switching disassembly assembly and a hydraulic control assembly. The handle slot is arranged in the main shell, the hydraulic shell is fixedly connected to the top of the main shell, the adjusting button is movably connected to the top of the hydraulic shell, the telescopic shell is arranged at the bottom of the handle slot, the motor is arranged in the telescopic shell, the reduction gear ring is arranged in the telescopic shell, the switching assembly is arranged in the telescopic shell, the hydraulic control assembly is arranged in the main shell, the rotor shaft is arranged in the telescopic shell, the fixed block is fixedly connected to the outside of the rotor shaft, the butterfly thread ring is arranged on the outside of the fixed block, and the threads on the outside of the butterfly thread ring are connected with the threads in the thread sleeve.

[0008] Preferably, the main shell is set to protect the internal operation, the hand slot is set outside the main shell, so that the device is more convenient to take, has stability, the hydraulic shell is set to provide hydraulic space for the hydraulic equipment, so that the equipment can operate normally, the adjusting button is set to start the equipment, so that the equipment can be controlled, the telescopic shell is set to protect the telescopic component, so that it is not easy to cut the hand, the motor is set to drive the rotor shaft to rotate, and the speed reduction gear ring is set to prevent the motor from rotating too fast.

[0009] Preferably, the telescopic shell is provided with a sliding groove at the corresponding position of the speed reduction gear ring, and the speed reduction gear ring rotates in the sliding groove. The sliding groove is set in the telescopic shell at the corresponding position of the speed reduction gear ring, so that the speed reduction gear ring is limited when rotating in the sliding groove.

[0010] Preferably, the switching and dismounting component includes a rotor shaft, which is rotatably connected inside the telescopic shell. The outer part of the rotor shaft is fixedly connected with a fixed block, the outer part of the fixed block is fixedly connected with a butterfly thread ring, the top of the butterfly thread ring is fixedly connected with a nut holder, and the outer part of the butterfly thread ring is threadedly connected with a threaded sleeve. The top of the threaded sleeve is fixedly connected with a nut fixing ring. The motor is set to drive the rotor shaft to rotate, so that the nut holder rotates to fix the screw.

[0011] Preferably, the telescopic shell is provided with a sliding groove at the corresponding position of the rotor shaft, and the rotor shaft rotates in the sliding groove. The sliding groove is set in the telescopic shell at the corresponding position of the rotor shaft, so that the rotor shaft is limited when rotating in the sliding groove.

[0012] Preferably, the hydraulic control component includes a hydraulic motor, which is arranged inside the hydraulic shell. The output end of the hydraulic motor is fixedly connected with a hydraulic rod, the inside of the hydraulic rod is fixedly connected with a gear shaft, the outside of the gear shaft is rotatably connected with a first gear, the top of the first gear is fixedly connected with a second gear, the second gear is rotatably connected outside the gear shaft, the top of the hydraulic rod is fixedly connected with a fixed limiting frame, the top of the fixed limiting frame is fixedly connected with a limiting ring block, and the hydraulic motor is set to drive the hydraulic rod to move hydraulically, and the limiting ring block and the fixed limiting frame move in the main shell.

[0013] Preferably, the main shell is provided with a sliding groove at the corresponding position of the fixed limiting frame, and the fixed limiting frame slides in the sliding groove. The sliding groove is set in the main shell at the corresponding position of the fixed limiting frame, so that the fixed limiting frame is limited when sliding in the main shell.

[0014] As preferred, the main shell is provided with a sliding slot at the position corresponding to the limiting ring block, and the limiting ring block is movable in the sliding slot, so that the limiting ring block is limited when sliding in the sliding slot.

[0015] The utility model discloses the beneficial effects of:

[0016] 1、Through the threaded sleeve set up, the bolt can be disassembled by the nut fixing device, the nut can be disassembled by the nut fixing ring through the butterfly thread ring, and the bolt of suitable size can be replaced by disassembling, so that the bolt disassembly has diversity and comprehensiveness, the convenience is improved, and the disassembly efficiency is improved.

[0017] 2、Through the motor driving rotor shaft rotation, simultaneously drive fixed limit frame rotation in the first gear and telescopic shell cooperation rotation drive limiting ring block rotation, again through the hydraulic motor drive hydraulic rod telescopic, make limiting ring block with its telescopic shell cooperation rotation to its limit, have controllability, make it have stability and convenience when running. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0019] Figure 2 It is the appearance local section structure schematic diagram of the utility model;

[0020] Figure 3 It is the switching disassembly assembly structure schematic diagram of the utility model;

[0021] Figure 4 It is the hydraulic control assembly structure schematic diagram of the utility model;

[0022] Figure 5 It is the hydraulic control assembly local structure schematic diagram of the utility model.

[0023] The drawings are explained as follows: 1, main shell;2, handshake slot;3, hydraulic shell;4, adjusting button;5, telescopic shell;6, motor;7, reduction gear ring;801, rotor shaft;802, fixed block;803, butterfly thread ring;804, nut fixing device;805, threaded sleeve;806, nut fixing ring;901, hydraulic motor;902, hydraulic rod;903, gear shaft;904, first gear;905, second gear;906, fixed limit frame;907, limiting ring block. DETAILED DESCRIPTION

[0024] The utility model is further explained in connection with the drawings and examples.

[0025] Please refer to Figures 1-5The utility model provides a kind of embodiment: a hydraulic impact wrench, including main casing 1, hand holding groove 2, hydraulic shell 3 adjusting button 4, telescopic casing 5, motor 6, reduction gear ring 7, still including rotor shaft 801, fixed block 802, butterfly screw ring 803, switching disassembly component and hydraulic control component, the inside of main casing 1 is equipped with hand holding groove 2, the top of main casing 1 is fixedly connected with hydraulic shell 3, the top of hydraulic shell 3 is movably connected with adjusting button 4, the bottom of hand holding groove 2 is provided with telescopic casing 5, the inside of telescopic casing 5 is provided with motor 6, the inside of telescopic casing 5 is provided with reduction gear ring 7, switching component is arranged in the inside of telescopic casing 5, hydraulic control component is arranged in the inside of main casing 1, the inside of telescopic casing 5 is provided with rotor shaft 801, the outside of rotor shaft 801 is fixedly connected with fixed block 802, the outside of fixed block 802 is provided with butterfly screw ring 803, the outside of butterfly screw ring 803 is provided with the thread connection of thread and thread sleeve 805 inside, the inside running of main casing 1 has been protected by being provided with, the hand holding groove 2 of being equipped in the outside of main casing 1, so that the device is more convenient when being taken, with stability, the hydraulic space of hydraulic equipment is provided by being provided with hydraulic shell 3, so that its equipment normally operates, the equipment can be controlled by being provided with adjusting button 4 to start equipment, telescopic component is protected by being provided with telescopic casing 5, so that it is not easy to cut hand, the operation rotation of rotor shaft 801 is driven by being provided with motor 6, the rotation of equipment is prevented from being overspeed by being provided with reduction gear ring 7, telescopic casing 5 is provided with sliding groove in the corresponding position of reduction gear ring 7, reduction gear ring 7 rotates in the inside of sliding groove, the sliding groove of being equipped in the inside of telescopic casing 5 in the position of reduction gear ring 7, so that reduction gear ring 7 is limited when rotating in the inside of sliding groove, with limiting effect.

[0026] Please refer to Figures 2-3 In the embodiment, the switching disassembly component includes rotor shaft 801, the rotor shaft 801 is rotatably connected in the inside of telescopic casing 5, the outside of rotor shaft 801 is fixedly connected with fixed block 802, the outside of fixed block 802 is fixedly connected with butterfly screw ring 803, the top of butterfly screw ring 803 is fixedly connected with nut holder 804, the outside of butterfly screw ring 803 is threadedly connected with thread sleeve 805, the top of thread sleeve 805 is fixedly connected with nut fixing ring 806, the rotation of nut holder 804 is driven along with the rotation of rotor shaft 801 by being provided with motor 6, to fix screw, telescopic casing 5 is provided with sliding groove in the corresponding position of rotor shaft 801, rotor shaft 801 rotates in the inside of sliding groove, the sliding groove of being equipped in the inside of telescopic casing 5 in the position of rotor shaft 801, so that rotor shaft 801 is limited when rotating in the inside of sliding groove.

[0027] Please refer to Figures 4-5In the embodiment, the hydraulic control assembly includes a hydraulic motor 901 arranged inside the hydraulic housing 3, the output end of the hydraulic motor 901 is fixedly connected with a hydraulic rod 902, the inside of the hydraulic rod 902 is fixedly connected with a gear shaft 903, the outside of the gear shaft 903 is rotatably connected with a first gear 904, the top of the first gear 904 is fixedly connected with a second gear 905, the second gear 905 is rotatably connected outside the gear shaft 903, the top of the hydraulic rod 902 is fixedly connected with a fixed limiting frame 906, the top of the fixed limiting frame 906 is fixedly connected with a limiting ring block 907, the hydraulic rod 902 is driven by the hydraulic motor 901 to move hydraulically, the limiting ring block 907 and the fixed limiting frame 906 move in the inside of the main housing 1, the main housing 1 is provided with a sliding groove at the position corresponding to the fixed limiting frame 906, the fixed limiting frame 906 slides in the sliding groove, the sliding groove is provided in the main housing 1 at the position corresponding to the fixed limiting frame 906, so that the fixed limiting frame 906 is limited when it slides in the main housing 1, the main housing 1 is provided with a sliding groove at the position corresponding to the limiting ring block 907, the limiting ring block 907 moves in the sliding groove, the sliding groove is provided in the main housing 1 at the position corresponding to the limiting ring block 907, so that the limiting ring block 907 is limited when it slides in the sliding groove.

[0028] When working, the adjusting button 4 is pressed to start, the rotor shaft 801 is driven to rotate by the motor 6, the fixed limiting frame 906 is driven to rotate, the limiting ring block 907 is driven to rotate by the cooperation of the first gear 904 and the telescopic housing 5, the limiting ring block 907 is driven to rotate by the cooperation of the telescopic housing 5 and the hydraulic rod 902, so that the limiting ring block 907 is limited, and the controllability is achieved, when we need to disassemble and replace, the screw is disassembled by the screw cap fixer 804 through the threaded sleeve 805, the nut is disassembled by the nut fixing ring 806 through the installation of the butterfly threaded ring 803, and the screw with a suitable disassembly size can be replaced by disassembly.

[0029] Through the above steps, the screw is disassembled by the screw cap fixer 804 through the threaded sleeve 805, the nut is disassembled by the nut fixing ring 806 through the installation of the butterfly threaded ring 803, and the screw with a suitable disassembly size can be replaced by disassembly, so as to solve the problem that the hydraulic impact wrench cannot be applied to the disassembly of various fixed screws.

Claims

1. A hydraulic impact wrench, comprising a main housing (1), a grip groove (2), a hydraulic housing (3), an adjustment button (4), a telescopic housing (5), a motor (6), and a reduction gear ring (7), characterized in that: It also includes a rotor shaft (801), a fixing block (802), a butterfly threaded ring (803), a switching and disassembly assembly and a hydraulic control assembly. A handle groove (2) is provided inside the main housing (1). A hydraulic housing (3) is fixedly connected to the top of the main housing (1). An adjustment button (4) is movably connected to the top of the hydraulic housing (3). A telescopic housing (5) is provided at the bottom of the handle groove (2). A motor (6) is provided inside the telescopic housing (5). A reduction gear ring (7) is provided inside the telescopic housing (5). The switching assembly is located inside the telescopic housing (5). The hydraulic control assembly... The control assembly is located inside the main housing (1). The switching and disassembly assembly includes a rotor shaft (801), which is rotatably connected inside the telescopic housing (5). A fixing block (802) is fixedly connected to the outside of the rotor shaft (801), a butterfly threaded ring (803) is fixedly connected to the outside of the fixing block (802), a nut retainer (804) is fixedly connected to the top of the butterfly threaded ring (803), a threaded sleeve (805) is threadedly connected to the outside of the butterfly threaded ring (803), and a nut retaining ring (806) is fixedly connected to the top of the threaded sleeve (805).

2. The hydraulic impact wrench according to claim 1, characterized in that: The telescopic housing (5) has a groove at the corresponding position of the reduction gear ring (7), and the reduction gear ring (7) rotates inside the groove.

3. The hydraulic impact wrench according to claim 1, characterized in that: The telescopic housing (5) has a groove at the corresponding position of the rotor shaft (801), and the rotor shaft (801) rotates inside the groove.

4. The hydraulic impact wrench according to claim 1, characterized in that: The hydraulic control assembly includes a hydraulic motor (901), which is located inside the hydraulic housing (3). The output end of the hydraulic motor (901) is fixedly connected to a hydraulic rod (902). A gear shaft (903) is fixedly connected inside the hydraulic rod (902). A first gear (904) is rotatably connected to the outside of the gear shaft (903). A second gear (905) is fixedly connected to the top of the first gear (904). The second gear (905) is rotatably connected to the outside of the gear shaft (903). A fixed limit frame (906) is fixedly connected to the top of the hydraulic rod (902). A limit ring block (907) is fixedly connected to the top of the fixed limit frame (906).

5. The hydraulic impact wrench according to claim 4, characterized in that: The main housing (1) has a groove at the corresponding position of the fixed limiting frame (906), and the fixed limiting frame (906) slides inside the groove.

6. The hydraulic impact wrench according to claim 4, characterized in that: The main housing (1) has a groove at the corresponding position of the limiting ring block (907), and the limiting ring block (907) moves inside the groove.

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