A rear axle frame assembly device and assembly method for a counterbalance forklift truck

Abstract

The application discloses a rear axle frame assembling device and method for a counterbalance forklift, and belongs to the technical field of rear axle frame assembling. The device comprises a base and a quick clamping device, and further comprises a front top pressing support, a side top pressing support, a cylinder clamping mechanism, a quick clamping device support, a rear axle frame support assembly and a fixed plate support which are fixed on the base. The quick clamping devices fixed on the front top pressing support and the side top pressing support are respectively used for clamping the rear axle frame at the front and the side of the rear axle frame to realize front positioning of the rear axle frame. The quick clamping device fixed on the quick clamping device support and the cylinder clamping mechanism jointly act on the rear of the rear axle frame to realize rear positioning of the rear axle frame. The rear axle frame support assembly and the fixed plate support respectively support the front and rear of the rear axle frame to realize bottom positioning of the rear axle frame. The application can improve assembling accuracy, improve production efficiency and product quality, and reduce resource waste.

Description

Technical Field

[0001] This invention relates to a rear axle assembly device and assembly method for a counterbalanced forklift, belonging to the technical field of rear axle assembly. Background Technology

[0002] Among logistics handling machinery products, one category belongs to counterbalance forklifts, and the rear axle frame is one of the main structural components of a counterbalance forklift. The workpiece shown in this invention is the rear axle frame component of a counterbalance forklift, and its splicing points require high dimensional accuracy. Currently, manual marking and splicing are used for assembly, which is not only time-consuming, inaccurate, and labor-intensive, but also has low production efficiency.

[0003] The existing technology involves manually marking and assembling points on a welding platform, manually measuring dimensions, and requiring two people to work together to adjust the position of the structural components based on the marking results.

[0004] In summary, the existing technology has the following disadvantages: 1. Manual marking and splicing results in low production efficiency and high labor intensity; 2. Manual measurement of dimensions leads to poor consistency of finished products; 3. It requires multiple people to cooperate, which consumes human resources. Summary of the Invention

[0005] The purpose of this invention is to provide a rear axle assembly device and assembly method for counterbalanced forklifts, solving the problems of low efficiency, poor product consistency, and resource waste in the prior art.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] In a first aspect, the present invention provides a rear axle frame assembly for a counterbalanced forklift, comprising a base and a quick-clamp device, and further comprising a component fixed to the base:

[0008] The front clamping support is fixed to the front of the base. The quick clamping device fixed on the front clamping support is used to clamp the rear axle frame at the front to achieve front positioning of the rear axle frame.

[0009] The side clamping support is located on one side of the rear axle frame assembly. The quick-clamp device fixed on the side clamping support is used to clamp the rear axle frame on the side to achieve side positioning of the rear axle frame.

[0010] The cylinder clamping mechanism is fixed to the rear of the base and is used to provide support force to the rear of the rear axle frame;

[0011] The quick-clamp device support is located behind the fixed plate support. The quick-clamp device fixed on the quick-clamp device support is used to clamp the rear part of the rear bridge frame.

[0012] The quick-clamp device fixed on the quick-clamp device support and the cylinder clamping mechanism work together to position the rear of the rear axle frame.

[0013] The rear axle support assembly is located below the front axle seat base plate assembly in the middle of the rear axle frame and is used to support the front of the rear axle frame.

[0014] The fixed plate support is located below the rear axle fixed plate assembly in the middle and rear part of the rear axle frame, and is used to support the rear part of the rear axle frame.

[0015] The rear axle support assembly and the fixed plate support support the front and rear of the rear axle to achieve bottom positioning of the rear axle.

[0016] Furthermore, it also includes a cylinder clamping mechanism base, with the cylinder clamping mechanism fixedly connected to one side and the base fixedly connected to the other side, so as to achieve a fixed connection between the cylinder clamping mechanism and the base.

[0017] Furthermore, the base surface is provided with a cross groove, the center of which is located at the center of the rear axle frame assembly, for detecting whether there is any deviation in the rear axle frame assembly after the rear axle frame assembly is completed.

[0018] Furthermore, the rear axle support assembly includes a pin, a first rear axle support, and a second rear axle support. The top of the first rear axle support is fixedly connected to the second rear axle support and the pin. The second rear axle support is I-shaped. The pin is located on the left and right sides of the second rear axle support. The pin is used to limit the lateral position of the rear axle.

[0019] The rear bridge support assembly has two components.

[0020] Furthermore, the front clamping support is I-shaped and there is one; the side clamping support is I-shaped and there are two.

[0021] Furthermore, the cylinder clamping mechanism includes a cylinder, a connecting plate, a guide plate, and a pin. The telescopic rod of the cylinder is connected to one end of the connecting plate, the other end of the connecting plate is connected to one end of the guide plate, and the other end of the guide plate is connected to the pin. The pin is a stepped pin and is installed in a stepped through hole provided in the guide plate. The pin is used to position the longitudinal position of the rear axle frame.

[0022] The cylinder can drive the output shaft to extend under the drive of the air source, and sequentially drive the connecting plate, guide plate and pin to move towards the rear bridge frame until it supports the rear bridge frame, thereby providing support force to the rear of the rear bridge frame.

[0023] Furthermore, the fixed plate support has four steps, which are stepped structures. Two steps in the stepped structure are connected by an inclined plane. The step with the lower height is used to support the rear axle frame in the longitudinal direction. Bolts are provided on the inclined plane. The lateral positioning of the rear axle frame is achieved by adjusting the exposed length of the bolts.

[0024] Furthermore, four quick-clamp devices, model CH-36092M, are provided for clamping the rear axle frame.

[0025] In a second aspect, the present invention provides a method for assembling a rear axle frame for a counterbalanced forklift according to any one of the first aspects, comprising:

[0026] Secure the base to the welding platform;

[0027] Adjust the cylinder clamping mechanism and quick clamping device to the relaxed state, and adjust the exposed length of the bolts on the inclined surface of the fixed plate support to the preset value;

[0028] Place the rear axle seat base plate on the rear axle support assembly, and insert the pins on the rear axle support assembly into the through holes of the axle seat base plate.

[0029] Place the rear axle fixing plate of the rear axle frame on the fixing plate support, and press the quick clamp device, which is fixed on the front clamping support and the quick clamp device support, tightly.

[0030] Install the counterweight fixing plate of the rear axle frame on the pin of the cylinder clamping mechanism, press the rear surface of the counterweight fixing plate against the front surface of the cylinder clamping mechanism, and turn on the air source connected to the cylinder clamping mechanism to push the rear axle frame to the preset position.

[0031] Place the square plate of the rear axle frame flat on the axle seat base plate, press the short side of one side of the square plate against the front surface of the counterweight fixing plate, and press the quick clamp device fixed on the side top support to push the rear axle frame to the preset position.

[0032] A reinforcing rib is installed along the centerline of the square plate to connect the square plate and the counterweight fixing plate, thus completing the cable tray assembly.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0034] This invention provides a rear axle frame assembly device and method for counterbalanced forklifts. It is simple in form and convenient to operate, enabling efficient completion of the rear axle frame assembly process. Furthermore, the assembly process does not require excessive consideration of dimensional accuracy, effectively ensuring assembly precision and improving production efficiency. Through the combination of various limiting measures, the rear axle frame is directly positioned, eliminating the need for manual marking and splicing, thus solving the problem of poor consistency caused by human error and resulting in high-quality finished products.

[0035] By using various limiting measures such as pins and clamping mechanisms, rapid assembly can be achieved, saving the step of manually adjusting the position of the workpiece, improving work efficiency while reducing labor intensity; multiple positioning and limiting devices can be adjusted in size to adapt to different models of workpieces, improving equipment utilization and reducing resource waste. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a rear axle assembly for a counterbalanced forklift provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the base provided in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the rear bridge support assembly provided in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the front clamping support provided in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the side clamping support provided in an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the cylinder clamping mechanism provided in an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the fixed plate support provided in an embodiment of the present invention;

[0043] Figure 8 This is a schematic diagram of the quick-clamp device support provided in an embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram of the quick-clamp device provided in an embodiment of the present invention;

[0045] Figure 10 This is a schematic diagram of the base of the cylinder clamping mechanism provided in an embodiment of the present invention;

[0046] Figure 11 This is a schematic diagram of the rear bridge provided in an embodiment of the present invention;

[0047] Figure 12 This is one of the schematic diagrams of the assembly process of a rear axle assembly device for a counterbalanced forklift provided in an embodiment of the present invention;

[0048] Figure 13 This is the second schematic diagram of the assembly process of a rear axle assembly device for a counterbalanced forklift provided in an embodiment of the present invention;

[0049] Figure 14 This is the third schematic diagram of the assembly process of a rear axle assembly device for a counterbalanced forklift provided in an embodiment of the present invention.

[0050] In the diagram: 1. Base; 1-1. Base platform; 1-2. Base support leg; 2. Rear axle frame support assembly; 2-1. Pin; 2-2. First rear axle frame support; 2-3. Second rear axle frame support; 3. Front clamping support; 4. Side clamping support; 5. Cylinder clamping mechanism; 5-1. Cylinder; 5-2. Connecting plate; 5-3. Guide plate; 5-4. Pin; 6. Fixing plate support; 6-1. First step; 6-2. Bolt; 7. Quick clamp device support; 8. Quick clamp device; 9. Cylinder clamping mechanism base; 10. Rear axle frame; 10-1. Square plate; 10-2. Reinforcing rib; 10-3. Rear axle fixing plate; 10-4. Counterweight fixing plate; 10-5. Axle seat base plate. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the scope of protection of the present invention.

[0052] Example 1

[0053] like Figure 1 As shown, the present invention provides a rear axle frame assembly for a counterbalanced forklift, comprising:

[0054] Base 1, 1 piece in total, is the basic platform for the assembly, with the structure as follows: Figure 2 As shown, the system includes a base platform 1-1 and base legs 1-2. The base platform 1-1 consists of one piece and is used to place parts of the rear axle frame 10 and its assembly. It has functional mounting threaded holes on its surface, which, when used with corresponding bolts, allow for the installation and fixing of parts of the assembly. A cross groove is also provided on its surface, serving as a process reference for machining the functional mounting threaded holes. Furthermore, after the rear axle frame 10 is assembled, the center of the cross groove coincides with the center of the square plate 10-1 of the rear axle frame 10, which can be used to check for deviations in the tooling dimensional accuracy. The base legs 1-2 consist of four pieces and are used to fix and support the base platform 1-1. They are welded to the base platform 1-1 to support and fix it. Threaded holes are provided at the bottom, allowing for connection to the welding platform via bolts, thus supporting and fixing the base 1.

[0055] Rear axle support assembly 2, consisting of 2 pieces, structure as follows: Figure 2As shown, one of the positioning and fixing devices for the rear axle frame 10 is a rear axle frame 10. The rear axle frame 10 is positioned laterally by pins 2-1 and supported longitudinally by a second rear axle frame support 2-3. Two pins 2-1 are used to limit the lateral position of the rear axle frame 10 and are installed in the through holes of the second rear axle frame support 2-3. One first rear axle frame support 2-2 is a single piece, integrally welded together. It has a through hole at the top for supporting and fixing the pins 2-1, and a threaded hole at the top for bolt connection to the second rear axle frame support 2-3, supporting and fixing the second rear axle frame support 2-3. A threaded hole at the bottom is bolted to the base 1, supporting and fixing the rear axle frame support assembly 2. One second rear axle frame support 2-3 is a single piece, integrally welded together. Its top plane supports the workpiece and positions the rear axle frame 10 longitudinally. A threaded hole at the bottom is bolted to the first rear axle frame support 2-2, supporting and fixing the second rear axle frame support 2-3.

[0056] The front clamping support 3, consisting of one piece, is welded together. A threaded hole is located at the bottom, which is bolted to the base 1 to support and fix the front clamping support 3. A threaded hole is located at the top, which is bolted to the quick-clamp device 8 to support and fix the quick-clamp device 8. The structure is as follows: Figure 4 As shown.

[0057] Side clamping supports 4, consisting of two pieces, are welded together. The bottom has mounting holes for bolt connection to the base 1, supporting and fixing the side clamping supports 4. The top has threaded holes for bolt connection to the quick-clamp device 8, supporting and fixing the quick-clamp device 8. The structure is as follows. Figure 5 As shown.

[0058] The cylinder clamping mechanism 5, consisting of one unit, is one of the positioning and fixing devices for the rear axle frame 10. Through the telescopic movement of the cylinder 5-1, it drives the linear movement of the connecting plate 5-2, guide plate 5-3, and pin 5-4, achieving lateral and longitudinal support and positioning of the rear axle frame 10. The structure is as follows: Figure 6As shown; Cylinder 5-1, one piece in total, connects to an air source to achieve the longitudinal movement of the telescopic rod of cylinder 5-1. It is the power component for positioning the rear axle frame 10 in the cylinder clamping mechanism 5. A threaded hole is provided at the bottom, and it is connected to the base 9 of the cylinder clamping mechanism by bolts, supporting and fixing cylinder 5-1; Connecting plate 5-2, one piece in total, has a threaded hole in the middle, which is connected to cylinder 5-1 by bolts, supporting and fixing connecting plate 5-2. Threaded holes are provided at the four corners, which are connected to guide plate 5-3 by bolts, allowing guide plate 5-3 to be positioned. -3 is supported and fixed; guide plate 5-3, 1 piece, with threaded holes at the four corners, is connected to the connecting plate 5-2 by bolts to support and fix the guide plate 5-3. Two stepped through holes are set in the middle for installing pins 5-4. The front side contacts the rear axle frame 10 to achieve the lateral positioning of the rear axle frame 10; pins 5-4, 2 pieces, stepped pins 5-4, are installed in the stepped through holes on the guide plate 5-3. By matching the corresponding size on the rear axle frame 10, the longitudinal support and positioning of the rear axle frame 10 is achieved.

[0059] Fixed plate support 6, consisting of 4 pieces, is one of the positioning and support components for the rear bridge frame 10. It includes a first step 6-1, a second step, and an inclined surface connecting the two steps. The upper surface of the first step 6-1 provides longitudinal support for the workpiece, and bolts 6-2 (M12×30) provide lateral positioning for the rear bridge frame 10. The structure is as follows: Figure 7 As shown; the first step 6-1, one piece in total, has two stepped holes at the bottom, which are connected to the base 1 by bolts 6-2 to support and fix the first step 6-1. Threaded holes are provided on the side for installing bolts 6-2 (M12×30); bolt 6-2 (M12×30), one piece in total, is installed on the inclined surface connecting the first step 6-1 and the second step, and the exposed length of the bolt can be adjusted to adapt to the workpiece size.

[0060] The quick-clamp device support 7 consists of one piece, integrally welded together. Threaded holes are provided on the side for bolt connection to the quick-clamp device 8, enabling connection and fixation of the quick-clamp device 8. Threaded holes are provided at the bottom for bolt connection to the base 1, providing support and fixation for the quick-clamp device support 7. The structure is as follows: Figure 8 As shown.

[0061] The quick-clamp device 8, consisting of four parts, is one of the support and positioning components for the rear axle frame 10. Model number CH-36092M. The quick-clamp device 8 is tightened or loosened using a pull or press wrench. When tightened, it can be used to position the rear axle frame 10. An adjusting bolt is located at the front end to adjust the positioning distance according to different rear axle frame 10 dimensions. A threaded hole is located at the bottom, which connects to the front clamping support 3 via bolts, thus supporting and fixing the quick-clamp device 8 (the same applies to the side clamping support 4 and the quick-clamp device support 7). The structure is as follows: Figure 9 As shown.

[0062] The cylinder clamping mechanism base 9, consisting of one piece, is integrally welded together. A threaded hole is provided at the top for bolt connection to the cylinder clamping mechanism 5, providing support and fixation for the cylinder clamping mechanism 5. A threaded hole is provided at the bottom for bolt connection to the base 1, providing support and fixation for the cylinder clamping mechanism base 9. The structure is as follows... Figure 10 As shown.

[0063] The structure of the rear axle frame 10 is as follows Figure 11 As shown, a rear axle fixing plate 10-3 and an axle seat base plate 10-5 are provided below the square plate 10-1. There are two rear axle fixing plates 10-3, one at the front and one at the rear below the square plate 10-1. There are also two axle seat base plates 10-5 connecting the square plate 10-1 and the rear axle fixing plate 10-3. A counterweight fixing plate 10-4 is provided at the rear of the square plate 10-1, and the square plate 10-1 and the counterweight fixing plate 10-4 are connected by a reinforcing rib 10-2.

[0064] The assembly device provided in this embodiment performs the following process for the rear axle frame 10 assembly:

[0065] Step 1: Use lifting equipment to lift base 1 and place it on the welding platform, and use bolts to connect base 1 to the welding platform.

[0066] Step 2: Tighten the rear axle frame support assembly 2 (2 pieces), front clamping support 3, side clamping support 4 (2 pieces), cylinder clamping mechanism 5, fixed plate support 6 (4 pieces), quick clamp device support 7, quick clamp device 8 (4 pieces), and cylinder clamping mechanism base 9 to the corresponding pre-drilled threaded holes on the base 1 using bolts. Tighten the cylinder clamping mechanism 5 to the positioning clamping mechanism base using bolts. Tighten the quick clamp devices 8 (4 pieces) to the front clamping support 3, side clamping support 4 (2 pieces), and quick clamp device support 7 using bolts. Adjust the cylinder clamping mechanism 5 and quick clamp devices 8 (4 pieces) to the relaxed state, and adjust the exposed length of bolt 6-2 (M12×30) to a suitable size (determined according to the rear axle frame 10 drawing), such as... Figure 12 As shown.

[0067] Step 3: Place the axle seat base plate 10-5 (2 pieces) on the rear axle frame support assembly 2 (2 pieces) to support the rear axle frame 10 longitudinally, and insert the pins 2-1 (2 pieces) into the through holes of the axle seat base plate 10-5 and the rear axle frame support assembly 2 to achieve lateral fixation of the rear axle frame 10; place the rear axle fixing plate 10-3 (2 pieces) upright on the fixing plate support 6 (2 pieces) to achieve longitudinal support of the rear axle frame 10, and press and tighten the quick clamping device 8 fixed on the front clamping support 3 and the quick clamping device support 7 to achieve lateral positioning of the rear axle frame 10, such as... Figure 13 As shown.

[0068] Step 4: Install the through hole on the counterweight fixing plate 10-4 onto the pin 5-4 of the cylinder clamping mechanism 5 to achieve longitudinal fixation of the rear axle frame 10. Then, press the rear surface of the counterweight fixing plate 10-4 against the front surface of the cylinder clamping mechanism 5 to achieve lateral fixation. Next, turn on the air supply to the cylinder clamping mechanism 5 and push the rear axle frame 10 to the preset position. Place the square plate 10-1 flat on the axle seat base plate 10-5 (2 pieces) to achieve longitudinal fixation of the rear axle frame 10. Press the short side of one side of the square plate 10-1 against the front surface of the counterweight fixing plate 10-4 and tighten the quick-clamping device 8 (2 pieces) fixed on the side clamping support 4 (2 pieces). Push the rear axle frame 10 to the preset position to achieve lateral fixation of the rear axle frame 10. Finally, mark the center line on the square plate 10-1 and mark the splicing reinforcing rib 10-2, as shown. Figure 14 As shown.

[0069] Example 2

[0070] This invention provides an assembly method for assembling a rear axle frame using the assembly device provided in Embodiment 1, comprising:

[0071] Fix base 1 to the welding platform;

[0072] Adjust the cylinder clamping mechanism 5 and quick clamping device 8 to the relaxed state, and adjust the exposed length of the bolts on the inclined surface of the fixed plate support 6 to the preset value;

[0073] Place the rear axle seat base plate 10-5 on the rear axle support assembly 2, and insert the pin 2-1 on the rear axle support assembly 2 into the through hole of the axle seat base plate 10-5.

[0074] Place the rear axle fixing plate 10-3 of the rear axle frame on the fixing plate support 6, and press the quick clamping device 8, which is fixed on the front clamping support 3 and the quick clamping device support 7, tightly.

[0075] Install the counterweight fixing plate 10-4 of the rear axle frame on the pin 5-4 of the cylinder clamping mechanism 5, press the rear surface of the counterweight fixing plate 10-4 against the front surface of the cylinder clamping mechanism 5, and turn on the air source connected to the cylinder clamping mechanism 5 to push the rear axle frame to the preset position.

[0076] Place the square plate 10-1 of the rear axle frame flat on the axle seat base plate 10-5, press the short side of one side of the square plate 10-1 against the front surface of the counterweight fixing plate 10-4, and press the quick clamp device 8 fixed on the side top support 4 to push the rear axle frame to the preset position.

[0077] A reinforcing rib 10-2 is set on the centerline of square plate 10-1 to connect square plate 10-1 and counterweight fixing plate 10-4, and the cable tray assembly is completed.

[0078] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rear axle frame assembly for a counterbalanced forklift, characterized in that, Includes a base and a quick-clamp device, as well as components fixed to the base: The front clamping support is fixed to the front of the base. The quick clamping device fixed on the front clamping support is used to clamp the rear axle frame at the front to achieve front positioning of the rear axle frame. The side clamping support is located on one side of the rear axle frame assembly. The quick-clamp device fixed on the side clamping support is used to clamp the rear axle frame on the side to achieve side positioning of the rear axle frame. The cylinder clamping mechanism is fixed to the rear of the base and is used to provide support force to the rear of the rear axle frame; The quick-clamp device support is located behind the fixed plate support. The quick-clamp device fixed on the quick-clamp device support is used to clamp the rear part of the rear bridge frame. The quick-clamp device fixed on the quick-clamp device support and the cylinder clamping mechanism work together to position the rear of the rear axle frame. The rear axle support assembly is located below the rear axle support base plate assembly; The mounting plate support is located below the rear axle mounting plate assembly of the rear axle frame; The rear bridge support assembly includes a pin, a first rear bridge support, and a second rear bridge support. The top of the first rear bridge support is fixedly connected to the second rear bridge support and the pin. The second rear bridge support is I-shaped. The pin is located on the left and right sides of the second rear bridge support and is used to limit the lateral position of the rear bridge. The rear bridge support assembly has two components; The fixed plate support has four steps, which are stepped structures. Two steps in the stepped structure are connected by an inclined plane. The step with the lower height is used to support the rear axle frame in the longitudinal direction. Bolts are provided on the inclined plane. The lateral positioning of the rear axle frame is achieved by adjusting the exposed length of the bolts. The rear axle frame has a rear axle fixing plate and an axle seat base plate below the square plate. There are two rear axle fixing plates, one at the front and one at the back below the square plate. There are also two axle seat base plates connecting the square plate and the rear axle fixing plate. A counterweight fixing plate is provided at the rear of the square plate, and the square plate and the counterweight fixing plate are connected by reinforcing ribs. The rear axle assembly for the counterbalance forklift is assembled using the following method: Secure the base to the welding platform; Adjust the cylinder clamping mechanism and quick clamping device to the relaxed state, and adjust the exposed length of the bolts on the inclined surface of the fixed plate support to the preset value; Place the rear axle seat base plate on the rear axle support assembly, and insert the pins on the rear axle support assembly into the through holes of the axle seat base plate. Place the rear axle fixing plate of the rear axle frame on the fixing plate support, and press the quick clamp device, which is fixed on the front clamping support and the quick clamp device support, tightly. Install the counterweight fixing plate of the rear axle frame on the pin of the cylinder clamping mechanism, press the rear surface of the counterweight fixing plate against the front surface of the cylinder clamping mechanism, and turn on the air source connected to the cylinder clamping mechanism to push the rear axle frame to the preset position. Place the square plate of the rear axle frame flat on the axle seat base plate, press the short side of one side of the square plate against the front surface of the counterweight fixing plate, and press the quick clamp device fixed on the side top support to push the rear axle frame to the preset position. A reinforcing rib is installed along the centerline of the square plate to connect the square plate and the counterweight fixing plate, thus completing the cable tray assembly.

2. The rear axle frame assembly for a counterbalanced forklift according to claim 1, characterized in that, It also includes a cylinder clamping mechanism base, with the cylinder clamping mechanism fixedly connected to one side and the base fixedly connected to the other side, so as to achieve a fixed connection between the cylinder clamping mechanism and the base.

3. The rear axle frame assembly for a counterbalanced forklift according to claim 1, characterized in that, The base surface is provided with a cross groove, the center of which is located at the center of the rear axle frame assembly, for detecting whether there is any deviation in the rear axle frame assembly after the rear axle frame assembly is completed.

4. The rear axle frame assembly for a counterbalanced forklift according to claim 1, characterized in that, The front clamping support is I-shaped and there is one; the side clamping support is I-shaped and there are two.

5. The rear axle frame assembly for a counterbalanced forklift according to claim 1, characterized in that, The quick-clamp device is provided in four units, model CH-36092M, and is used to clamp the rear axle frame.

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