CN115749768A - Small-size sled hair platform truck work arm - Google Patents
Small-size sled hair platform truck work arm Download PDFInfo
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- CN115749768A CN115749768A CN202211251926.9A CN202211251926A CN115749768A CN 115749768 A CN115749768 A CN 115749768A CN 202211251926 A CN202211251926 A CN 202211251926A CN 115749768 A CN115749768 A CN 115749768A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to the technical field of mine roadway repair, in particular to a small-sized prying trolley working arm which comprises a prying trolley body, a working arm body and a pin shaft, wherein the working arm body is fixedly arranged on the prying trolley body, the working arm body is formed by combining a breaking hammer, a first spiral swinging oil cylinder, a second spiral swinging oil cylinder, a telescopic inner cylinder, a main arm, a telescopic inner cylinder protective cover, a telescopic inner cylinder circumferential limiting block, a telescopic oil cylinder, a pitching oil cylinder, a main arm rotary seat and a rotary speed reducer, and the rotary speed reducer is arranged on the prying trolley body.
Description
Technical Field
The invention relates to the technical field of mine roadway repair, in particular to a working arm of a small-sized prying trolley.
Background
In the mining process of mine (tunnel, coal mine tunnel excavation, metal mine and other mining), loose stones often appear on the top wall and the side wall of the mine after blasting when the mine hole is excavated, if the stones are not cleaned in time, the stones will have the danger of falling off at any time, and the fallen stones easily smash and hurt workers, thereby bringing a great deal of hidden troubles to the production operation. The method adopted by people is as follows: the workman stands and utilizes the drill rod to pry it off on the shelf of building up, and not only workman's intensity of labour is big like this, and work efficiency is low, and when the condition that appears large tracts of land stone and drop, if the workman too late to dodge, also can bring the potential safety hazard for the workman of construction.
People adopt the prying trolley to clean the stones which can fall off at any time, but the prior prying trolley has the following defects in the using process: 1. when the machine works, the working arm mechanism is unreasonably designed and cannot flexibly rotate, so that a plurality of dead angles cannot be cleaned, and the working efficiency cannot reach an ideal state (a multi-section arm and a breaking hammer adopted by a mainstream hair prying trolley need to repeatedly adjust the postures of the arms to position a target in order to break the target and fall stones); 2. the volume is large, the manufacturing cost is high, and the small-sized mine hole is not suitable for use; the working arm, the dozer blade and the breaking hammer are controlled to work by the hydraulic control valve and the pilot handle, so that the operation is complex and the control precision is low; 3. the spray area and the spray force of the water spray device are not adjustable.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a working arm of a small-sized prying trolley.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a small-size sled hair platform truck work arm, includes sled hair platform truck body, work arm body and round pin axle, work arm body fixed mounting is on sled hair platform truck body, the work arm body is by quartering hammer, first spiral swing hydro-cylinder, second spiral swing hydro-cylinder, flexible inner tube, main arm, flexible inner tube safety cover, flexible inner tube circumference stopper, flexible hydro-cylinder, every single move hydro-cylinder, main arm revolving bed, gyration reduction gear combination form, gyration reduction gear installs on sled hair platform truck body, main arm revolving bed passes through the bolt and installs on gyration reduction gear, the main arm is articulated through round pin axle and main arm seat, both sides every single move the hydro-cylinder through two round pin axles respectively with main arm revolving bed and main arm articulated, the one end of flexible hydro-cylinder is connected through round pin axle and main arm, the other end of flexible hydro-cylinder passes through the bolt and is connected with flexible inner tube, second spiral swing hydro-cylinder installs on flexible inner tube, first spiral swing hydro-cylinder installs on second spiral swing hydro-cylinder, install the quartering hammer on the lateral wall of first spiral swing hydro-cylinder.
As a preferred technical scheme of the present invention, the second spiral oscillating cylinder is formed by combining an oil cylinder portion and a U-shaped frame, the oil cylinder forming the second spiral oscillating cylinder is fixedly mounted on the telescopic inner cylinder through a bracket, the oil cylinder portion forming the second spiral oscillating cylinder and the U-shaped frame portion move relatively, and the U-shaped frame portions are disposed on two sides of the oil cylinder portion.
As a preferred technical solution of the present invention, the first spiral swing cylinder is formed by combining two parts, namely, a cylinder part and a U-shaped frame, the cylinder part constituting the first spiral swing cylinder is fixedly mounted on the U-shaped frame part constituting the second spiral swing cylinder, and the two parts are fixed by bolts, and the U-shaped frame part constituting the first spiral swing cylinder is movably mounted on the cylinder part.
As a preferable technical solution of the present invention, the breaking hammer is fixed to a U-shaped frame portion constituting the first spiral oscillating cylinder by a bolt, the breaking hammer is formed by combining a breaking hammer portion and a water spraying mechanism, and the water spraying mechanism is independently installed on the breaking hammer portion and is independently operated and controlled.
As a preferable technical scheme of the present invention, the telescopic inner cylinder is movably mounted in the main arm in a snap-fit manner, a telescopic inner cylinder circumferential limiting block is fixedly mounted on the main arm, and the telescopic inner cylinder circumferential limiting block and a part of the side wall of the telescopic inner cylinder in the main arm in the snap-fit manner are attached to each other.
As a preferable technical scheme of the invention, a telescopic oil cylinder is arranged in the main arm, a pin shaft is fixedly arranged on the end part of the telescopic oil cylinder, a pin shaft bolt on the end part of the telescopic oil cylinder is arranged on the side wall of the telescopic inner cylinder, driving lamps are symmetrically arranged on two sides of the main arm rotating seat, a telescopic inner cylinder protective cover is arranged outside the telescopic inner cylinder, the end part of the telescopic inner cylinder protective cover and the side wall of the telescopic inner cylinder are movably arranged together, and the telescopic inner cylinder protective cover is jointed with the side wall of the main arm.
As a preferred technical scheme of the invention, the rotary speed reducer is formed by combining a motor part, a rotating disc and an external fixed disc, the motor part is arranged in the external fixed disc part, the rotating disc part is fixedly arranged on the motor part, the motor part provides power for the rotating disc part, the rotating disc part seals the external fixed disc part, the main arm rotary seat is formed by combining a triangular bracket part and a circular mounting disc part, the mounting disc part forming the main arm rotary seat is fixedly arranged on the rotating disc part forming the rotary speed reducer, the mounting disc part and the circular mounting disc part are fixed by bolts, and two pin shafts are movably arranged on a triangular bracket forming the main arm rotary seat.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. this device passes through the existence of every single move hydro-cylinder and flexible hydro-cylinder, the every single move hydro-cylinder realizes promotion and the whereabouts to the main arm, let equipment can carry out the breakage to the stone of co-altitude, flexible hydro-cylinder realizes the flexible to the quartering hammer, the realization is to the breakage of stone, at the same working range, under the same impact load, the arm body of working withdraws fold condition length minimum, thereby compact structure realizes sled hair platform truck overall dimension length, width and the reduction of height, sled hair platform truck overall receives the tunnel size to influence little trafficability characteristic good, the arm during operation action is minimum, can quick accurate location.
2. This device can let the quartering hammer carry out accurate location breakage in a hemisphere face through the hydraulic drive of first spiral swing hydro-cylinder and second spiral swing hydro-cylinder, and broken precision is strong, and the bearing pressure ability reinforce of first spiral swing hydro-cylinder and second spiral swing hydro-cylinder, can guarantee broken working strength.
3. A telescopic inner cylinder protective cover is arranged outside the telescopic inner cylinder to protect a pitching oil cylinder and a telescopic oil cylinder on the equipment, so that the safety protection capability and reliability of the equipment are improved.
4. When equipment works, the motor in the rotary speed reducer is started, the motor drives the main arm rotary seat to rotate on the rotary speed reducer, preliminary adjustment of the working direction of the working arm body is achieved, and normal work of the equipment is guaranteed.
5. Through the bolt, with rotary reducer fixed mounting on sled hair platform truck body, realize the equipment between work arm body and the sled hair platform truck body, after the installation, the stability of equipment is stronger, and work arm body during operation can not rock, has guaranteed the job stabilization nature of work arm body.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic side plan view of the working arm body according to the present invention;
FIG. 3 is a schematic top plan view of the working arm body of the present invention;
fig. 4 is a schematic perspective view of the working arm body according to the present invention.
Wherein: 1. a crowing trolley body; 2. a working arm body; 11. a breaking hammer; 12. a first spiral swing cylinder; 13. a second spiral swing cylinder; 14. an inner telescopic cylinder; 15. a main arm; 16. a telescopic inner cylinder protective cover; 17. a circumferential limiting block of the telescopic inner cylinder; 18. a telescopic oil cylinder; 19. a pitching oil cylinder; 21. a main arm rotary base; 22. a slewing reducer; 23. a running light; 24. and (7) a pin shaft.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in fig. 1, 2, 3 and 4, the working arm of the small-sized prying trolley comprises a prying trolley body 1, a working arm body 2 and a pin 24, wherein the working arm body 2 is fixedly installed on the prying trolley body 1, the working arm body 2 is formed by combining a breaking hammer 11, a first spiral swing cylinder 12, a second spiral swing cylinder 13, a telescopic inner cylinder 14, a main arm 15, a telescopic inner cylinder protective cover 16, a telescopic inner cylinder circumferential limiting block 17, a telescopic cylinder 18, a pitching cylinder 19, a main arm rotary seat 21 and a rotary reducer 22, the rotary reducer 22 is installed on the prying trolley body 1, the main arm rotary seat 21 is installed on the rotary reducer 22 through a bolt, the main arm 15 is hinged with the rotary seat 21 through the pin 24, the pitching cylinders 19 on two sides are respectively hinged with the main arm rotary seat 21 and the main arm 15 through two pins 24, one end of the telescopic cylinder 18 is connected with the main arm 15 through the pin 24, the other end of the telescopic cylinder 18 is connected with the telescopic inner cylinder 14 through a bolt, the second spiral swing cylinder 13 is installed on the telescopic inner cylinder 14, and the side wall of the first spiral swing cylinder 12 is installed on the side wall of the first spiral swing cylinder 11.
When the main arm 15 is adjusted, the telescopic oil cylinder 18 is started, a piston rod of the telescopic oil cylinder 18 drives the telescopic inner cylinder 14 to move in a telescopic manner in the main arm 15, the movement of the telescopic inner cylinder 14 in the main arm 15 can drive the position of the breaking hammer 11 to move, the breaking hammer 11 can stretch and retract, the breaking hammer 11 can move back and forth, impact breaking on a designated object is facilitated, when the telescopic inner cylinder 14 stretches in the main arm 15, the telescopic inner cylinder circumferential limiting block 17 can limit the telescopic inner cylinder 14, reverse thrust generated by impact is prevented, normal movement of the telescopic inner cylinder 14 is influenced, the end part of the telescopic oil cylinder 18 is installed on the main arm 15 through the pin shaft 24, the telescopic oil cylinder 18 can move normally, when the breaking hammer 11 impacts, water can be sprayed on the end part of the breaking hammer 11, the impacting position is moistened, dust removal is carried out, and the breaking is more convenient, when the positions with different heights are required to be impacted and crushed, the pitching oil cylinder 19 is started, a piston rod of the pitching oil cylinder 19 extends out, a pin shaft 24 on the end part of the pitching oil cylinder 19 can rotate on the main arm rotating seat 21, the pitching oil cylinder 19 is controlled to rotate, meanwhile, the piston rod of the pitching oil cylinder 19 pushes the main arm 15 to be lifted, and the equipment is lifted, and the pitching oil cylinder 19 and the telescopic oil cylinder 18 are arranged, so that the pitching oil cylinder 19 can lift and fall the main arm 15, the equipment can crush stones with different heights, the telescopic oil cylinder 18 can stretch the crushing hammer 11, so that stones are crushed, the working arm body 2 is retracted into a fully-folded state within the same working range under the same impact load, the length is minimum, the structure is compact, the overall size length, the width and the height of the hair prying trolley are reduced, and the overall influence of the roadway size is small, and the passing performance is good, the working arm has the least operation action and can be positioned quickly and accurately during working.
The second spiral swing cylinder 13 is formed by combining a cylinder part and a U-shaped frame, the cylinder forming the second spiral swing cylinder 13 is fixedly arranged on the telescopic inner cylinder 14 through a support, the cylinder part forming the second spiral swing cylinder 13 and the U-shaped frame part move relatively, and the U-shaped frame parts are arranged on two sides of the cylinder part.
The first spiral swing cylinder 12 is formed by combining a cylinder part and a U-shaped frame, the cylinder part forming the first spiral swing cylinder 12 is fixedly arranged on the U-shaped frame part forming the second spiral swing cylinder 13, the fixing mode of the two is bolt fixing, and the U-shaped frame part forming the first spiral swing cylinder 12 is movably arranged on the cylinder part.
The breaking hammer 11 is fixed on a U-shaped frame portion forming the first spiral swing cylinder 12 through a bolt, the breaking hammer 11 is formed by combining the breaking hammer portion and a water spraying mechanism, the water spraying mechanism is independently installed on the breaking hammer portion, and the breaking hammer portion and the water spraying mechanism are independently controlled.
When the specific working direction of the breaking hammer 11 needs to be adjusted, by starting the second spiral swing oil cylinder 13, the second spiral swing oil cylinder 13 drives the breaking hammer 11 to rotate in the vertical direction, the maximum adjustment angle is one hundred eighty degrees, the breaking hammer 11 is rotated in the horizontal direction by starting the first spiral swing oil cylinder 12, the maximum adjustment angle is also one hundred eighty degrees, the working range of the breaking hammer 11 is a semicircular ball taking the end part of the telescopic inner cylinder 14 as the center, the working range of the breaking hammer 11 is ensured, the device can accurately position and break the breaking hammer 11 in a hemispherical surface through hydraulic driving of the first spiral swing oil cylinder 12 and the second spiral swing oil cylinder 13, the breaking accuracy is high, the bearing capacity of the first spiral swing oil cylinder 12 and the second spiral swing oil cylinder 13 is high, and the breaking working strength can be ensured.
The telescopic inner cylinder 14 is movably clamped and installed in the main arm 15, a telescopic inner cylinder circumferential limiting block 17 is fixedly installed on the main arm 15, and the part of the side wall, clamped in the main arm 15, of the telescopic inner cylinder circumferential limiting block 17 and the telescopic inner cylinder 14 is attached to each other.
The telescopic oil cylinder 18 is arranged in the main arm 15, a pin shaft 24 is fixedly mounted on the end portion of the telescopic oil cylinder 18, the pin shaft 24 on the end portion of the telescopic oil cylinder 18 is mounted on the side wall of the telescopic inner cylinder 14 through a bolt, driving lamps 23 are symmetrically mounted on two sides of the main arm rotating seat 21, the telescopic inner cylinder protective cover 16 is arranged outside the telescopic inner cylinder 14, the end portion of the telescopic inner cylinder protective cover 16 is movably mounted with the side wall of the telescopic inner cylinder 14, and the telescopic inner cylinder protective cover 16 is attached to the side wall of the main arm 15.
A telescopic inner cylinder protective cover 16 is arranged outside the telescopic inner cylinder 14, and protects a pitching oil cylinder 19 and a telescopic oil cylinder 18 on equipment, so that the safety protection capability and reliability of the equipment are improved.
The rotary speed reducer 22 is formed by combining a motor part, a rotating disc and an outer fixed disc, the motor part is installed in the outer fixed disc part, the rotating disc part is fixedly installed on the motor part, the motor part provides power for the rotating disc part, the rotating disc part seals the outer fixed disc part, the main arm rotary seat 21 is formed by combining a triangular support part and a circular mounting disc part, the mounting disc part forming the main arm rotary seat 21 is fixedly installed on the rotating disc part forming the rotary speed reducer 22, the two parts are fixed by bolts, and two pin shafts 24 are movably installed on the triangular support forming the main arm rotary seat 21.
When equipment is used, need install work arm body 2 on sled hair platform truck body 1, the slewing reducer 22 that will constitute work arm body 2 aligns with the mount pad on sled hair platform truck body 1, with the circular dop block below slewing reducer 22 on sled hair platform truck body 1, through the bolt, with slewing reducer 22 fixed mounting on sled hair platform truck body 1, realize the equipment to between work arm body 2 and the sled hair platform truck body 1, after the installation, equipment's stability is stronger, work arm body 2 during operation can not rock, the job stabilization nature of work arm body 2 has been guaranteed.
When equipment works, the motor in the rotary speed reducer 22 is started, the motor drives the main arm rotary seat 21 to rotate on the rotary speed reducer 22, preliminary adjustment of the working direction of the working arm body 2 is achieved, and normal work of the equipment is guaranteed.
The working principle is as follows:
the first step is as follows: when equipment is used, need install work arm body 2 on sled hair platform truck body 1, the slewing reducer 22 that will constitute work arm body 2 aligns with the mount pad on sled hair platform truck body 1, with the circular dop block below slewing reducer 22 on sled hair platform truck body 1, through the bolt, with slewing reducer 22 fixed mounting on sled hair platform truck body 1, realize the equipment to between work arm body 2 and the sled hair platform truck body 1, after the installation, equipment's stability is stronger, work arm body 2 during operation can not rock, the job stabilization nature of work arm body 2 has been guaranteed.
The second step is that: when equipment works, the motor in the rotary speed reducer 22 is started, the motor drives the main arm rotary seat 21 to rotate on the rotary speed reducer 22, preliminary adjustment of the working direction of the working arm body 2 is achieved, and normal work of the equipment is guaranteed.
The third step: when the specific working direction of the breaking hammer 11 needs to be adjusted, the second spiral swinging oil cylinder 13 is started, the second spiral swinging oil cylinder 13 drives the breaking hammer 11 to rotate in the vertical direction, the maximum adjusting angle of the second spiral swinging oil cylinder is one hundred eighty degrees, the first spiral swinging oil cylinder 12 is started to rotate the breaking hammer 11 in the horizontal direction, the maximum adjusting angle of the second spiral swinging oil cylinder is also one hundred eighty degrees, the working range of the breaking hammer 11 is a semicircular ball taking the end part of the telescopic inner cylinder 14 as the center, and the working range of the breaking hammer 11 is ensured.
The fourth step: when the main arm 15 is adjusted, the telescopic oil cylinder 18 is started, a piston rod of the telescopic oil cylinder 18 drives the telescopic inner cylinder 14 to move in a telescopic manner in the main arm 15, the movement of the telescopic inner cylinder 14 in the main arm 15 can drive the position of the breaking hammer 11 to move, the breaking hammer 11 can stretch and retract, the breaking hammer 11 can move back and forth, impact breaking on a designated object is facilitated, when the telescopic inner cylinder 14 stretches and retracts in the main arm 15, the telescopic inner cylinder circumferential limiting block 17 can limit the telescopic inner cylinder 14, reverse thrust generated by impact is prevented, normal movement of the telescopic inner cylinder 14 is influenced, the end part of the telescopic oil cylinder 18 is installed on the main arm 15 through the pin shaft 24, the telescopic oil cylinder 18 can move normally, when the breaking hammer 11 impacts, water can be sprayed on the end part of the breaking hammer 11, the impacting position is moistened, and dust fall on the breaking position is realized, when the positions with different heights are required to be impacted and crushed, the pitching oil cylinder 19 is started, a piston rod of the pitching oil cylinder 19 extends out, a pin shaft 24 on the end part of the pitching oil cylinder 19 can rotate on the main arm rotating seat 21, the pitching oil cylinder 19 is controlled to rotate, meanwhile, the piston rod of the pitching oil cylinder 19 pushes the main arm 15 to be lifted, and the equipment is lifted, and the pitching oil cylinder 19 and the telescopic oil cylinder 18 are arranged, so that the pitching oil cylinder 19 can lift and fall the main arm 15, the equipment can crush stones with different heights, the telescopic oil cylinder 18 can stretch the crushing hammer 11, so that stones are crushed, the working arm body 2 is retracted into a fully-folded state within the same working range under the same impact load, the length is minimum, the structure is compact, the overall size length, the width and the height of the hair prying trolley are reduced, and the overall influence of the roadway size is small, and the passing performance is good, the working arm has the least operation action and can be positioned quickly and accurately during working.
The fifth step: a telescopic inner cylinder protective cover 16 is arranged outside the telescopic inner cylinder 14, and protects a pitching oil cylinder 19 and a telescopic oil cylinder 18 on equipment, so that the safety protection capability and reliability of the equipment are improved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A working arm of a small-sized hair prying trolley comprises a hair prying trolley body (1), a working arm body (2) and a pin shaft (24), wherein the working arm body (2) is fixedly installed on the hair prying trolley body (1), and is characterized in that the working arm body (2) is formed by combining a breaking hammer (11), a first spiral swinging oil cylinder (12), a second spiral swinging oil cylinder (13), a telescopic inner cylinder (14), a main arm (15), a telescopic inner cylinder protective cover (16), a telescopic inner cylinder circumferential limiting block (17), a telescopic oil cylinder (18), a pitching oil cylinder (19), a main arm rotary seat (21) and a rotary reducer (22), the rotary reducer (22) is installed on the hair prying trolley body (1), the main arm rotary seat (21) is installed on the rotary reducer (22) through a bolt, the main arm (15) is hinged with the main arm rotary seat (21) through the pin shaft (24), the pitching oil cylinder (19) on two sides is respectively hinged with the main arm rotary seat (21) and the main arm (15) through two pin shafts (24), one end of the telescopic oil cylinder (18) is connected with the telescopic inner cylinder (14), and the telescopic oil cylinder (14), the first spiral swing oil cylinder (12) is installed on the second spiral swing oil cylinder (13), and the side wall of the first spiral swing oil cylinder (12) is provided with a breaking hammer (11).
2. The working arm of the small-sized crowing trolley according to claim 1, characterized in that the second spiral swinging cylinder (13) is formed by combining a cylinder part and a U-shaped frame, the cylinder constituting the second spiral swinging cylinder (13) is fixedly mounted on the telescopic inner cylinder (14) through a bracket, the cylinder part and the U-shaped frame part constituting the second spiral swinging cylinder (13) move relatively, and the U-shaped frame parts are arranged on two sides of the cylinder part.
3. The working arm of a small-sized hair prying trolley according to claim 2, characterized in that the first spiral swinging cylinder (12) is formed by combining a cylinder part and a U-shaped frame, the cylinder part constituting the first spiral swinging cylinder (12) is fixedly installed on the U-shaped frame part constituting the second spiral swinging cylinder (13) in a bolt fixing manner, and the U-shaped frame part constituting the first spiral swinging cylinder (12) is movably installed on the cylinder part.
4. A compact prying trolley arm according to claim 3, characterized in that the breaking hammer (11) is bolted to the U-shaped frame portion that constitutes the first spiral swing cylinder (12), the breaking hammer (11) is formed by a combination of a breaking hammer portion and a water spray mechanism, and the water spray mechanism is independently mounted on the breaking hammer portion and operated independently.
5. The working arm of the small-sized crowning trolley as claimed in claim 1, wherein the telescopic inner cylinder (14) is movably clamped in the main arm (15), a telescopic inner cylinder circumferential limiting block (17) is fixedly arranged on the main arm (15), and the telescopic inner cylinder circumferential limiting block (17) and part of the side wall of the telescopic inner cylinder (14) clamped in the main arm (15) are jointed.
6. The working arm of the small-sized crowning trolley according to claim 1, characterized in that a telescopic cylinder (18) is arranged in the main arm (15), a pin (24) is fixedly arranged on the end part of the telescopic cylinder (18), and the pin (24) on the end part of the telescopic cylinder (18) is bolted on the side wall of the telescopic inner cylinder (14).
7. The working arm of the small-sized crowing trolley as claimed in claim 1, wherein driving lamps (23) are symmetrically arranged on two sides of the main arm rotary seat (21).
8. The working arm of the small-sized crowning trolley according to claim 1, characterized in that the telescopic inner cylinder protective cover (16) is arranged outside the telescopic inner cylinder (14), the end part of the telescopic inner cylinder protective cover (16) is movably mounted with the side wall of the telescopic inner cylinder (14), and the telescopic inner cylinder protective cover (16) is attached with the side wall of the main arm (15).
9. A compact pry trolley work arm according to claim 1, wherein the slewing reducer (22) is formed by the combination of a motor section, a rotating disk and an outer fixed disk, the motor section being mounted within the outer fixed disk section and the rotating disk section being fixedly mounted on the motor section, the motor section powering the rotating disk section and the rotating disk section sealing against the outer fixed disk section.
10. The working arm of a small-sized prying trolley according to claim 9, characterized in that the main arm rotary seat (21) is formed by combining a triangular bracket part and a circular mounting plate part, the mounting plate part forming the main arm rotary seat (21) is fixedly mounted on the rotary plate part forming the rotary speed reducer (22) in a bolt fixing manner, and two pin shafts (24) are movably mounted on the triangular bracket forming the main arm rotary seat (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211251926.9A CN115749768A (en) | 2022-10-13 | 2022-10-13 | Small-size sled hair platform truck work arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211251926.9A CN115749768A (en) | 2022-10-13 | 2022-10-13 | Small-size sled hair platform truck work arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115749768A true CN115749768A (en) | 2023-03-07 |
Family
ID=85351319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211251926.9A Pending CN115749768A (en) | 2022-10-13 | 2022-10-13 | Small-size sled hair platform truck work arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115749768A (en) |
-
2022
- 2022-10-13 CN CN202211251926.9A patent/CN115749768A/en active Pending
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