A depth measuring device

Abstract

The utility model relates to a kind of depth measuring devices, including with the big gear of construction equipment's goose head pulley connection and following synchronous rotation, fixed mounting bracket on construction equipment, transmission shaft being rotatably arranged on mounting bracket by bearing, small gear and encoder being driven connection by transmission shaft transmission;The small gear and big gear meshing transmission connection.The depth measuring device of the utility model improves the measurement precision of construction equipment working device construction depth, improves construction quality, improves construction equipment quality.

Description

Technical Field

[0001] This utility model relates to a depth measuring device and belongs to the field of engineering machinery technology. Background Technology

[0002] Rotary drilling rigs, hydraulic grab buckets for diaphragm walls, twin-wheel milling machines, and twin-wheel winches are all engineering machinery that rely on hydraulic motors to drive winch drums, using steel wire ropes wound on the winches to lift and lower the working device. The working depth of the working device needs to be measured according to construction requirements. The working depth is a crucial indicator of the construction quality of these machines, and the accuracy of depth measurement during construction is a key factor in evaluating the quality of the equipment.

[0003] The existing technical solution involves directly connecting the encoder to the winch drum of the construction equipment. When the wire rope drives the winch to rotate, the encoder rotates simultaneously, indirectly measuring the amount of wire rope lowered through calculation, thereby determining the construction depth. However, because the wire rope winds multiple times on the winch, the circumference of the outer layer differs significantly from that of the inner layer. Directly measuring and calculating the number of turns using the encoder would severely impact measurement accuracy, consequently affecting construction quality and reducing the overall quality of the construction equipment.

[0004] Therefore, there is an urgent need for a depth sounding device with high measurement accuracy. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a depth measuring device with high measurement accuracy, thereby improving the accuracy of construction depth measurement of the working device, improving construction quality, and improving the quality of construction equipment.

[0006] The purpose of this utility model is achieved as follows:

[0007] A depth sounding device includes a large gear connected to and rotating synchronously with a gooseneck pulley of a construction device, a mounting bracket fixed on the construction device, a drive shaft rotatably mounted on the mounting bracket via bearings, and a small gear and an encoder connected via the drive shaft; the small gear and the large gear are meshed and connected for transmission.

[0008] Furthermore, a steel wire rope is embedded in the groove of the goose head pulley. The steel wire rope is pressed against the goose head pulley by the gravity of the suspended working device. When the steel wire rope is lowered into the working device, it drives the goose head pulley to rotate.

[0009] Furthermore, the large gear includes an annular mounting plate fixed to the side of the goose-head pulley and a gear ring fixed to the annular mounting plate; the gear ring is coaxial with the goose-head pulley and rotates synchronously; the small gear meshes with the gear ring.

[0010] Furthermore, the mounting bracket is L-shaped and fixedly mounted on the mounting base of the construction equipment; the mounting bracket is provided with a support for placing the encoder.

[0011] Furthermore, a protective cover is bolted to the mounting bracket to protect the encoder.

[0012] Furthermore, the drive shaft is rotatably mounted on the mounting bracket via a deep groove ball bearing and a retaining ring.

[0013] Furthermore, the end of the drive shaft is threaded and fitted with a locking nut, and a sleeve is fitted on the drive shaft. The pinion is fitted on the drive shaft and located between the sleeve and the locking nut; the pinion is locked to the drive shaft by the locking nut and the sleeve.

[0014] Furthermore, the drive shaft and the encoder are connected by a flexible coupling.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention installs a depth measuring device at the goose head of the construction equipment. During the lowering of the wire rope, the goose head pulley rotates synchronously. The number of rotations of the goose head pulley is counted through the transmission connection of the large gear, small gear, and encoder, and the length of the lowered wire rope is calculated, thereby obtaining the construction depth of the working device. This significantly improves the measurement accuracy, construction quality, and the quality level of the construction equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a depth measuring device according to the present invention.

[0018] Figure 2 This is a side view of the depth measuring device of this utility model.

[0019] Figure 3 This is a schematic diagram of the encoder installation structure of a depth measuring device according to the present invention.

[0020] Figure 4 This is a schematic diagram of the large gear structure of a depth measuring device according to this utility model.

[0021] Figure 5 This is a schematic diagram of the installation structure of a depth sounding device according to the present invention.

[0022] in:

[0023] Mounting base 1, pinion 2, goosehead pulley 3, large gear 4, wire rope 5, construction equipment 6, mounting bracket 7, drive shaft 8, bearing 9, encoder 10, bolt 11, protective cover 12, retaining ring 13, sleeve 14, lock nut 15, flexible coupling 16, support base 17, annular mounting plate 41, gear ring 42. Detailed Implementation

[0024] See Figures 1-5 The present invention relates to a depth measuring device, comprising a large gear 4 connected to and rotating synchronously with the goose-head pulley 3 of the construction equipment 6, a mounting bracket 7 fixed on the construction equipment 6, a transmission shaft 8 rotatably mounted on the mounting bracket 7 via a bearing 9, a small gear 2 and an encoder 10 connected to the transmission shaft 8.

[0025] A steel wire rope 5 is embedded in the groove of the goose-head pulley 3. During construction, the construction equipment 6 suspends and raises the working device via the steel wire rope 5. The steel wire rope 5 is pressed against the goose-head pulley 3 by the weight of the hoisting working device. When the steel wire rope 5 lowers the working device, it drives the goose-head pulley 3 to rotate. There is no relative slippage between the two. Therefore, the lowering length of the steel wire rope 5 can be measured by measuring the number of rotations of the goose-head pulley 3. The lowering depth of the working device can be indirectly obtained by calculating the circumference of the goose-head pulley 3. Compared with the prior art of directly measuring the number of rotations of the steel wire rope drum, the circumference of the goose-head pulley 3 remains unchanged. Therefore, the number of rotations of the goose-head pulley 3 is directly proportional to the lowering length of the steel wire rope 5, which can more accurately measure the construction depth.

[0026] Since the goose-head pulley 3 rotates automatically without a drive shaft, its rotation count cannot be transmitted via the drive shaft. Therefore, in this embodiment, a large coaxial gear 4 is fixedly mounted on the side of the goose-head pulley 3. The large gear 4 transmits the rotation count of the goose-head pulley 3 to the small gear 2 that meshes with it, thus facilitating measurement. The large gear 4 includes an annular mounting plate 41 fixedly mounted on the side of the goose-head pulley 3 and a gear ring 42 fixedly mounted on the annular mounting plate 41. The gear ring 42 is coaxial with the goose-head pulley 3 and rotates synchronously. The small gear 2 meshes with the gear ring 42.

[0027] To ensure accurate transmission and measurement of the number of rotations of the goose-head pulley 3, the mounting bracket 7 is L-shaped and its bottom is fixed to the mounting seat 1 on the construction equipment 6. The drive shaft 8 is mounted on the side of the mounting bracket 7 by a mounting retaining ring 13 and a deep groove ball bearing. In other embodiments, other structures such as tapered bearings can be used instead. The side of the mounting bracket 7 is also provided with a support seat 17 for placing the encoder 10, and a protective cover 12 for protecting the encoder 10 is fixed on the mounting bracket 7 by bolts 11.

[0028] One end of the drive shaft 8 is threaded and fitted with a locking nut 15. A sleeve 14 is fitted on the drive shaft 8. The pinion 2 is fitted on the drive shaft 8 and located between the sleeve 14 and the locking nut 15. The pinion 2 is locked to the drive shaft 8 by the locking nut 15 and the sleeve 14. The other end of the drive shaft 8 is connected to the encoder 10 via a flexible coupling 16.

[0029] The steel wire rope 5 lowers the working device, which in turn drives the goose head pulley 3 to rotate synchronously. The large gear 4 installed on the side of the goose head pulley 3 rotates along with it, which in turn drives the small gear 2 to rotate. Finally, the encoder 10 measures the number of rotations. The number of rotations of the large gear 4 can be calculated from the gear ratio between the small gear 2 and the large gear 4, which is the number of rotations of the goose head pulley 3. Combined with the circumference of the center position of the groove of the goose head pulley 3, the moving length of the steel wire rope 5, that is, the lowering depth of the working device, can be accurately calculated.

[0030] This invention installs a depth measuring device at the goose head of the construction equipment 6. During the lowering of the wire rope, the goose head pulley 3 will rotate synchronously. The encoder 10 counts the number of rotations of the goose head pulley 3 and calculates the length of the lowered wire rope 5, thereby obtaining the construction depth of the working device. This significantly improves the measurement accuracy and enhances the construction quality.

[0031] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A depth measuring device, characterized by: It includes a large gear (4) that is connected to and rotates synchronously with the goose-head pulley (3) of the construction equipment (6), a mounting bracket (7) fixed on the construction equipment (6), a drive shaft (8) that is rotatably mounted on the mounting bracket (7) via a bearing (9), a small gear (2) and an encoder (10) that are connected by transmission via the drive shaft (8); the small gear (2) and the large gear (4) are meshed and connected by transmission.

2. The depth finder of claim 1 wherein: A steel wire rope (5) is embedded in the groove of the goose head pulley (3). The steel wire rope (5) is pressed against the goose head pulley (3) by the gravity of the suspended working device. When the steel wire rope (5) lowers the working device, it drives the goose head pulley (3) to rotate.

3. The depth sounding device according to claim 1, characterized in that: The large gear (4) includes an annular mounting plate (41) fixed on the side of the goose head pulley (3) and a gear ring (42) fixed on the annular mounting plate (41); the gear ring (42) is coaxial with the goose head pulley (3) and rotates synchronously; the small gear (2) meshes with the gear ring (42).

4. The depth sounding device according to claim 1, characterized in that: The mounting bracket (7) is L-shaped and is fixed on the mounting seat (1) on the construction equipment (6); the mounting bracket (7) is provided with a support seat (17) for placing the encoder (10).

5. The depth sounding device according to claim 1, characterized in that: A protective cover (12) is fixed on the mounting bracket (7) by bolts (11) to protect the encoder (10).

6. The depth sounding device according to claim 1, characterized in that: The drive shaft (8) is rotatably mounted on the mounting bracket (7) via a deep groove ball bearing and a retaining ring (13).

7. The depth sounding device according to claim 1, characterized in that: The end of the drive shaft (8) is threaded and fitted with a locking nut (15). A sleeve (14) is fitted on the drive shaft (8). The pinion (2) is fitted on the drive shaft (8) and located between the sleeve (14) and the locking nut (15). The pinion (2) is locked to the drive shaft (8) by the locking nut (15) and the sleeve (14).

8. The depth sounding device according to claim 1, characterized in that: The drive shaft (8) and the encoder (10) are connected by a flexible coupling (16).

Images